Even or Odd 1 cover art

Even or Odd 1

"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…

28 June 2026

Even or Odd 1 is an indie, released 28 June 2026 on PC (Microsoft Windows).

Verified Sources: IGDB , Steam

What Even or Odd 1 is

Even or Odd 1 was released in 2026. It is available on PC (Microsoft Windows) only.

The premise, in the publisher's words

"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!
Description from the publisher · source

How it plays

It is played from a side view perspective. Its themes are action and fantasy. It is a single-player game with no multiplayer component.

What it launched against

Even or Odd 1 launched on 28 June 2026, within three weeks of Assassin's Creed Black Flag Resynced, Palworld, Doom: The Dark Ages - Revelations and Denshattack!.

Released around the same time: Assassin's Creed Black Flag Resynced, Palworld, Doom: The Dark Ages - Revelations, Denshattack!.

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Quick answers

Even or Odd 1 — frequently asked questions

When did Even or Odd 1 come out?
Even or Odd 1 was released on 28 June 2026 for PC (Microsoft Windows).

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