Zerko
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About Zerko
Zerko is a puzzle game about making every number on the board zero. You place blocks of different shapes and values so their numbers remove the numbers on the board. It has no points or time pressure.
Frequently asked questions
The best price for Zerko is $2.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Zerko are: Windows 7, Radeon X1300, 300 MB storage. It also runs on macOS. The recommended specs are in the System requirements section.
No. Zerko is a single-player game.
Yes. Zerko 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.
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