E9uations
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About E9uations
E9uations is a single-player Sokoban-based puzzle game built around arithmetic. You control the equals sign, moving it to position numbers and operators and complete equations. When an equation connects, it is calculated automatically and the result appears on the other side.
Solve the puzzles
Connect a number to an octagonal target with the same value to make both disappear. Clear all targets to finish each puzzle. The game uses only the four basic arithmetic operations, and its puzzles do not require complex mental math; each calls for its own insight.
Chapters and hints
The puzzles are arranged into multiple themed chapters. Easier and harder puzzles are separated within each chapter, so you can progress non-linearly. Hints are available for most puzzles and present simpler versions that share the same core idea.
Puzzle features
- More than 160 handcrafted puzzles
- Unlimited undo
Frequently asked questions
The best price for E9uations is $14.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for E9uations are: Windows 10, 1 GB RAM, 200 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. E9uations is a single-player game.
Yes. Valve rates E9uations as Verified on the Steam Deck: it runs well out of the box.
Yes. E9uations is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











