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Opus Ludum

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About Opus Ludum

Opus Ludum is a collection of classic and new challenges that test your wit and skill. You solve puzzles involving lateral thinking, maths, physics, memory and mazes, as well as drive at full speed. The challenges exercise your intellect as you progress.

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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