
About
"Even? Odd? Forget the math!" Enter the Collatz Conjecture—mathematics' greatest unsolved mystery—reimagined as a high-speed roguelike action game. Play as "Ichi," the muscle-brained magical girl, teleporting between lanes to smash back incoming numbers with charge shots!
Pre-release · Steam · App 4495530
EVEN OR ODD 1
Fermat Freaks co., Ltd
GenresActionCasualIndieRPGStrategyFree To Play
ActionCasualIndieRPGStrategyFree To Playview more (+6)
CategoriesSingle-playerSteam AchievementsSteam Cloud
Single-playerSteam AchievementsSteam Cloudview more (+3)
Player tagsRPGActionAction RPGRoguelikeAction RoguelikeCasualStrategy2DAnimePixel GraphicsControllerCombatHack and SlashFree to PlayIndiePerma DeathSingleplayer
RPGActionAction RPGRoguelikeAction RoguelikeCasualStrategy2DAnimePixel GraphicsControllerCombatHack and SlashFree to PlayIndiePerma DeathSingleplayerview more (+17)
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Tracked since May 6, 2026·Details 4d ago·Followers 2d ago