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Subtracto

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About Subtracto

Subtracto is a minimalist number puzzle game where you subtract colorful balls from a Main Number to reach zero and score points. You can click a ball or hold and drag it. Going below zero costs you time.

Modes and scoring

The game has three modes. As the challenge escalates, you reach target scores, use multipliers to increase your score and unlock new game sets.

Frequently asked questions

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.

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