Seasons

Season switcher upgrade

Seasons are events based on holidays or other occasions in Cookie Clicker that unlock special upgrades and achievements, and alter gameplay. They can be helpful to get achievements that can only be earned in the first run or through Challenge Mode, such as True Neverclick or Speed baking III.

The first season introduced was Halloween Season in October 2013, followed by Christmas Season in December 2013, Valentine's Day Season in February 2014, Business Day Season in April 2014, and Easter season in May 2014.

Prior to version 1.041, seasons remained in effect until the next season was introduced. Since version 1.041, the "Season Switcher" upgrade allows a player to change seasons at will (for a cost), which lasts for 24 hours before reverting to the latest season. From version 1.0466 on, seasons are automatically triggered for a defined period of time around the related holiday (see the page of the season in question for details). Outside these periods, Cookie Clicker runs in default mode without any season specific events and changes, though flavored cookies, eggs, etc. purchased during a season will remain and stay active with their respective effects.

Season Switcher

The Season Switcher is a heavenly upgrade that can be purchased during ascension for 1,111 heavenly chips. It unlocks the season biscuits, which allow the player to manually activate any seasons at any time. A manually activated season will last for 24 hours in real time. However, keeping the game tab open and putting the computer to sleep will "freeze" the season's countdown timer; you won't earn any cookies during this time, but the end of a season can be delayed until later to allow for 24 hours of active gameplay during each triggered season. Do note, however, that this will also freeze the progress of Sugar Lumps, which makes this a very expensive tactic.

Each season biscuit costs 1,000,000,000 + (c × 60 × 1.5^n × m) cookies.

• c is unbuffed CpS. That's CpS excluding the effects of wrinklers and temporary buffs, and including all other effects.
• n is the total number of season biscuits purchased – in other words, the price increases by 50% with each purchase.
• m is 2, 1.5, or 1.25 when Selebrak is in the diamond, ruby, or jade slot, respectively, or 1 when not slotted.

Icon	Name	Unlock condition	Base price	Description	ID
	Festive biscuit	"Season switcher" purchased.	1 billion + 60 × CpS × 1.5n (uncapped)	Triggers Christmas season for the next 24 hours. Triggering another season will cancel this one. Cost increases with every season switch. "'Twas the night before Christmas- or was it?"	182
	Ghostly biscuit	"Season switcher" purchased.	1 billion + 60 × CpS × 1.5n (uncapped)	Triggers Halloween season for the next 24 hours. Triggering another season will cancel this one. Cost increases with every season switch. "spooky scary skeletons will wake you with a boo"	183
	Lovesick biscuit	"Season switcher" purchased.	1 billion + 60 × CpS × 1.5n (uncapped)	Triggers Valentine's Day season for the next 24 hours. Triggering another season will cancel this one. Cost increases with every season switch. "Romance never goes out of fashion"	184
	Fool's biscuit	"Season switcher" purchased.	1 billion + 60 × CpS × 1.5n (uncapped)	Triggers Business Day season for the next 24 hours. Triggering another season will cancel this one. Cost increases with every season switch. "Business. Serious business. This is absolutely all of your business."	185
	Bunny biscuit	"Season switcher" purchased.	1 billion + 60 × CpS × 1.5n (uncapped)	Triggers Easter season for the next 24 hours. Triggering another season will cancel this one. Cost increases with every season switch. "All the world will be your enemy and when they catch you, they will kill you... but first they must catch you."	209

Season Heavenly Upgrades

Icon	Name	Unlock condition	Base price	Description	ID
	Season switcher	"Heralds" purchased	1,111	Allows you to trigger seasonal events at will, for a price. "There will always be time."	181
	Starspawn	"Season switcher" purchased	111,111	Eggs drop 10% more often. Golden cookies appear 2% more often during Easter.	269
	Starsnow	"Season switcher" purchased	111,111	Christmas cookies drop 5% more often. Reindeer appear 5% more often.	270
	Starterror	"Season switcher" purchased	111,111	Spooky cookies drop 10% more often. Golden cookies appear 2% more often during Halloween.	271
	Starlove	"Season switcher" purchased	111,111	Heart cookies are 50% more powerful. Golden cookies appear 2% more often during Valentines.	272
	Startrade	"Season switcher" purchased	111,111	Golden cookies appear 5% more often during Business day.	273
	Keepsakes	"Starspawn", "Starsnow", "Starterror", "Starlove" and "Startrade" purchased	1.111 billion	Seasonal random drops have a 1/5 chance to carry over through ascensions. "Cherish the memories."	537

Bugs

• Sometimes, when the Business Day season ends, the names of each building and picture will stay the same until one building is purchased. To return names and pictures to normal, buy one of each building or refresh the page.