The prism is the fourteenth building, added in v1.041. It costs 2.1 quadrillion cookies. Each prism initially produces 2.9 billion CpS by converting light into cookies.


Prism achievements
Icon Name Description ID
PrismNew Lone photon Have 1 prism. 123
PinkPrismNew Dazzling glimmer Have 50 prisms. 124
CyanPrismNew Blinding flash Have 100 prisms. 125
OrangePrismNew Unending glow Have 150 prisms. 126
GoldPrismNew Rise and shine Have 200 prisms. 158
RustedPrismNew Bright future Have 250 prisms. 221
BlackPrismNew Harmony of the spheres Have 300 prisms. 261
SilverPrismNew At the end of the tunnel Have 350 prisms. 292
Hazelrald Prism My eyes Have 400 prisms. 352
Mooncandy prism Optical illusion Have 450 prisms. 365
Astrofudge prism You'll never shine if you don't glow Have 500 prisms. 411
Alabascream prism A light snack Have 550 prisms. 487
Prism Monument1 v15 Praise the sun Make 10 septillion cookies just from prisms. 144
Prism Monument2 v15 A still more glorious dawn Make 100 nonillion cookies just from prisms. 202
PinkDiamond Now the dark days are gone Make 1 duodecillion cookies just from prisms. 306
GayDPrism Palettable Reach level 10 prisms. 320


Prism upgrades
Icon Name Unlock condition Base price Description ID
PrismNew Gem polish Own 1 prism Money 21 quadrillion Prisms are twice as efficient.
"Get rid of the grime and let more light in.
Truly, truly outrageous."
PinkPrismNew 9th color Own 5 prisms Money 105 quadrillion Prisms are twice as efficient.
"Delve into the untouched optical depths where even the mantis shrimp hasn't set an eye!"
CyanPrismNew Chocolate light Own 25 prisms Money 1.05 quintillion Prisms are twice as efficient.
"Bask into its cocoalesence.
(Warning : may cause various interesting albeit deadly skin conditions.)"
OrangePrismNew Grainbow Own 50 prisms Money 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?..."
GoldPrismNew Pure cosmic light Own 100 Prisms Money 10.5 sextillion Prisms are twice as efficient.
"Your prisms now receive pristine unadulterated photons from the other end of the universe."
RustedPrismNew Glow-in-the-dark Own 150 Prisms Money 1.05 septillion Prisms are twice as efficient.
"Your prisms now glow in the dark, effectively doubling their output."
BlackPrismNew Lux sanctorum Own 200 Prisms Money 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?"
SilverPrismNew Reverse shadows Own 250 Prisms Money 1.05 nonillion Prisms are twice as efficient.
"Oh man, this is really messing with your eyes."
Hazelrald Prism Crystal mirrors Own 300 Prisms Money 1.05 decillion Prisms are twice as efficient.
"Designed to filter more light back into your prisms, reaching levels of brightness that reality itself had never planned for.
Mooncandy prism Reverse theory of light Own 350 Prisms Money 1.05 undecillion Prisms are twice as efficient.
"A whole new world of physics opens up when you decide that antiphotons are real and posit that light is merely a void in shadow."
Astrofudge prism Light capture measures Own 400 Prisms Money 10.5 duodecillion Prisms are twice as efficient.
"As the universe gets ever so slightly dimmer due to you converting more and more of its light into cookies, you've taken to finding new and unexplored sources of light for your prisms; for instance, the warm glow emitted by a pregnant woman, or the twinkle in the eye of a hopeful child."
Alabascream prism Light speed limit Own 450 prisms Money 105 tredecillion Prisms are twice as efficient.
"Whoah, slow down. Harvesting light is well and good but it'd be much easier if it weren't so dang fast! This should thankfully take care of that."

Other UpgradesEdit

Icon Name Unlock condition Base price Description ID
GrandmaAchieveNew Rainbow grandmas 15 prisms and 1 grandma owned Money 105 quadrillion Grandmas are twice as efficient. Prisms gain +1% CpS per 12 grandmas.
"A luminous grandma to sparkle into cookies."
SynergyGalaxyII Abysmal glimmer 75 Prisms, 75 Portals and "Synergies Vol. II" purchased Money 422 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."
SynergyPocketWatchII Primeval glow 75 Prisms, 75 Time machines and "Synergies Vol. II" purchased Money 448 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."
SynergyPrism Light magic 15 Wizard towers, 15 Prisms and "Synergies Vol. I" purchased Money 420 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."
SynergyPrismII Mystical energies 75 Temples, 75 Prisms and "Synergies Vol. II" purchased Money 420 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."
Synergy I fractal engine Recursive mirrors 15 Prisms, 15 Fractal engines and "Synergies Vol. I" purchased Money 66.2 sextillion Prisms gain +5% CpS per fractal engine.
Fractal engines gain +0.1% CpS per prism.
"Do you have any idea what happens when you point two of these at each other? Apparently, the universe doesn't either."
Fortune prism Fortune #014 Random fortune from news ticker Money 163.333 tredecillion Prisms are 7% more efficient and 7% cheaper.
"Staring at a dazzling light can blind you back to darkness."


  • 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 fact, this is also a reference to the theme from "Jem."
  • The News ticker message "Can't you sense the prism watching us?" refers to PRISM, a United States surveillance outed by Edward Snowden.
  • The name of the last achievement, Praise the Sun, is a reference to a famous quote from the game Dark Souls.
  • Inside of the code for the beta version of the game, you can find an achievement "The Dark Side of The Moon" with flavor text "oh god", which requires to have 1000 prisms. It is not added to the final game and Orteil left a commentary after it which says: "this is a joke I promise". Its name is also a reference to the Pink Floyd album of the same name.
  • This building has a fixed distance between each building on the X axis, similar to Antimatter Condensers and Chancemakers.
  • All of the Prism upgrades cost 1.05*10x cookies except for Gem Polish, which costs one-fifth of 1.05*1017
Cursor 64px
Mine new
Factory new
Wizard Tower
Shipment new
Alchemy Lab
Portal new
Javascript console
Javascript Console
Timemachine new
Time Machine
Antimatter Condenser
Fractal engine
Fractal Engine
Buildings overviewCategory:Buildings
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