
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.
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About

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.

Immersive Experience: Realistic graphics and spatialized audio create a truly immersive experience guaranteed to make you feel like you're really 50 feet under.
Unravel a Mystery: Piece together hints and clues to learn the tragic story of what's been buried underground.
Keep an Eye Out: You know the tunnels like the back of your hand, but you're not the only thing down there.
Locations: Your job may be down a manhole, but you'll discover much more than just maintenance tunnels.
Warning: Sub Terra contains loud noises, flashing lights and material that may be disturbing to some individuals.
Genres
Stats
Languages: English**languages with full audio support
Engagement
Reviews
Themes across 42 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
I have never been so scared fixing pipes underground before. Has a lot of backrooms lore to it, I like that. Very cool atmosphere. Had to read diary entries and listen to the narration to understand what happened. I enjoyed this game and recommend. See my playthrough here: https://youtu.be/XMzhqmwyxbs
This was such a good game! The beginning was great, the personal touch of the journals, the realisation that the main character doesn't remember what he did, the jumpscares. I got goosebumps so many times. 5 Stars!
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Hours played at review time, across 42 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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