57%Good matchDISTURBING FEARS - Workplace
91%21091% positive reviews, Very Positive across 210 reviews·Release date TBA·Horror · Psychological Horror
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Sub Terra is a first person psychological horror game set deep underground. As a maintenance worker, your job is to fix a broken water line at the end of tunnel 04-R. Enter the tunnel, repair the pipe, and get out.
Sub Terra
Steam

Sub Terra is a single-player first person psychological horror game inspired by The Backrooms. As a maintenance worker, you've spent your whole life venturing deep underground to repair pipes, gas lines, you name it. Utilities that we take for granted.
On a day like any other, you enter the manhole and descend the depths to replace a water line at the end of tunnel 04-R. The job is straightforward. The directions are clear.
But your repair doesn't go quite as planned.


Warning: Sub Terra contains loud noises, flashing lights and material that may be disturbing to some individuals.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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