
RPGActionAction RPGRoguelikeAction RoguelikeCasualStrategy2D
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 between lanes to smash back incoming numbers with charge shots!
- Developer
- Fermat Freaks co., Ltd
- Publisher
- Fermat Freaks co., Ltd
- Release date
- June 28, 2026
- Platforms
- Windows
- AppID
- 4495530
Is anyone still playing EVEN OR ODD 1?
Are people playing it now?
We don't have player counts for this game yet.
Which languages?
Available in 4 languages.
What do players say?
66% of 6 reviews are positive. Steam rating: 6 user reviews.
How much is it in the United States store?
Free to play.
Playing now
No data
24h peak
—
Reviews
6 user reviews · 66% · 6 reviews
Price
Free to play
Recent news
No news in the last 30 days.
Language support
English, Japanese, Simplified Chinese, Traditional Chinese