Eitanium: Logic Grid Puzzle

Contains adsIn-app purchases
Content rating
Everyone
10+
Downloads
Content rating
Everyone
In-Game Purchases
Learn more
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About this game

Eitanium is a logic grid puzzle game - the classic Einstein's riddle, rebuilt for Android. A grid of categories, a set of clues, and pure deduction to work out which item belongs in which cell.

No guessing. No luck. Just clean, satisfying logic.

HOW IT WORKS
Every puzzle is a logic grid. The clues tell you what can't be true as often as what can. Cross out the impossible, and what's left is the answer.
If you like Einstein's riddle, zebra puzzles, or classic logic problems on paper, this is that, on your phone.

WHAT'S INSIDE
- 30 levels of increasing difficulty, from gentle warm-up to genuinely hard
- Daily Puzzle - a new logic grid every day, the same one for every player worldwide
- Free Play - set your own difficulty and solve at your own pace
- Random Level - roll the dice and get a surprise challenge
- Hint system - stuck on a deduction? Get a nudge (costs Gold)
- Auto-Solve - reveal the full solution instantly (costs Gold)
- Earn Gold by winning, or buy more in the shop
- Multiple visual themes for the board
- No account needed - open the app and play

FAIR AND RELAXING
No lives. No timers. No pay-to-win. No dark patterns.
Eitanium is a brain teaser for people who want to think, not be manipulated.
Take an hour on one puzzle if you want to. Nothing is counting down.

Ads are shown between games.
A one-time "Remove Ads" purchase is available for a completely clean experience.

Originally created in 2018.
Rebuilt from scratch for modern Android.
Logic grid puzzles & brain teasers. Einstein's riddle, 30 levels, daily play.
Updated on
Aug 29, 2026
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App activity and Device or other IDs
  • This app may collect these data types
    App activity and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

Small fixes and improvements under the hood.