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  1. Steam2.0 · 560 reviews
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Trailers & screenshots

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About Abyssal Trench

Abyssal Trench is a single-player, first-person psychological horror game set deep underwater. You play as a lone explorer who wakes from cryo-sleep after a failed mission: your escape pod is out of fuel, your team is missing, and a mysterious AI voice sends you to investigate three abandoned drilling sites on the seafloor.

Explore the seafloor

You pilot a submersible mech through underwater environments, avoiding monstrous deep-sea creatures and enduring surreal hallucinations caused by isolation and oxygen deprivation. You have no weapons; you rely on movement, observation and problem-solving to survive.

Investigate the sites

At each drilling site, you collect mission data, uncover story fragments and restore power. Navigation puzzles, stealth sections and scripted psychological events present different challenges as you piece together what happened during the three years you spent in cryo-sleep.

A focused story

The game has a clear beginning, middle and end, and a single playthrough takes most players about 1.5 to 2 hours. You can revisit story clues and events to uncover deeper lore.

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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