Upgrades

File:CookieClicker Upgrades V2.png

All upgrades as of version 2.

Upgrades for Buildings

There are 81 total building upgrades.

Note that upgrades can be cheaper via "Season Savings", "Santa's Dominion" and "Faberge Egg" upgrades or "Divine Discount" and "Five Finger Discount" prestige upgrades (each of them take 1% off of the regular price of all buildings, and every thing is 1% off per cursor, respectivly) or "Fierce Hoarder" dragon aura (take 2% off of the regular price of all buildings).

Cursor

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:CursorNew.png	Reinforced index finger	1	100	The mouse and cursors are twice as efficient. "prod prod"	0
File:PinkCursorNew.png	Carpal tunnel prevention cream		500	The mouse and cursors are twice as efficient. "it... it hurts to click..."	1
File:CyanCursorNew.png	Ambidextrous	10	10,000	The mouse and cursors are twice as efficient. "Look ma, both hands!"	2
File:OrangeCursorNew.png	Thousand fingers	20	100,000	The mouse and cursors gain +0.1 cookies for each non-cursor object owned. "clickity"	3
File:GoldCursorNew.png	Million fingers	40	10 million	The mouse and cursors gain +0.5 cookies for each non-cursor object owned. "clickityclickity"	4
File:RustedCursorNew.png	Billion fingers	80	100 million	The mouse and cursors gain +5 cookies for each non-cursor object owned. "clickityclickityclickity"	5
File:BlackCursorNew.png	Trillion fingers	120	1 billion	The mouse and cursors gain +50 cookies for each non-cursor object owned. "clickityclickityclickityclickity"	6
File:SilverCursorNew.png	Quadrillion fingers	160	10 billion	The mouse and cursors gain +500 cookies for each non-cursor object owned. "clickityclickityclickityclickityclick"	43
File:GreenCursorNew.png	Quintillion fingers	200	10 trillion	The mouse and cursors gain +5,000 cookies for each non-cursor object owned. "man, just go click click click click click, it’s real easy, man."	82
File:BlueCursorNew.png	Sextillion fingers	240	100 trillion	The mouse and cursors gain +50,000 cookies for each non-cursor object owned. "sometimes things just click"	109
File:BlueCursorsNew.png	Septillion fingers	280	1 quadrillion	The mouse and cursors gain +500,000 cookies for each non-cursor object owned. "[cursory flavor text]"	188
File:BlueCursorsNew.png	Octillion fingers	320	10 quadrillion	The mouse and cursors gain +5 million cookies for each non-cursor object owned. "Turns out you can quite put your finger on it."	189

• Note that only Carpal tunnel prevention cream and Ambidextrous stack with Reinforced index finger. All other upgrades are not affected by the multiplier.

Grandma

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:RollingPinNew.png	Forwards from grandma	1	1,000	Grandmas are twice as efficient. "RE:RE:thought you'd get a kick out of this ;))"	7
File:PinkRollingPinNew.png	Steel-plated rolling pins	5	5,000	Grandmas are twice as efficient. "Just what you kneaded."	8
File:CyanRollingPinNew.png	Lubricated dentures	25	50,000	Grandmas are twice as efficient. "squish"	9
File:OrangeRollingPinNew.png	Prune juice	50	5 million	Grandmas are twice as efficient. "Gets me going."	44
File:GoldRollingPinNew.png	Double-thick glasses	100	500 million	Grandmas are twice as efficient. "Oh... so THAT's what I've been baking."	110
File:RustedRollingPinNew.png	Aging agents	150	50 billion	Grandmas are twice as efficient. "Counter-intuitively, grandmas have the uncanny ability to become more powerful the older they get."	192
File:BlackRollingPinNew.png	Xtreme walkers	200	50 trillion	Grandmas are twice as efficient. "Complete with flame decals and a little horn that goes "toot"."	294
File:SilverRollingPinNew.png	The Unbridling	250	50 quadrillion	Grandmas are twice as efficient. "It might be a classic tale of bad parenting, but let's see where grandma is going with this."	307

Farm

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:WateringCanNew.png	Cheap hoes	1	11,000	Farms are twice as efficient. "Rake in the dough!"	10
File:PinkWateringCanNew.png	Fertilizer	5	55,000	Farms are twice as efficient. "It's chocolate, I swear."	11
File:CyanWateringCanNew.png	Cookie trees	25	550,000	Farms are twice as efficient. "A relative of the breadfruit."	12
File:OrangeWateringCanNew.png	Genetically-modified cookies	50	55 million	Farms are twice as efficient. "All-natural mutations."	45
File:GoldWateringCanNew.png	Gingerbread scarecrows	100	5.5 billion	Farms are twice as efficient. "Staring at your crops with mischievous glee."	111
File:RustedWateringCanNew.png	Pulsar sprinklers	150	550 billion	Farms are twice as efficient. "There's no such thing as over-watering. The moistest is the bestest."	193
File:BlackWateringCanNew.png	Fudge fungus	200	550 trillion	Farms are twice as efficient. "A sugary parasite whose tendrils help cookie growth. Please do not breathe in the spores. In case of spore ingestion, seek medical help within the next 36 seconds."	295
File:SilverWateringCanNew.png	Wheat triffids	250	550 quadrillion	Farms are twice as efficient. "Taking care of crops is so much easier when your plants can just walk about and help around the farm. Do not pet. Do not feed. Do not attempt to converse with."	308

Mine

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:PickNew.png	Sugar gas	1	120,000	Mines are twice as efficient. "A pink, volatile gas, found in the depths of some chocolate caves."	16
File:PinkPickNew.png	Megadrill	5	600,000	Mines are twice as efficient. "You're in deep."	17
File:CyanPickNew.png	Ultradrill	25	6 million	Mines are twice as efficient. "Finally caved in?"	18
File:OrangePickNew.png	Ultimadrill	50	600 million	Mines are twice as efficient. "Pierce the heavens, etc."	47
File:GoldPickNew.png	H-bomb mining	100	60 billion	Mines are twice as efficient. "Questionable efficiency, but spectacular nonetheless."	113
File:RustedPickNew.png	Coreforge	150	6 trillion	Mines are twice as efficient. "You've finally dug a tunnel down to the Earth's core. It's pretty warm down here."	195
File:BlackPickNew.png	Planetsplitters	200	6 quadrillion	Mines are twice as efficient. "These new state-of-the-art excavators have been tested on Merula, Globort and Flwanza VI, among other distant planets which have been curiously quiet lately."	296
File:SilverPickNew.png	Canola oil wells	250	6 quintillion	Mines are twice as efficient. "A previously untapped resource, canola oil permeates the underground olifers which grant it its particular taste and lucrative properties."	309

Factory

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:GearsNew.png	Sturdier conveyor belts	1	1.3 million	Factories are twice as efficient. "You're going places."	13
File:PinkGearsNew.png	Child labor	5	6.5 million	Factories are twice as efficient. "Cheaper, healthier workforce."	14
File:CyanGearsNew.png	Sweatshop	25	65 million	Factories are twice as efficient. "Slackers will be terminated."	15
File:OrangeGearsNew.png	Radium reactors	50	6.5 billion	Factories are twice as efficient. "Gives your cookies a healthy glow."	46
File:GoldGearsNew.png	Recombobulators	100	650 billion	Factories are twice as efficient. "A major part of cookie recombobulation."	112
File:RustedGearsNew.png	Deep-bake process	150	65 trillion	Factories are twice as efficient. "A patented process increasing cookie yield two-fold for the same amount of ingredients. Don't ask how, don't take pictures, and be sure to wear your protective suit."	194
File:BlackGearsNew.png	Cyborg workforce	200	65 quadrillion	Factories are twice as efficient. "Semi-synthetic organisms don't slack off, don't unionize, and have 20% shorter lunch breaks, making them ideal labor fodder."	297
File:SilverGearsNew.png	78-hour days	250	65 quintillion	Factories are twice as efficient. "Why didn't we think of this earlier?"	310

Bank

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:SackNew.png	Taller tellers	1	14 million	Banks are twice as efficient."Able to process a higher amount of transactions. Careful though, as taller tellers tell tall tales."	232
File:PinkSackNew.png	Scissor-resistant credit cards	5	70 million	Banks are twice as efficient."For those truly valued customers."	233
File:CyanSackNew.png	Acid-proof vaults	25	700 million	Banks are twice as efficient."You know what they say : better safe than sorry."	234
File:OrangeSackNew.png	Chocolate coins	50	70 billion	Banks are twice as efficient."This revolutionary currency is much easier to melt from and into ingots - and tastes much better, for a change."	235
File:GoldSackNew.png	Exponential interest rates	100	7 trillion	Banks are twice as efficient."Can't argue with mathematics! Now fork it over."	236
File:RustedSackNew.png	Financial zen	150	700 trillion	Banks are twice as efficient."The ultimate grail of economic thought; the feng shui of big money, the stock market yoga - the Heimlich maneuver of dimes and nickels."	237
File:BlackSackNew.png	Way of the wallet	200	700 quadrillion	Banks are twice as efficient."This new monetary school of thought is all the rage on the banking scene; follow its precepts and you may just profit from it."	298
File:SilverSackNew.png	The stuff rationale	250	700 quintillion	Banks are twice as efficient."If not now, when? If not it, what? If not things... stuff?"	311

Wizard Tower

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:HatNew.png	Pointier hats	1	3.3 billion	Wizard towers are twice as efficient."Tests have shown increased thaumic receptivity relative to the geometric proportions of wizardly conic implements."	244
File:PinkHatNew.png	Beardlier beards	5	16.5 billion	Wizard towers are twice as efficient."Haven't you heard? The beard is the word."	245
File:CyanHatNew.png	Ancient grimoires	25	165 billion	Wizard towers are twice as efficient."Contain interesting spells such as "Turn Water To Drool", "Grow Eyebrows On Furniture" and "Summon Politician"."	246
File:OrangeHatNew.png	Kitchen curses	50	16.5 trillion	Wizard towers are twice as efficient."Exotic magic involved in all things pastry-related. Hexcellent!"	247
File:GoldHatNew.png	School of sorcery	100	1.65 quadrillion	Wizard towers are twice as efficient."This cookie-funded academy of witchcraft is home to the 4 prestigious houses of magic : the Jocks, the Nerds, the Preps, and the Deathmunchers."	248
File:RustedHatNew.png	Dark formulas	150	165 quadrillion	Wizard towers are twice as efficient."Eldritch forces are at work behind these spells - you get the feeling you really shouldn't be messing with those. But I mean, free cookies, right?"	249
File:BlackHatNew.png	Cookiemancy	200	165 quintillion	Wizard towers are twice as efficient."There it is; the perfected school of baking magic. From summoning chips to hexing nuts, there is not a single part of cookie-making that hasn't been improved tenfold by magic tricks."	300
File:SilverHatNew.png	Rabbit trick	250	165 sextillion	Wizard towers are twice as efficient."Using nothing more than a fancy top hat, your wizards have found a way to simultaneously curb rabbit population and produce heaps of extra cookies for basically free! Resulting cookies may or may not be fit for vegans."	313

Shipment

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:SpaceshipNew.png	Vanilla nebulae	1	51 billion	Shipments gain +30 base CpS. "If you removed your space helmet, you could probably smell it! (Note : don't do that.)"	19
File:PinkSpaceshipNew.png	Wormholes	5	255 billion	Shipments are twice as efficient. "By using these as shortcuts, your ships can travel much faster."	20
File:CyanSpaceshipNew.png	Frequent flyer	25	2.55 trillion	Shipments are twice as efficient. "Come back soon!"	21
File:OrangeSpaceshipNew.png	Warp drive	50	255 trillion	Shipments are twice as efficient. "To boldly bake."	48
File:GoldSpaceshipNew.png	Chocolate monoliths	100	25.5 quadrillion	Shipments are twice as efficient. "My god. It's full of chocolate bars."	114
File:RustedSpaceshipNew.png	Generation Ship	150	2.55 quintillion	Shipments are twice as efficient. "Built to last, this humongous spacecraft will surely deliver your cookies to the deep ends of space, one day."	196
File:BlackSpaceshipNew.png	Dyson sphere	200	2.55 sextillion	Shipments are twice as efficient. "You've found a way to apply your knowledge of cosmic technology to slightly more local endeavors; this gigantic sphere of meta-materials, wrapping the solar system, is sure to kick your baking abilities up a notch."	301
File:SilverSpaceshipNew.png	The final frontier	250	2.55 septillion	Shipments are twice as efficient. "It's been a long road, getting from there to here. It's all worth it though - the sights are lovely and the oil prices slightly more reasonable."	314

Alchemy Lab

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:FlaskNew.png	Antimony	1	750 billion	Alchemy labs gain +100 base CpS. "Actually worth a lot of mony."	22
File:PinkFlaskNew.png	Essence of dough	5	3.75 trillion	Alchemy labs are twice as efficient. "Extracted through the 5 ancient steps of alchemical baking."	23
File:CyanFlaskNew.png	True chocolate	25	37.5 trillion	Alchemy labs are twice as efficient. "The purest form of cacao."	24
File:OrangeFlaskNew.png	Ambrosia	50	3.75 quadrillion	Alchemy labs are twice as efficient. "Adding this to the cookie mix is sure to make them even more addictive! Perhaps dangerously so. Let's hope you can keep selling these legally."	49
File:GoldFlaskNew.png	Aqua crustulae	100	375 quadrillion	Alchemy labs are twice as efficient. "Careful with the dosing - one drop too much and you get muffins. And nobody likes muffins."	115
File:RustedFlaskNew.png	Origin crucible	150	37.5 quintillion	Alchemy labs are twice as efficient. "Built from the rarest of earths and located at the very deepest of the largest mountain, this legendary crucible is said to retain properties from the big-bang itself."	197
File:BlackFlaskNew.png	Theory of atomic fluidity	200	37.5 sextillion	Alchemy labs are twice as efficient. "Pushing alchemy to its most extreme limits, you find that everything is transmutable into anything else - lead to gold, mercury to water; more importantly, you realize that anything can -and should- be converted to cookies.	302
File:SilverFlaskNew.png	Beige goo	250	37.5 septillion	Alchemy labs are twice as efficient. "Well now you've done it. Good job. Very nice. That's 3 galaxies you've just converted into cookies. Good thing you can hop from universe to universe."	315

Portal

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:GalaxyNew.png	Ancient tablet	1	10 trillion	Portals gain +1,666 base CpS. "A strange slab of peanut brittle, holding an ancient cookie recipe. Neat!"	25
File:PinkGalaxyNew.png	Insane oatling workers	5	50 trillion	Portals are twice as efficient. "ARISE, MY MINIONS!"	26
File:CyanGalaxyNew.png	Soul bond	25	500 trillion	Portals are twice as efficient. "So I just sign up and get more cookies? Sure, whatever!"	27
File:OrangeGalaxyNew.png	Sanity dance	50	50 quadrillion	Portals are twice as efficient. "We can change if we want to. We can leave our brains behind."	50
File:GoldGalaxyNew.png	Brane transplant	100	5 quintillion	Portals are twice as efficient. "This refers to the practice of merging higher dimensional universes, or "branes", with our own, in order to facilitate transit (and harvesting of precious cookie dough)."	116
File:RustedGalaxyNew.png	Deity-sized portals	150	500 quintillion	Portals are twice as efficient. "It's almost like, say, an elder god could fit through this thing now. Hypothetically."	198
File:BlackGalaxyNew.png	End of times back-up plan	200	500 sextillion	Portals are twice as efficient. "Just in case, alright?"	303
File:SilverGalaxyNew.png	Maddening chants	250	500 septillion	Portals are twice as efficient. "A popular verse goes like so : "jau'hn madden jau'hn madden aeiouaeiouaeiou brbrbrbrbrbrbr""	316

Time Machine

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:PocketWatchNew.png	Flux capacitors	1	140 trillion	Time machines gain +9,876 base CpS. "Bake to the future."	28
File:PinkPocketWatchNew.png	Time paradox resolver	5	700 trillion	Time machines are twice as efficient. "No more fooling around with your own grandmother!"	29
File:CyanPocketWatchNew.png	Quantum conundrum	25	7 quadrillion	Time machines are twice as efficient. "There is only one constant, and that is universal uncertainty. Or is it?"	30
File:OrangePocketWatchNew.png	Causality enforcer	50	700 quadrillion	Time machines are twice as efficient. "What happened, happened."	51
File:GoldPocketWatchNew.png	Yestermorrow comparators	100	70 quintillion	Time machines are twice as efficient. "Fortnights into milleniums."	117
File:RustedPocketWatchNew.png	Far future enactment	150	7 sextillion	Time machines are twice as efficient. "The far future enactment authorizes you to delve deep into the future - where civilization has fallen and risen again, and cookies are plentiful."	199
File:BlackPocketWatchNew.png	Great loop hypothesis	200	7 septillion	Time machines are twice as efficient. "What if our universe is just one instance of an infinite cycle? What if, before and after it, stretched infinite amounts of the same universe, themselves containing infinite amounts of cookies?"	199
File:SilverPocketWatchNew.png	Cookietopian moments of maybe	250	7 octillion	Time machines are twice as efficient. "Reminiscing how things could have been, should have been, will have been."	317

Antimatter Condenser

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:ParticlesNew.png	Sugar bosons	1	1.7 quadrillion	Antimatter condensers are twice as efficient. "Sweet firm bosons."	99
File:PinkParticlesNew.png	String theory	5	8.5 quadrillion	Antimatter condensers are twice as efficient. "Reveals new insight about the true meaning of baking cookies (and, as a bonus, the structure of the universe)."	100
File:CyanParticlesNew.png	Large macaron collider	25	85 quadrillion	Antimatter condensers are twice as efficient. "How singular!"	101
File:OrangeParticlesNew.png	Big bang bake	50	8.5 quintillion	Antimatter condensers are twice as efficient. "And that's how it all began."	102
File:GoldParticlesNew.png	Reverse cyclotrons	100	850 quintillion	Antimatter condensers are twice as efficient. "These can uncollision particles and unspin atoms. For... uh... better flavor, and stuff."	118
File:RustedParticlesNew.png	Nanocosmics	150	85 sextillion	Antimatter condensers are twice as efficient. "The theory of nanocosmics posits that each subatomic particle is in fact its own self-contained universe, holding unfathomable amounts of energy."	200
File:BlackParticlesNew.png	The Pulse	200	85 septillion	Antimatter condensers are twice as efficient. "You've tapped into the very pulse of the cosmos, a timeless rhythm along which every material and antimaterial thing beats in unison. This, somehow, means more cookies."	305
File:SilverParticlesNew.png	Some other super-tiny fundamental particle? Probably?	250	85 octillion	Antimatter condensers are twice as efficient. "When even the universe is running out of ideas, that's when you know you're nearing the end."	318

Prism

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:PrismNew.png	Gem Polish	1	21 quadrillion	Prisms gain +1 million base CpS. "Get rid of the grime and let more light in. Truly, truly outrageous."	175
File:PinkPrismNew.png	9th Color	5	105 quadrillion	Prisms are twice as efficient. "Delve into the untouched optical depths where even the mantis shrimp hasn't set an eye!"	176
File:CyanPrismNew.png	Chocolate Light	25	1.05 quintillion	Prisms are twice as efficient. "Bask into its cocoalesence. (Warning : may cause various interesting albeit deadly skin conditions.)"	177
File:OrangePrismNew.png	Grainbow	50	105 quintillion	Prisms are twice as efficient. "Remember the different grains using the handy Roy G. Biv mnemonic : R is for rice, O is for Oats... uh, B for barley?..."	178
File:GoldPrismNew.png	Pure Cosmic Light	100	10.5 sextillion	Prisms are twice as efficient. "Your prisms now receive pristine unadulterated photons from the other end of the universe."	179
File:RustedPrismNew.png	Glow-in-the-dark	150	1.05 septillion	Prisms are twice as efficient. "Your prisms now glow in the dark, effectively doubling their output."	201
File:BlackPrismNew.png	Lux sanctorum	200	1.05 octillion	Prisms are twice as efficient. "Your prism attendants have become increasingly mesmerized with something in the light - or maybe something beyond it; beyond us all, perhaps?"	306
File:SilverPrismNew.png	Reverse shadows	250	1.05 nonillion	Prisms are twice as efficient. "Oh man, this is really messing with your eyes."	319

Grandma types

Icon	Name	Quantity Needed	Base price (cookies)	Description	ID
File:GrandmaAchieveNew.png	Farmer grandmas	15 farms and 1 grandma	55,000	Grandmas are twice as efficient. Farms gain +1% CpS per grandma. "A nice farmer to grow more cookies."	57
	Miner grandmas	15 mines and 1 grandma	600,000	Grandmas are twice as efficient. Mines gain +1% CpS per 2 grandmas. "A nice miner to dig more cookies."	58
	Worker grandmas	15 factories and 1 grandma	6.5 million	Grandmas are twice as efficient. Factories gain +1% CpS per 3 grandmas. "A nice worker to manufacture more cookies."	59
	Banker Grandmas	15 banks and 1 grandma	70 million	Grandmas are twice as efficient. Banks gain +1% CpS per 4 grandmas "A nice banker to cash in more cookies"	250
	Priestess Grandmas	15 temples and 1 grandma	1 billion	Grandmas are twice as efficient. Temples gain +1% CpS per 5 grandmas. "A nice priestess to praise the great Baker in the sky."	251
	Witch grandmas	15 wizard towers and 1 grandma	16.5 billion	Grandmas are twice as efficient. Wizard towers gain +1% CpS per 6 grandmas. "A nice witch to cast a zip, and a zoop, and poof! Cookies."	252
	Cosmic grandmas	15 shipments and 1 grandma	255 billion	Grandmas are twice as efficient. Shipments gain +1% CpS per 7 grandmas. "A nice thing to... uh... cookies."	60
	Transmuted grandmas	15 alchemy labs and 1 grandma	3.75 trillion	Grandmas are twice as efficient. Alchemy labs gain +1% CpS per 8 grandmas. "A nice golden grandma to convert into more cookies."	61
	Altered grandmas	15 portals and 1 grandma	50 trillion	Grandmas are twice as efficient. Portals gain +1% CpS per 9 grandmas. "a NiCe GrAnDmA tO bA##########"	62
	Grandmas' grandmas	15 time machines and 1 grandma	700 trillion	Grandmas are twice as efficient. Time machines gain +1% CpS per 10 grandmas. "A nice grandma's nice grandma to bake double the cookies."	63
	Antigrandmas	15 antimatter condensers and 1 grandma	8.5 quadrillion	Grandmas are twice as efficient. Antimatter condensers gain +1% CpS per 11 grandmas. "A mean antigrandma to vomit more cookies. (Do not put in contact with normal grandmas; loss of matter may occur.)"	103
	Rainbow grandmas	15 prisms and 1 grandma	105 quadrillion	Grandmas are twice as efficient. Prisms gain +1% CpS per 12 grandmas. "A luminous grandma to sparkle into cookies."	180

Synergies

Icon	Name	Unlocked at	Base price (cookies)	Description	ID
File:SynergyWateringCan.png	Future almanacs	15 Farms, 15 Time machines and "Synergies Vol. I" purchased	28 quadrillion	Farms gain +5% CpS per time machine. Time machines gain +0.1% CpS per farm. "Lets you predict optimal planting times. It's crazy what time travel can do!"	369
	Rain prayer	75 Farms, 75 Temples and "Synergies Vol. II" purchased	40.022 quadrillion	Farms gain +5% CpS per temple. Temples gain +0.1% CpS per farm. "A deeply spiritual ceremonial involving complicated dance moves and high-tech cloud-busting lasers."	370
File:SynergyPick.png	Seismic magic	15 Mines, 15 Wizard towers and "Synergies Vol. I" purchased	660.24 billion	Mines gain +5% CpS per wizard tower. Wizard towers gain +0.1% CpS per mine. "Surprise earthquakes are an old favorite of wizardly frat houses."	371
	Asteroid mining	75 Mines, 75 Shipments and "Synergies Vol. II" purchased	10.2 quintillion	Mines gain +5% CpS per shipment. Shipments gain +0.1% CpS per mine. "As per the 1974 United Cosmic Convention, comets, moons, and inhabited planetoids are no longer legally excavatable. But hey, a space bribe goes a long way."	372
File:SynergyGears.png	Quantum electronics	15 Factories, 15 Antimatter condensers and "Synergies Vol. I" purchased	340 quadrillion	Factories gain +5% CpS per antimatter condenser. Antimatter condensers gain +0.1% CpS per factory. "Your machines won't even be sure if they're on or off!"	373
	Temporal overclocking	75 Factories, 75 Time machines and "Synergies Vol. II" purchased	28 sextillion	Factories gain +5% CpS per time machine. Time machines gain +0.1% CpS per factory. "Introduce more quickitude in your system for increased speedation of fastness."	374
File:SynergySack.png	Contracts from beyond	15 Banks, 15 Portals and "Synergies Vol. I" purchased	2 quadrillion	Banks gain +5% CpS per portal. Portals gain +0.1% CpS per bank. "Make sure to read the fine print!"	375
	Printing presses	75 Banks, 75 Factories and "Synergies Vol. II" purchased	5.4 quadrillion	Factories gain +5% CpS per bank. Banks gain +0.1% CpS per factory. "Fake bills so real, they're almost worth the ink they're printed with."	376
File:SynergyIdol.png	Paganism	15 Temples, 15 Portals and "Synergies Vol. I" purchased	2 quadrillion	Temples gain +5% CpS per portal. Portals gain +0.1% CpS per temple. "Some deities are better left unworshipped."	377
	God particle	75 Temples, 75 Antimatter condensers and "Synergies Vol. II" purchased	340 sextillion	Temples gain +5% CpS per antimatter condenser. Antimatter condensers gain +0.1% CpS per temple. "Turns out God is much tinier than we thought, I guess."	378
File:SynergyHat.png	Arcane knowledge	15 Wizard towers, 15 Alchemy labs and "Synergies Vol. I" purchased	156.6 trillion	Wizard towers gain +5% CpS per alchemy lab. Alchemy labs gain +0.1% CpS per wizard tower. "Some things were never meant to be known - only mildly speculated."	379
	Magical botany	75 Wizard towers, 75 Farms and "Synergies Vol. II" purchased	660.022 quadrillion	Farms gain +5% CpS per wizard tower. Wizard towers gain +0.1% CpS per farm. "Already known in some reactionary newspapers as "the wizard's GMOs"."	380
File:SynergySpaceship.png	Fossil fuels	15 Mines, 15 Shipments and "Synergies Vol. I" purchased	10.2 trillion	Mines gain +5% CpS per shipment. Shipments gain +0.1% CpS per mine. "Somehow better than plutonium for powering rockets. Extracted from the fuels of ancient, fossilized civilizations."	381
	Shipyards	75 Factories, 75 Shipments and "Synergies Vol. II" purchased	10.203 quintillion	Factories gain +5% CpS per shipment. Shipments gain +0.1% CpS per factory. "Where carpentry, blind luck, and asbestos insulation unite to produce the most dazzling spaceships on the planet."	382
File:SynergyFlask.png	Primordial ores	15 Mines, 15 Alchemy labs and "Synergies Vol. I" purchased	150 trillion	Mines gain +5% CpS per alchemy lab. Alchemy labs gain +0.1% CpS per mine. "Only when refining the purest metals will you extract the sweetest sap of the earth."	383
	Gold fund	75 Banks, 75 Alchemy labs and "Synergies Vol. II" purchased	150.028 quintillion	Banks gain +5% CpS per alchemy lab. Alchemy labs gain +0.1% CpS per bank. "If gold is the backbone of the economy, cookies, surely, are its hip joints."	384
File:SynergyGalaxy.png	Infernal crops	15 Farms, 15 Portals and "Synergies Vol. I" purchased	2 quadrillion	Farms gain +5% CpS per portal. Portals gain +0.1% CpS per farm. "Sprinkle regularly with FIRE."	385
	Abysmal glimmer	75 Prisms, 75 Portals and "Synergies Vol. II" purchased	4.22 septillion	Portals gain +5% CpS per prism. Prisms gain +0.1% CpS per portal. "Someone, or something, is staring back at you. Perhaps at all of us."	386
File:SynergyPocketWatch.png	Relativistic parsec-skipping	15 Shipments, 15 Time machines and "Synergies Vol. I" purchased	28.102 quadrillion	Shipments gain +5% CpS per time machine. Time machines gain +0.1% CpS per shipment. "People will tell you this isn't physically possible. These are people you don't want on your ship."	387
	Primeval glow	75 Prisms, 75 Time machines and "Synergies Vol. II" purchased	4.48 septillion	Time machines gain +5% CpS per prism. Prisms gain +0.1% CpS per time machine. "From unending times, an ancient light still shines, impossibly pure and fragile in its old age."	388
File:SynergyParticles.png	Extra physics funding	15 Banks, 15 Antimatter condensers and "Synergies Vol. I" purchased	340 quadrillion	Banks gain +5% CpS per antimatter condenser. Antimatter condensers gain +0.1% CpS per bank. "Time to put your money where your particle colliders are."	389
	Chemical proficiency	75 Alchemy labs, 75 Antimatter condensers and "Synergies Vol. II" purchased	341.5 sextillion	Alchemy labs gain +5% CpS per antimatter condenser. Antimatter condensers gain +0.1% CpS per alchemy lab. "Discover exciting new elements, such as Fleshmeltium, Inert Shampoo Byproduct #17 and Carbon++!"	390
File:SynergyPrism.png	Light magic	15 Wizard towers, 15 Prisms and "Synergies Vol. I" purchased	4.2 quintillion	Wizard towers gain +5% CpS per prism. Prisms gain +0.1% CpS per wizard tower. "Actually not to be taken lightly! No, I'm serious. 178 people died last year. You don't mess around with magic."	391
	Mystical energies	75 Temples, 75 Prisms and "Synergies Vol. II" purchased	4.2 septillion	Temples gain +5% CpS per prism. Prisms gain +0.1% CpS per temple. "Something beckons from within the light. It is warm, comforting, and apparently the cause for several kinds of exotic skin cancers."	392

Income-multiplier Upgrades

These 102 upgrades contribute to a multiplier of the cookie income, which is the total output of all the buildings equipped with their respective upgrades. The income-multiplier upgrades are a mid-game to end-game feature because they become very expensive.

Flavored Cookies

Flavored cookies add an amount to the base multiplier, which starts at 100%. These bonuses do not stack multiplicatively; namely, each upgrade adds a fixed amount to the base multiplier. Any multipliers from heavenly chips are treated in the same way as flavored cookies in that they are added as fixed amounts to the same total.

Icon	Name	Unlocked at	Base price (cookies)	Description	ID
File:PlainCookieNew.png	Plain cookies	50,000 cookies	999,999	Cookie production multiplier +1%. "Meh."	33
File:SugarCookieNew.png	Sugar cookies	250,000 cookies	5 million	Cookie production multiplier +1%. "Tasty, if a little unimaginative."	34
File:OatmealRaisinCookieNew.png	Oatmeal raisin cookies	500,000 cookies	10 million	Cookie production multiplier +1%. "No raisin to hate these."	35
File:PeanutButterCookieNew.png	Peanut butter cookies	2.5 million cookies	50 million	Cookie production multiplier +1%. "Get yourself some jam cookies!"	36
File:CoconutCookieNew.png	Coconut cookies	5 million cookies	100 million	Cookie production multiplier +1%. "These are *way* flaky."	37
File:WhiteChocolateCookieNew.png	White chocolate cookies	25 million cookies	500 million	Cookie production multiplier +2%. "I know what you'll say. It's just cocoa butter! It's not real chocolate! Oh please."	38
File:MacadamiaNutCookieNew.png	Macadamia nut cookies	50 million cookies	1 billion	Cookie production multiplier +2%. "They're macadamn delicious!"	39
File:DoubleChipCookieNew.png	Double-chip cookies	250 million cookies	5 billion	Cookie production multiplier +2%. "DOUBLE THE CHIPS DOUBLE THE TASTY (double the calories)"	40
File:WhiteChocolateMacadamiaNutCookieNew.png	White chocolate macadamia nut cookies	500 million cookies	10 billion	Cookie production multiplier +2%. "Orteil's favorite."	41
File:AllChocolateCookieNew.png	All-chocolate cookies	2.5 billion cookies	50 billion	Cookie production multiplier +2%. "CHOCOVERDOSE."	42
File:DarkChocolateCoatedCookieNew.png	Dark chocolate-coated cookies	5 billion cookies	100 billion	Cookie production multiplier +4%. "These absorb light so well you almost need to squint to see them."	55
File:WhiteChocolateCoatedCookieNew.png	White chocolate-coated cookies			Cookie production multiplier +4%. "These dazzling cookies absolutely glisten with flavor."	56
File:EclipseCookieNew.png	Eclipse cookies	25 billion cookies	500 billion	Cookie production multiplier +2%. "Look to the cookie."	80
File:ZebraCookieNew.png	Zebra cookies	50 billion cookies	1 trillion	Cookie production multiplier +2%. "..."	81
File:SnickerdoodleNew.png	Snickerdoodles	250 billion cookies	5 trillion	Cookie production multiplier +2%. "True to their name."	88
File:StroopwafelNew.png	Stroopwafels	500 billion cookies	10 trillion	Cookie production multiplier +2%. "If it ain't dutch, it ain't much."	89
File:MacaroonNew.png	Macaroons	2.5 trillion cookies	50 trillion	Cookie production multiplier +2%. "Not to be confused with macarons. These have coconut, okay?"	90
File:MadeleinesNew.png	Madeleines	25 trillion cookies	500 trillion	Cookie production multiplier +2%. "Unforgettable!"	104
File:PalmiersNew.png	Palmiers			Cookie production multiplier +2%. "Palmier than you!"	105
File:PaletsNew.png	Palets	50 trillion cookies	1 quadrillion	Cookie production multiplier +2%. "You could probably play hockey with these. I mean, you're welcome to try."	106
File:SablésNew.png	Sablés			Cookie production multiplier +2%. "The name implies they're made of sand. But you know better, don't you?"	107
File:CaramoasNew.png	Caramoas	500 trillion cookies and "Box of brand biscuits" purchased	10 quadrillion	Cookie production multiplier +3%. "Yeah. That's got a nice ring to it."	120
File:SagalongsNew.png	Sagalongs			Cookie production multiplier +3%. "Grandma's favorite?"	121
File:ShortfoilsNew.png	Shortfoils			Cookie production multiplier +3%. "Foiled again!"	122
File:WinMintsNew.png	Win mints			Cookie production multiplier +3%. "They're the luckiest cookies you've ever tasted!"	123
File:GingerbreadManNew.png	Gingerbread men	500 trillion cookies	10 quadrillion	Cookie production multiplier +2%. "You like to bite the legs off first, right? How about tearing off the arms? You sick monster."	150
File:GingerbreadTreeNew.png	Gingerbread trees			Cookie production multiplier +2%. "Evergreens in pastry form. Yule be surprised what you can come up with."	151
File:PureBlackChocolateCookieNew.png	Pure black chocolate cookies	2.5 quadrillion cookies	50 quadrillion	Cookie production multiplier +4%. "Dipped in a lab-made substance darker than the darkest cocoa (dubbed "chocoalate")."	256
File:PureWhiteChocolateCookieNew.png	Pure white chocolate cookies			Cookie production multiplier +4%. "Elaborated on the nano-scale, the coating on this biscuit is able to refract light even in a pitch-black environment."	257
File:LadyfingerNew.png	Ladyfingers	5 quadrillion cookies	100 quadrillion	Cookie production multiplier +3%. "Cleaned and sanitized so well you'd swear they're actual biscuits."	258
File:TuileNew.png	Tuiles	25 quadrillion cookies	500 quadrillion	Cookie production multiplier +3%. "These never go out of tile."	259
File:ChocolateStuffedBiscuitNew.png	Chocolate-stuffed biscuits	50 quadrillion cookies	1 quintillion	Cookie production multiplier +3%. "A princely snack! The holes are so the chocolate stuffing can breathe."	260
File:CheckerCookieNew.png	Checker cookies	250 quadrillion cookies	5 quintillion	Cookie production multiplier +3%. "A square cookie? This solves so many storage and packaging problems! You're a genius!"	261
File:ButterCookieNew.png	Butter cookies	500 quadrillion cookies	10 quintillion	Cookie production multiplier +3%. "These melt right off your mouth and into your heart. (Let's face it, they're rather fattening.)"	262
File:CreamCookieNew.png	Cream cookies	2.5 quintillion	50 quintillion	Cookie production multiplier +3%. "It's like two chocolate chip cookies! But brought together with the magic of cream! It's fiendishly perfect!"	263
File:GingersnapNew.png	Gingersnaps	5 quintillion cookies	100 quintillion	Cookie production multiplier +4%. "Cookies with a soul. Probably."	338
File:CinnamonCookieNew.png	Cinnamon cookies	25 quintillion cookies	500 quintillion	Cookie production multiplier +4%. "The secret is in the patented swirly glazing."	339
File:VanityCookieNew.png	Vanity cookies	50 quintillion cookies	1 sextillion	Cookie production multiplier +4%. "One tiny candied fruit sits atop this decadent cookie."	340
File:CigarNew.png	Cigars	250 quintillion cookies	5 sextillion	Cookie production multiplier +4%. "Close, but no match for those extravagant cookie straws they serve in coffee shops these days."	341
File:PinwheelCookieNew.png	Pinwheel cookies	500 quintillion cookies	10 sextillion	Cookie production multiplier +4%. "Bringing you the dizzying combination of brown flavor and beige taste!"	342
File:FudgeSquareNew.png	Fudge squares	2.5 sextillion cookies	50 sextillion	Cookie production multiplier +4%. "Not exactly cookies, but you won't care once you've tasted one of these. They're so good, it's fudged-up!"	343
File:ShortbreadBiscuitNew.png	Shortbread biscuits	5 sextillion cookies	100 sextillion	Cookie production multiplier +4%. "These rich butter cookies are neither short, nor bread. What a country!"	350
File:Millionaires'ShortbreadNew.png	Millionaires' shortbreads	25 sextillion cookies	500 sextillion	Cookie production multiplier +4%. "Three thought-provoking layers of creamy chocolate, hard-working caramel and crumbly biscuit in a poignant commentary of class struggle."	351
File:CaramelCookieNew.png	Caramel cookies	50 sextillion cookies	Cookie production multiplier +4%. "The polymerized carbohydrates adorning these cookies are sure to stick to your teeth for quite a while."	352
File:EmpireBiscuitNew.png	Empire biscuits	5 trillion cookies	100 trillion	Cookie production multiplier +2%. "For your growing cookie empire, of course!"	92
File:BritishTeaBiscuitNew.png	British tea biscuits	5 trillion cookies and "Tin of british tea biscuits" purchased		Cookie production multiplier +2%. "Quite."	93
File:ChocolateBritishTeaBiscuitNew.png	Chocolate british tea biscuits	5 trillion cookies and "British tea biscuits" purchased		Cookie production multiplier +2%. "Yes, quite."	94
File:RoundBritishTeaBiscuitNew.png	Round british tea biscuits	5 trillion cookies and "Chocolate british tea biscuits" purchased		Cookie production multiplier +2%. "Yes, quite riveting."	95
File:RoundChocolateBritishTeaBiscuitNew.png	Round chocolate british tea biscuits	5 trillion cookies and "Round british tea biscuits" purchased		Cookie production multiplier +2%. "Yes, quite riveting indeed."	96
File:RoundBritishTeaBiscuitWithHeartMotifNew.png	Round british tea biscuits with heart motif	5 trillion cookies and "Round chocolate british tea biscuits" purchased		Cookie production multiplier +2%. "Yes, quite riveting, old chap."	97
File:RoundChocolateBritishTeaBiscuitWithHeartMotifNew.png	Round chocolate british tea biscuits with heart motif	5 trillion cookies and "Round british tea biscuits with heart motif" purchased		Cookie production multiplier +2%. "I like cookies."	98
File:FigGluttonNew.png	Fig gluttons	250 trillion cookies and "Box of brand biscuits" purchased	5 quadrillion	Cookie production multiplier +2%. "Got it all figured out."	125
File:LoreolsNew.png	Loreols			Cookie production multiplier +2%. "Because, uh... they're worth it?"	126
File:JaffaCakeNew.png	Jaffa cakes			Cookie production multiplier +2%. "If you want to bake a cookie from scratch, you must first build a factory."	127
File:Grease'sCupNew.png	Grease's cups			Cookie production multiplier +2%. "Extra-greasy peanut butter."	128
File:DigitNew.png	Digits			Cookie production multiplier +2%. "Three flavors, zero phalanges."	344
File:ButterHorseshoeNew.png	Butter horseshoes	5 sextillion cookies and "Tin of butter cookies" purchased	100 sextillion	Cookie production multiplier +4%. "It would behoove you to not overindulge in these."	345
File:ButterPuckNew.png	Butter pucks	25 sextillion cookies and "Tin of butter cookies" purchased	500 sextillion	Cookie production multiplier +4%. "Lord, what fools these mortals be! (This is kind of a hokey reference.)"	346
File:ButterKnotNew.png	Butter knots	50 sextillion cookies and "Tin of butter cookies" purchased	1 septillion	Cookie production multiplier +4%. "Look, you can call these pretzels if you want, but you'd just be fooling yourself, wouldn't you?"	347
File:ButterSlabNew.png	Butter slabs	250 sextillion cookies and "Tin of butter cookies" purchased	5 septillion	Cookie production multiplier +4%. "Nothing better than a slab in the face."	348
File:ButterSwirlNew.png	Butter swirls	500 sextillion cookies and "Tin of butter cookies" purchased	10 septillion	Cookie production multiplier +4%. "These are equal parts sugar, butter, and warm fuzzy feelings - all of which cause millions of deaths everyday."	349
File:RoseMacaronNew.png	Rose Macarons	500 cookies and "Box of macarons" purchased	9,999	Cookie production multiplier +3%. "Although an odd flavor, these pastries recently rose in popularity."	202
File:LemonMacaronNew.png	Lemon Macarons	500,000 cookies and "Box of macarons" purchased	10 million	Cookie production multiplier +3%. "Tastefully sour, delightful treats."	203
File:ChocolateMacaronNew.png	Chocolate Macarons	500 million cookies and "Box of macarons" purchased	10 billion	Cookie production multiplier +3%. "They're like tiny sugary burgers!"	204
File:PistachioMacaronNew.png	Pistachio Macarons	500 billion cookies and "Box of macarons" purchased	10 trillion	Cookie production multiplier +3%. "Pistachio shells now removed after multiple complaints."	205
File:HazelnutMacaronNew.png	Hazelnut Macarons	500 trillion cookies and "Box of macarons" purchased	10 quadrillion	Cookie production multiplier +3%. "These go especially well with coffee."	206
File:VioletMacaronNew.png	Violet Macarons	500 quadrillion cookies and "Box of macarons" purchased	10 quintillion	Cookie production multiplier +3%. "It's like spraying perfume into your mouth!"	207
File:CaramelMacaronNew.png	Caramel Macarons	500 quintillion cookies and "Box of macarons" purchased	10 sextillion	Cookie production multiplier +3%. "The saltiest, chewiest of them all."	230
File:LicoriceMacaronNew.png	Licorice Macarons	500 sextillion cookies and "Box of macarons" purchased	10 septillion	Cookie production multiplier +3%. "Also known as "blackarons"."	231
File:SkullCookieNew.png	Skull cookies	5% or 56.26% chance from exploding a Wrinkler during Halloween Season	444.444 billion	Cookie production multiplier +2%. "Wanna know something spooky? You've got one of these inside your head RIGHT NOW."	134
File:GhostCookieNew.png	Ghost cookies			Cookie production multiplier +2%. "They're something strange, but they look pretty good!"	135
File:BatCookieNew.png	Bat cookies			Cookie production multiplier +2%. "The cookies this town deserves."	136
File:SlimeCookieNew.png	Slime cookies			Cookie production multiplier +2%. "The incredible melting cookies!"	137
File:PumpkinCookieNew.png	Pumpkin cookies			Cookie production multiplier +2%. "Not even pumpkin-flavored. Tastes like glazing. Yeugh."	138
File:EyeballCookieNew.png	Eyeball cookies			Cookie production multiplier +2%. "When you stare into the cookie, the cookie stares back at you."	139
File:SpiderCookieNew.png	Spider cookies			Cookie production multiplier +2%. "You found the recipe on the web. They do whatever a cookie can."	140
File:ChristmasTreeBiscuitNew.png	Christmas tree biscuits	20% to 61.525% chance from finding a reindeer during Christmas Season	252.525 billion	Cookie production multiplier +2%. "Whose pine is it anyway?"	143
File:SnowflakeBiscuitNew.png	Snowflake biscuits			Cookie production multiplier +2%. "Mass-produced to be unique in every way."	144
File:SnowmanBiscuitNew.png	Snowman biscuits			Cookie production multiplier +2%. "It's frosted. Doubly so."	145
File:HollyBiscuitNew.png	Holly biscuits			Cookie production multiplier +2%. "You don't smooch under these ones. That would be the mistletoe (which, botanically, is a smellier variant of the mistlefinger)."	146
File:CandyCaneBiscuitNew.png	Candy cane biscuits			Cookie production multiplier +2%. "It's two treats in one! (Further inspection reveals the frosting does not actually taste like peppermint, but like mundane sugary frosting.)"	147
File:BellBiscuitNew.png	Bell biscuits			Cookie production multiplier +2%. "What do these even have to do with christmas? Who cares, ring them in!"	148
File:PresentBiscuitNew.png	Present biscuits			Cookie production multiplier +2%. "The prequel to future biscuits. Watch out!"	149
File:PureHeartBiscuitNew.png	Pure heart biscuits	50,000 cookies during Valentine's day season	1 million	Cookie production multiplier +2%. "Melty white chocolate that says "I *like* like you"."	169
File:ArdentHeartBiscuitsNew.png	Ardent heart biscuits	50 million cookies and "Pure heart biscuits" purchased during Valentine's day season	1 billion	Cookie production multiplier +2%. "A red hot cherry biscuit that will nudge the target of your affection in interesting directions."	170
File:SourHeartBiscuitNew.png	Sour heart biscuits	50 billion cookies and "Ardent heart biscuits" purchased during Valentine's day season	1 trillion	Cookie production multiplier +2%. "A bitter lime biscuit for the lonely and the heart-broken."	171
File:WeepingHeartBiscuitNew.png	Weeping heart biscuits	50 trillion cookies and "Sour heart biscuits" purchased during Valentine's day season	1 quadrillion	Cookie production multiplier +2%. "An ice-cold blueberry biscuit, symbol of a mending heart."	172
File:GoldenHeartBiscuitNew.png	Golden heart biscuits	50 quadrillion cookies and "Weeping heart biscuits" purchased during Valentine's day season	1 quintillion	Cookie production multiplier +2%. "A beautiful biscuit to symbolize kindness, true love, and sincerity."	173
File:EternalHeartBiscuitNew.png	Eternal heart biscuits	50 quintillion cookies and "Golden heart biscuits" purchased during Valentine's day season	1 sextillion	Cookie production multiplier +2%. "Silver icing for a very special someone you've liked for a long, long time."	174
File:DragonCookie.png	Dragon cookie	"Bake dragon cookie" dragon training	70 quadrillion	Cookie production multiplier +5%. "Imbued with the vigor and vitality of a full-grown cookie dragon, this mystical cookie will embolden your empire for the generations to come."	330
File:MilkChocolateButterBiscuit.png	Milk chocolate butter biscuit	100 of every building	1 sextillion	Cookie production multiplier +10%. "Rewarded for owning 100 of everything. It bears the engraving of a fine entrepreneur."	334
File:DarkChocolateButterBiscuit.png	Dark chocolate butter biscuit	150 of every building	1 septillion	Cookie production multiplier +10%. "Rewarded for owning 150 of everything. It is adorned with the image of an experienced cookie tycoon."	335
File:WhiteChocolateButterBiscuit.png	White chocolate butter biscuit	200 of every building	1 octillion	Cookie production multiplier +10%. "Rewarded for owning 200 of everything. The chocolate is chiseled to depict a masterful pastry magnate."	336
File:RubyChocolateButterBiscuit.png	Ruby chocolate butter biscuit	250 of every building	1 nonillion	Cookie production multiplier +10%. "Rewarded for owning 250 of everything. Covered in a rare red chocolate, this biscuit is etched to represent the face of a cookie industralist made mad with power."	337

Kitten Upgrades

Each kitten upgrade boosts the CpS multiplier by a percentage proportionate to the Milk amount and each upgrade's effect stacks with another multiplicatively. For example:

• Kitten helpers boost the CpS by 10% of the Milk amount. So with a Milk level of 150%, Kitten helpers will boost CpS by 115%
• Kitten workers boost the CpS by 12.5% of the Milk amount. With a Milk level of 150%, Kitten workers will boost CpS by 118.75%
• With both Kitten helpers and Kitten workers upgrades, CpS will be multiplied by 115% × 118.75% ≈ 1.365%

See Milk for more details.

Icon	Name	Unlocked at	Price (cookies)	Description	ID
File:Kitten Plain.png	Kitten helpers	13 Achievements (52% Milk)	9 million	You gain more CpS the more milk you have. "meow may I help you"	31
File:Kitten Berrylium.png	Kitten workers	25 Achievements (100% Milk)	9 billion	You gain more CpS the more milk you have. "meow meow meow meow"	32
File:Kitten Blueberrylium.png	Kitten engineers	50 Achievements (200% Milk)	90 trillion	You gain more CpS the more milk you have. "meow meow meow meow, sir"	54
File:Kitten Chalcedhoney.png	Kitten overseers	75 Achievements (300% Milk)	90 quadrillion	You gain more CpS the more milk you have. "my purrpose is to serve you, sir"	108
File:Kitten Buttergold.png	Kitten managers	100 Achievements (400% Milk)	900 quintillion	You gain more CpS the more milk you have. "that's not gonna paws any problems, sir"	187
File:Kitten Sugarmuck.png	Kitten accountants	125 Achievements (500% Milk)	900 sextillion	You gain more CpS the more milk you have. "business going great, sir"	320
File:Kitten Jetmint.png	Kitten specialists	150 Achievements (600% Milk)	900 septillion	You gain more CpS the more milk you have. "optimizing your workflow like whoah, sir"	321
File:Kitten Cherrysilver.png	Kitten experts	175 Achievements (700% Milk)	900 octillion	You gain more CpS the more milk you have. "10 years expurrrtise in the cookie business, sir"	322

Bingo Center/Research Facility

After you have the elder achievement and at least 7 different grandmas you are eligible to get the Bingo Center/Research Facility, which costs 100 billion cookies (as of version 1.0453). After you purchase it, it will research an upgrade with each research period taking 30 minutes without Persistent memory upgrade. HOWEVER: research time is based on frames, not minutes. The game naturally runs at 30fps. If you alter that to 5fps to reduce load on your CPU, upgrades will then take 3 hours. At 10fps they take 1 hour 30 minutes, at 20fps they take 45 minutes, and so on. Research on the next upgrade will not begin until the previously researched item has been purchased.

Research

Icon	Name	Price (cookies)	Description	ID
File:Bingo.png	Bingo center/Research facility	1 quadrillion	Grandma-operated science lab and leisure club. Grandmas are 4 times as efficient. Regularly unlocks new upgrades. "What could possibly keep those grandmothers in check?... Bingo."	64
File:Chips.png	Specialized chocolate chips	100 billion	[Research] Cookie production multiplier +1%. "Computer-designed chocolate chips. Computer chips, if you will."	65
File:Beans.png	Designer cocoa beans	200 billion	[Research] Cookie production multiplier +2%. "Now more aerodynamic than ever!"	66
File:Cookieclicker.png	Ritual rolling pins	400 billion	[Research] Grandmas are twice as efficient. "The result of years of scientific research!"	67
File:Ovens.png	Underworld ovens	800 billion	[Research] Cookie production multiplier +3%. "Powered by science, of course!"	68
File:Cookieclicker2.png	One mind	1.6 trilion	[Research] Each grandma gains +0.02 base Cps per grandma. Note: the grandmothers are growing restless. Do not encourage them. "We are one. We are many."	69
File:ExoticNuts.png	Exotic nuts	3.2 trilion	[Research] Cookie production multiplier +4%. "You'll go crazy over these!"	70
File:Brainsweep.png	Communal brainsweep	6.40 trilion	[Research] Each grandma gains another +0.02 base Cps per grandma. Note: proceeding any further in scientific research may have unexpected results. You have been warned. "We fuse. We merge. We grow."	71
	Arcane sugar	12.8 trillion	[Research] Cookie production multiplier +5%. "Tastes like insects, ligaments, and molasses."	72
	Elder Pact	25.6 trillion	[Research] Each grandma gains +0.05 base CpS per portal. Note: this is a bad idea. "squirm crawl slither writhe today we rise"	73

Elder Pledge

Icon	Name	Unlocked at	Price (cookies)	Description	ID
File:ElderPledge.png	Elder Pledge	Elder Pact bought	8n+1 (caps at 814)	[Repeatable] Contains the wrath of the elders, at least for a while. "This is simple ritual involving anti-aging cream, cookie batter mixed in the moonlight, and a live chicken."	74
	Elder Covenant	Elder Pledge bought once and Revoke Elder Covenant enabled	66.667 trillion	[Switch] Puts a permanent end to the elders' wrath, at the price of 5% of your CpS. "This is a complicated ritual involving silly, inconsequential trivialities such as cursed laxatives, century-old cacao, and an infant. Don't question it."	84
	Revoke Elder Covenant	Elder Covenant enabled	6.667 billion	[Switch] You will get 5% of your CpS back, but the grandmatriarchs will return. "we rise again"	85
File:Cookieclicker.png	Sacrificial rolling pins	Elder Pledge bought 10 times	2.889 trillion	Elder pledge lasts twice as long. "These are mostly for spreading the anti-aging cream. (and accessorily, shortening the chicken's suffering.)"	87

• You may notice that the price of the Sacrificial rolling pins has significantly changed, but this is not written in the changelog.
• Once Elder pledge is maxed out, you should buy the sacrificial rolling pins and keep using the pledge. Because the rewards from golden cookies are CPS reliant the elder covenant is never worth it. Untill 3.9*10^9 CPS the wrath cookies (red cookies) are the best because of the increased chance on getting a cookie chain. From 3.9*10^9 CPS onward pledge is the best option.
• If you are actively playing, enabling the Elder Pledge or Elder Covenant will remove the wrath cookies and their bad outcomes; if you have all of the golden cookie upgrades this will pay off for sure. But if you're not going to play for a good while (i.e. letting it idle overnight, or preferably a weekend) there's no benefit from pre-buying the Pledge or leaving the Covenant enabled, unless you want the Sacrificial Rolling Pins in the case of the former. Also, the wrinklers which spawn when you do not have the Pledge/Covenant enabled greatly increase your CPS.
• However, be careful that revoking the Covenant and then re-declaring it too soon doesn't covertly eat into your overall CpS. At the 3.05*10^9 CpS breakpoint where Pledge and Covenant cost about the same, it may initially seem that you need just 37 minutes of idling to produce the cookies required to re-declare the Covenant after breaking it... but actually, it takes nearly 12 hours for the 5.26% bonus from breaking the Covenant to pay off. It takes longer still if your idle CpS is lower, or you haven't upgraded to Sacrificial Rolling Pins - potentially 24 hours or (much!) more. There still is no "intrinsic" bonus from leaving the Covenant in place, but by doing so you avoid the 66.67 trillion overall cost of breaking and re-declaring it, which can itself be very valuable. (Mind that there is no such hidden downside to not buying an additional Pledge - unless you are angling for the "Upgrader" achievement - as they remain a one-shot "upgrade" at all levels). However you should not buy the Covenant except for the achievement or if you are too lazy to click the elder pledge every hour.
• Note that as of v1.037 (beta), the price cap for the Elder Pledge increases eight-fold, to about 4 trillion cookies; this will of course impact on the calculations above and whether you are better off buying the Covenant or not. EG the "3.05 Gcps breakpoint" will shift upwards to about 24.4 Gcps instead, or approximately the idle production level of a no-reset, 100 Antimatter Condenser endgame.

Other Upgrades

Clicking Upgrades

Icon	Name	Unlocked at	Price (cookies)	Description	ID
File:WhiteArrow.png	Plastic mouse	1,000 hand-made cookies	50,000	Clicking gains +1% of your CpS. "Slightly squeaky."	75
	Iron mouse	100,000 hand-made cookies	5 million	Clicking gains +1% of your CpS. "Click like it's 1,349!"	76
	Titanium mouse	10 million hand-made cookies	500 million	Clicking gains +1% of your CpS. "Heavy, but powerful."	77
	Adamantium mouse	1 billion hand-made cookies	50 billion	Clicking gains +1% of your CpS. "You could cut diamond with these."	78
	Unobtainium mouse	100 billion hand-made cookies	5 trillion	Clicking gains +1% of your CpS. "These nice mice should suffice."	119
File:Ach clickgeddon.png	Eludium Mouse	10 trillion hand-made cookies	500 trillion	Clicking gains +1% of your CpS.. "I rodent do that if I were you."	190
	Wishalloy Mouse	1 quadrillion (1015) hand-made cookies	50 quadrillion	Clicking gains +1% of your CpS.. "Clicking is fine and dandy, but don't smash your mouse over it. Get your game on. Go play."	191
	Fantasteel Mouse	100 quadrilion hand-made cookies	5 quintilion	Clicking gains +1% of your CpS.. "You could be clicking using your touchpad and we'd benone the wiser ."
	Nevercrack Mouse	10 quintillion hand-made cookies	50 quintilion	Clicking gains +1% of your CpS.. "How much beefier can you make a mouse until it's considered a rat?"

Golden Cookie Upgrades

Icon	Name	Unlocked at	Price (cookies)	Description	ID
	Lucky day	7 Golden Cookies	777.778 million	Golden cookies appear twice as often and last twice as long on screen. "Oh hey, a four-leaf penny!"	52
	Serendipity	27 Golden Cookies	77.778 billion	Golden cookies appear twice as often and last twice as long on screen. "What joy! Seven horseshoes!"	53
	Get lucky	77 Golden Cookies	77.778 trillion	Golden cookie effects last twice as long. "You've been up all night, haven't you?"	86

Heavenly Chips Upgrades

Icon	Name	Unlocked at	Price (cookies)	Description	ID
File:Heavenly chip secret.png	Heavenly chip secret	1 heavenly chip	11	Unlocks 5% of the potential of your heavenly chips. "Grants the knowledge of heavenly chips, and how to use them to make baking more efficient. It's a secret to everyone."	129
	Heavenly cookie stand	Heavenly chip secret purchased	1,111	Unlocks 25% of the potential of your heavenly chips. "Don't forget to visit the heavenly lemonade stand afterwards."	130
	Heavenly bakery	Heavenly cookie stand purchased	111,111	Unlocks 50% of the potential of your heavenly chips. "Also sells godly cakes and divine pastries."	131
	Heavenly confectionery	Heavenly bakery purchased	11.111 million	Unlocks 75% of the potential of your heavenly chips. "They say angel bakers work there. They take angel lunch breaks and sometimes go on angel strikes."	132
	Heavenly key	Heavenly confectionery purchased	1.111 billion	Unlocks 100% of the potential of your heavenly chips. "This is the key to the pearly (and tasty) gates of pastry heaven, granting you access to your entire stockpile of heavenly chips. May you use them wisely."	133

Christmas Santa Upgrades

Icon	Name	Unlocked at	Price (cookies)	Description	ID
	A festive hat	25 cookies and Christmas	25	Unlocks... something. "Not a creature was stirring, not even a mouse."	152
File:Increased merriness.png	Increased merriness	purchasing A festive hat or a Santa upgrade	2,525	Cookie production multiplier +15%. "It turns out that the key to increased merriness, strangely enough, happens to be a good campfire and some s'mores. You know what they say, after all; the s'more, the merrier."	153
File:Increased merriness.png	Improved jolliness			Cookie production multiplier +15%. "A nice wobbly belly goes a long way. You jolly?"	154
	A lump of coal			Cookie production multiplier +1%. "Some of the world's worst stocking stuffing. I guess you could try starting your own little industrial revolution, or something?..."	155
	An itchy sweater			Cookie production multiplier +1%. "You don't know what's worse : the embarrassingly quaint "elf on reindeer" motif, or the fact that wearing it makes you feel like you're wrapped in a dead sasquatch.	156
File:Reindeer.png	Reindeer baking grounds			Reindeer appear twice as frequently. "Male reindeer are from Mars; female reindeer are from venison."	157
File:Reindeer.png	Weighted sleighs			Reindeer are twice as slow. "Hope it was worth the weight. (Something something forced into cervidude)"	158
File:Reindeer.png	Ho ho ho-flavored frosting			Reindeer give twice as much. "It's time to up the antler."	159
File:Season savings.png	Season savings			All buildings are 1% cheaper. "By Santa's beard, what savings. But who will save us?"	160
File:Season savings.png	Toy workshop			All upgrades are 5% cheaper. "Watch yours-elf around elvesdroppers who might steal our production secrets. Or elven worse!"	161
	Naughty list			Grandmas are twice as productive. "This list contains every unholy deed perpetuated by grandmakind. He won't be checking this one twice. Once. Once is enough."	162
	Santa's bottomless bag			Random drops are 10% more common. "This is one bottom you can't check out."	163
	Santa's helpers			Clicking is 10% more powerful. "Some choose to help hamburger; some choose to help you. To each their own, I guess."	164
	Santa's legacy			Cookie production multiplier +10% per Santa's levels. "In the north pole, you gotta get the elves first. Then when you get the elves, you start making the toys. Then when you get the toys... then you get the cookies."	165
	Santa's milk and cookies			Milk is 5% more powerful. "Part of Santa's dreadfully unbalanced diet."	166
File:SantasDominion.png	Santa's dominion	Reach the final stage of Santa	2.525 quadrillion	Cookie production multiplier +50%. All buildings are 1% cheaper. All upgrades are 2% cheaper.* "My name is Claus, king of kings; Look on my toys, ye Mighty, and despair!"	168

See the discussion on milk above for the details of Santa's Milk and Cookies.

Easter Egg Upgrades

List of Upgrades that are from the Easter Season. All upgrades are egg/larvae based in theme and can be unlocked randomly when clicking a golden/wrath cookie or popping a wrinkler.

Icon	Name	Unlocked at	Price (cookies)	Description	ID
File:Easter chicken egg.png	Chicken egg	"Common" eggs (see Probabilities).	1 trillion	Cookie production global multiplier +1%. "The egg. The egg came first. Get over it."	210
File:Easter duck egg.png	Duck egg			Cookie production global multiplier +1%. "Then he waddled away."	211
File:Easter turkey egg.png	Turkey egg			Cookie production global multiplier +1%. "These hatch into strange, hand-shaped creatures."	212
File:Easter quail egg.png	Quail egg			Cookie production global multiplier +1%. "These eggs are positively tiny. I mean look at them. How does this happen? Whose idea was that?"	213
File:Easter robin egg.png	Robin egg			Cookie production global multiplier +1%. "Holy azure-hued shelled embryos!"	214
File:Easter ostrich egg.png	Ostrich egg			Cookie production global multiplier +1%. "One of the largest eggs in the world. More like ostrouch, am I right? Guys?"	215
	Cassowary egg			Cookie production global multiplier +1%. "The cassowary is taller than you, possesses murderous claws and can easily outrun you. You'd do well to be casso-wary of them."	216
File:Easter salmon roe.png	Salmon roe			Cookie production global multiplier +1%. "Do the impossible, see the invisible. Roe roe, fight the power?"	217
	Frogspawn			Cookie production global multiplier +1%. "I was going to make a pun about how these "toadally look like eyeballs", but froget it."	218
File:Easter shark egg.png	Shark egg			Cookie production global multiplier +1%. "HELLO IS THIS FOOD? LET ME TELL YOU ABOUT FOOD. WHY DO I KEEP EATING MY FRIENDS"	219
	Turtle egg			Cookie production global multiplier +1%. "Turtles, right? Hatch from shells. Grow into shells. What's up with that? Now for my skit about airplane food."	220
	Ant larva			Cookie production global multiplier +1%. "These are a delicacy in some countries, I swear. You will let these invade your digestive tract, and you will derive great pleasure from it. And all will be well"	221
File:Egg3.png	Golden goose egg	"Rare" eggs (see Probabilities).	100 trillion	Golden cookies appear 5% more often. "The sole vestige of a tragic tale involving misguided investments."	222
File:Easter faberge egg.png	Faberge egg			All buildings and upgrades are 1% cheaper. "This outrageous egg is definitely fab."	223
File:Egg6.png	Wrinklerspawn			Wrinklers explode into 5% more cookies. "Look at this little guy! It's going to be a big boy someday! Yes it is!"	224
File:Egg5.png	Cookie egg			Clicking is 10% more powerful.. "The shell appears to be chipped I wonder what's inside this one!"	225
File:Omelette egg.png	Omelette			Other eggs appear 10% more frequently. "Fromage not included."	226
File:Egg4.png	Chocolate egg			Contains a lot of cookies. "Laid by the elusive cocoa bird. There's a surprise inside!"	227
	Century egg			You gain more CpS the longer you've played in the current session. "Actually not centuries-old. This one isn't a day over 86!"	228
File:Egg.png	"egg"			+9 CpS. "hey, it's "egg""	229

The eggs contribute to a separate multiplier from the cookies, for a maximum potential of 22% bonus.

Season Switch Upgrades

Icon	Name	Unlocked at	Price (cookies)	Description	ID
File:SeasonSwitcher.png	Season switcher	10 trillion cookies and 5,000 heavenly chips	3.333 trillion	Allows you to trigger seasonal events at will, for a price. "There will always be time."	181
File:ChristmasTreeBiscuits.png	Festive biscuit	Season switcher purchased.	11.111 billion * 2n	Triggers Christmas season for the next 24 hours. Triggering another season will cancel this one. "'Twas the night before Christmas- or was it?"	182
File:GhostCookies.png	Ghostly biscuit			Triggers Halloween season for the next 24 hours. Triggering another season will cancel this one. "spooky scary skeletons will wake you with a boo"	183
File:Lovelycookies.png	Lovesick biscuit			Triggers Valentine's Day season for the next 24 hours. Triggering another season will cancel this one. "Romance never goes out of fashion"	184
File:FoolsBiscuit.png	Fool's biscuit			Triggers Business Day season for the next 24 hours. Triggering another season will cancel this one. "Business. Serious business. This is absolutely all of your business."	185
File:BunnyBiscuit.png	Bunny biscuit			Triggers Easter season for the next 24 hours. Triggering another season will cancel this one. "All the world will be your enemy and when they catch you, they will kill you... but first they must catch you."	209

Debug Upgrades

These upgrades are for debugging, and are not obtainable without cheating. For instruction on enabling these upgrades, refer to Cheating#Debug_Cheats.

Buying the upgrade Gold hoard might cause your game to freeze while using CookieCheat. When it freezes, reload the page.

Icon	Name	Price (cookies)	Description	ID
File:Ultrascience v2.png	Ultrascience	7	Research takes only 5 seconds. "YEAH, SCIENCE!"	79
File:Gold hoard.png	Gold hoard		Golden cookies appear really often. "That's entirely too many."	83
File:Neuromancy.png	Neuromancy		Can toggle upgrades on and off at will in the stats menu. "Can also come in handy to unsee things that can't be unseen."	91
File:Perfect idling.png	Perfect idling		You keep producing cookies even while the game is closed. "It's the most beautiful thing I've ever seen."	124
File:Wrinkler doormat.png	Wrinkler doormat		Wrinklers spawn much more frequently. "You're such a pushover."	142
File:Reindeer season.png	Reindeer season		Reindeer spawn much more frequently. "Go, Cheater! Go, Hacker and Faker!"	167
File:Eternal seasons.png	Eternal seasons		Seasons now last forever. "Season to taste."	186
File:Magic shenanigans.png	Magic shenanigans		Cookie production multiplied by 1,000. "It's magic. I ain't gotta explain sht"	208

Version History

An update note on August 25 said that the prices as well as the cookie/second boosts of different upgrades are subject to frequent change, since the game was an early release.

Version	Release date	New upgrades	Total upgrades
1.0	August 24th, 2013	79	79
1.02	August 25th, 2013	2	81
1.034	September 3rd, 2013	5	86
1.035	September 8th, 2013	7	93
1.036	September 15th, 2013	10	103
1.0375	October 1st, 2013	15	118
1.038	October 10th, 2013	9	127
1.039	October 29th, 2013	8	135
1.04	December 20th 2013	24	159
1.0402	December 20th 2013	1	160
1.0411	February 13th 2014	13	173
1.0418	April 9th 2014	17	190
1.0464	May 18th 2014	26	216
1.0501(beta)	Aug 25th 2014	28(34 prestige upgrade)	244(278 if prestige upgrade included)
2	Feb 8th 2016	75(+22 prestige upgrade)	319(375 if prestige upgrade included)

Note: The 1.037 beta has the same upgrades as the previous version.

Trivia

• Carpal tunnel prevention cream, and its flavor text "it...it hurts to click..." is a reference to the South Park episode "Make Love Not Warcraft".
• The flavor text for the Cursor upgrade called "Iron Mouse" ("Click like it's 1349!") is probably a reference to the black metal band called "1349," as well as a reference to the Prince song "1999" ("Party like it's 1999!"). Or it simply could be the fact that it is iron, commonly used in medieval devices.
• The flavor text for the Cursor upgrade called "Wishalloy Mouse" is a reference to the song "All Star" by Smash Mouth ("don't smash your mouse"), which lyrics include "Get your game on, go play."
• The flavor text for the Cursor upgrade called "Ambidextrous" ("Look ma, both hands!") is a play on the phrase, "Look ma, no hands!"
• The flavor text for the Cursor upgrade "Thousand Fingers" to "Quadrillion fingers" is a reference to Quagmire from Family Guy, who often says "Giggity" when he gets excited.
• The flavor text for the Cursor upgrade "Quintillion fingers" is the second half of a quote given by Boomhauer, a character of King of the Hill in an episode when he discusses navigating the Internet.
• The Mine upgrade "Ultimadrill"'s flavor text makes a reference to the anime Tengen Toppa Gurren Lagann with its quote "Pierce the heavens, etc...". The line "Your drill is the drill that will pierce the heavens" has been used in many other works since, predominantly internet memes.
• The Shipment upgrade "Warp Drive" and its flavor text "To boldly bake." are references to Star Trek.
• The Portal upgrade "Sanity Dance" and its flavor text are a reference to the '80s pop song "Safety Dance" by Men Without Hats and the lyric from that song "We can dance if we want to / We can leave your friends behind" (We can change if we want to, we can leave our brains behind).
• The use of Portals and the Altered Grandmas may be a reference to "Immaterium" from Warhammer 40,000, in which the minds and/or bodies of those who travel through it are significantly warped.
• The Time Machine upgrade "Flux Capacitors" and its flavor text are a reference to the Flux Capacitor in the Back to the Future trilogy.
• The flavor text for the Time Machine upgrade "Time paradox resolver", "No more fooling around with your own grandmother!" is a reference to the episode "Roswell That Ends Well" of the television series Futurama, wherein the character Fry has intercourse with his own grandmother when he goes back in time, and in doing so, becomes his own grandfather.
• The name of the Time Machine upgrade "Quantum Conundrum" may be a reference to the game of the same name.
• The previous flavor text of the Time Machine upgrade "Quantum Conundrum" ("It's full of stars!") and the flavor text of the Shipment upgrade "Chocolate Monoliths" ("My god. It's full of chocolate bars.") are references to the movie 2001: A Space Odyssey and its quote "My God! It's full of stars!". The name of the "Chocolate Monoliths" upgrade may be a reference to the mysterious objects 'Monoliths', which are the focus of the movie.
• The flavor text on the Time Machine upgrade "Causality Enforcer" is a reference to the movie The Matrix, shortly after they meet the causality program of the Matrix, when Morpheus says, "What happened, happened, and couldn't have happened any other way." It is also possible this is a reference to the television series, Lost, in which Daniel Faraday says the very same quote.
• The in-game sprite for the time machine strongly resembles the one from the 1960 movie, "The Time Machine", based on the classic H. G. Wells novel, and superficially the machines from other dramatizations of the same.
• The Antimatter Condenser upgrade "Large Macaron collider" is a reference to the Large Hadron Collider.
• Part of the flavor text for the Prism upgrade Gem Polish ("Truly, truly outrageous.") is a reference to the 1980s cartoon series Jem, specifically the opening theme. Some believe that it may also be a reference to the League of Legends champion, Taric, but in actual fact, this too is a reference to the theme from "Jem."
• The quote for the cookie upgrade "Eclipse Cookies" ("Look to the cookie.") is from a Seinfeld episode, "The Dinner Party", where Jerry orders an eclipse cookie. He explains to Elaine that they must 'look to the cookie' and all our race problems will be solved (this is referring to the black and white colors on the cookie, in harmony). It may also refer to a Mortal Kombat easter egg, "Look to la luna."
• The quote for the cookie upgrade "Madeleines" ("Unforgettable!") is a reference to the book In Search of Lost Time by Marcel Proust, in which madeleines are used to contrast involuntary memory with voluntary memory.
• The 4 cookies added in 1.036 - Madeleines, Palets, Palmiers and Sablés - are types of French biscuits, which may be a form of cheeky patriotism on Orteil's part.
• The 4 new cookie upgrades added in version 1.075, Caramoas, Sagalongs, Shortfoils and Win Mints, are based on Girl Scout cookies, referring to Samoas, Tagalongs, Trefoils, and Thin Mints respectively.
• The prices of the Kitten upgrades may be a reference to the common myth that cats have nine lives.
• The Mouse upgrade "Adamantium Mouse" is in reference to the fictitious metal of the same name in the Marvel Comics Universe and other popular media.
• The Mouse upgrade "Unobtainium mouse" references a hypothetical material.
• The title of the "Get Lucky" upgrade is a reference to the Daft Punk song of the same name. The flavor text even makes a reference to a section of the song's lyrics: "We're up all night to get lucky."
• The flavor text of the debug upgrade "Ultrascience" ("YEAH, SCIENCE!") may be a reference to a quote said by Jesse Pinkman in a Breaking Bad episode titled "A No-Rough-Stuff-Type Deal."
• The flavor text of the debug upgrade "Neuromancy" may be referring to the Grandmas of the Grandmapocalypse.
• The description of the upgrade Jaffa Cakes is a reference to a product of the same name introduced by the company McVitie's, and is a reference to Carl Sagan's quote "If you wish to make an apple pie from scratch, you must first invent the universe" from his book Cosmos. It could also be a reference to the YouTube channel "The Yogscast" where in a modded version of Minecraft called Tekkit, they created a factory to automatically make jaffa cakes.
• The flavor text of the "Heavenly chip secret" upgrade may be a reference to a quote from the original Legend of Zelda game for the NES- "It's a secret to everybody.'
• The name and flavor text of the "Loreols" upgrade is a reference to the L'Oréal brand and their slogan: "Because you're worth it.".
  • It also may be a reference to Oreo brand cookies.
• The name and flavor text of Grease's Cups is a reference to Reese's Peanut Butter Cups chocolate candy.
• Sextillion Fingers has been buffed; originally, it added 100 CpS each cursor for every non-cursor, like Quintillion Fingers, now it gives 200 CpS each cursor for every non-cursor.
• Communal Brainsweep may be a reference to the Brainsweeper enemy from that other well known browser game, Kingdom of Loathing (which is an abomination created "For Science!", similar to a lot of the Research Center upgrades); alternatively, it may refer instead - or as well - to Brainsweeping from the Mysterious Benedict Society novels, a drastic form of brainwashing which erases almost all of the subject's memories. In either case, it ain't good.
• The "Bat cookies" flavor text is a reference to the movie, "The Dark Knight" where Commissioner Gordon says that Batman is the hero that Gotham deserves.'.
• The "Eyeball cookies" flavor text is a reference to Nietzche's Beyond Good and Evil, aphorism 146.
• The "Spider cookies" flavor text is a reference to the theme song of '60s television series cartoon, Spider-Man: The Animated Series.
• The "Ghost cookies" flavor text is a reference to the Ghostbusters theme song.
• The "Christmas Tree Biscuits" quote, "Whose pine is it anyway?" is a reference to the popular comedy-improvisation show "Whose line is it anyway?" that ran in the late 80's to early 90's with both English and American versions.
• The flavor text of "Santa's Dominion" makes a reference to a poem of Ozymandias by Percy Bysshe Shelley. The poem's quote is "My name is Ozymandias, king of kings: Look on my works, ye Mighty, and despair!"
• The Weighted Sleighs upgrade's flavor text may possibly be a reference to a saying from Gabe Newell.
• It seems like even with upgrades that make other upgrades cheaper, you still need the original amount of cookies for upgrades to light up. This is only a visual bug, and you can still buy the upgrade even if it isn't brightened.
• When holding your cursor in the store and moving it quickly over the tooltip of an upgrade, the store window will minimize.
• The flavor text for the Christmas upgrade 'Increased merriness' ,'The s'more the merrier', is a play on the quote, "The more the merrier". A s'more is a roasted marshmallow sandwiched between two graham crackers.
• If the game is not in Christmas season, using the command 'Game.seasonPopup.spawn ()' will spawn a bouncing golden cookie instead of a reindeer.
• The flavor text for the Ghostly biscuit upgrade "spooky scary skeletons will wake you with a boo" is a reference to the Andrew Gold song "Spooky Scary Skeletons"
• The Prism upgrade Pure Cosmic Light was the only main building final upgrade to not have a blue sparkle in its sprite as of V1.0411 (fixed in 1.0418).
• The flavor text for the prism upgrade Grainbow, "Remember the different grains using the handy Roy G. Biv mnemonic" refers to the mnemonic Roy G. Biv, which actually is used to remember the seven colors of the rainbow.
• Starting with the version 1.0420, base cost of the Prism have been increased from 50 billion to 75 billion. As a result, cost for all prism-related upgrades (including "Rainbow Grandmas" upgrade) have been also increased 1.5 times.
• Вefore 1.0420, season updates couldn't be bought twice in a row (i.e. once the 24 hours are over, it becomes locked again, so you need to buy a different season before you can buy this one again).
• Starting with the version 1.0420, cost of "Kitten overseers" upgrade increased 100 times, from 900 trillion to 90 quadrillion, which makes it most significant upgrade cost increase both in absolute (89.9 quadrillion) and relative numbers at the moment. Next cost increase in absolute numbers to consider is "Pure Cosmic Light" — from 50 quadrillion to 75 quadrillion (as a result of Prism base cost increase from 50 billion to 75 billion which also happened in 1.0420; cost of efficiency increase upgrades for buildings is calculated based on building base price and tier multiplier common for all building types).
• The flavor text for Bunny biscuit is a reference to Watership Down's El-Ahrairah being blessed with being hard to catch.
• The flavor text for Duck Egg is a reference to the song, video, and book 'The Duck Song.'
• The flavor text for Robin Egg is a reference to the superhero Robin from the 1960's Batman TV show as he would often make exclamations following the same format.
• The flavor text for Salmon roe is a reference to the song 'Libera me from hell' from the anime 'Tengen Toppa Gurren Lagann.'
• The flavor text for Omelette "Omelette du fromage" is a reference to an episode of the cartoon show 'Dexter's Laboratory', when the main character (Dexter) repeats the same phrase over and over again.
• The "Aqua crustulae" upgrade name means "Water of cookie" in Latin, although in proper grammar this would be "Aqua crustuli" or "Aqua crustulorum". It's probably is a reference to Latin expression "Aqua vitae" that means "Water of life".
• The "Ardent heart biscuits" upgrade's flavor text probably have a reference to Red Hot Chili Peppers band.
• The "egg" bears a strong resemblance to Yoshi's eggs from Super Mario World, a normal pokemon egg from the game series "Pokémon" and a spawn egg from Minecraft. Orteil said that there's no any references in the "egg", though.