Grumpy Old Gamers
EVEN OR ODD 1

EVEN OR ODD 1

Fermat Freaks co., Ltd · 28 Jun 2026

Price

Free to Play

EVEN OR ODD 1 is free to play at Steam.

"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!

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Last updated: 6 Oct 2026

FAQ

Where can I buy EVEN OR ODD 1 cheapest?

EVEN OR ODD 1 is free to play at Steam.

Is EVEN OR ODD 1 on sale right now?

EVEN OR ODD 1 is free to play, so there is no price to discount.

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