
Sub Terra
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

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.
Game details
Game details
Age ratings
Game modes
Languages
Features
Sub Terra player count & reviews
92% positive reviews all-time · 1 peak players in the last 30 days.
Sub Terra — frequently asked questions
How many people play Sub Terra?
Sub Terra peaked at 1 concurrent players on Steam in the last 30 days (highest on Jul 19, 2026). The player chart on this page updates daily.
How can I get Sub Terra at a discount?
Create a free price alert on this page and KingsPrice will email you when Sub Terra drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 or higher
- Processor: Quad-core Intel or AMD 2.5 GHz or superior
- Memory: 8 GB RAM
- Graphics: Any DirectX 11 or 12 compatible card
- Storage: 10 GB available space
Recommended
- Requires a 64-bit processor and operating system











