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The Underpass

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About The Underpass

The Underpass is an anomaly-hunting game in which you study your surroundings and spot differences to escape a loop. It contains over 30 anomalies, and an average playthrough lasts 30–60 minutes.

Anomalies do not repeat until you have discovered them all, which makes completionist runs easier. The game autosaves your 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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