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Sump

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About Sump

Sump is a short game intended to be completed in under 3 hours. You descend through an impossible labyrinth, operate a machine, and try to escape while uncovering what lies beyond the brick.

Descend the labyrinth

The only way out is through, and you must keep your composure as you descend. You are alone, but not unwatched.

Operate the machine

The machine works within a limited mechanical framework, and you discover what can emerge from it.

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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