
Screenshots

Watch trailer on Steam ↗Full Fathom
DÆMON House · Published by DÆMON House
Last updated 27 Sept 2026
Full Fathom is an oceanic survival horror game. Pilot a deteriorating submarine as it drifts through grim waters, keeping it maintained as it is your only lifeline in the hostile, merciless ocean.
Free
Action, Adventure, Indie · More free games
Control a deteriorating submarine in Full Fathom, an oceanic survival horror experience from DÆMON House. Navigate treacherous waters and keep your vessel intact to survive the relentless threats of the deep sea.
About this game
Set adrift in a vast and uncaring ocean, you find a decrepit submarine, seemingly abandoned and in disrepair. Determined to make your way back to civilization, you must maintain the submarine and keep yourself alive.
SUBMARINE
The derelict submarine you find yourself in is your only lifeline. The various systems onboard are critical to navigating the abyssal waters but start in disrepair. Utilize them to find your way back to civilization; use the sonar to see your surroundings, the navigation console to chart out your route, and the submarine turrets to defend the submarine. Keep the sub afloat through careful maintenance lest you sink to the depths below.SURVIVAL
You are a fragile being in an unkind world. Gather food, scavenge for supplies, and find equipment to keep yourself alive for another day. Store your goods in your hermetic trunk until you can get them back to your submarine.THE OCEAN
The ocean is uncaring and beautiful. Isolated in its depths, you are left to make your way through regions of flooded ruins, now inhabited by an active ecosystem of unfamiliar sea creatures and overgrown flora. You are out of your element and surrounded by potential threats, exercise caution and use violence as a last resort.System Requirements
Will my PC run this? →Minimum
Minimum:
- OS *: Windows 8
- Processor: Intel i5 4000 Series
- Memory: 8 GB RAM
- Graphics: Nvidia GTX 1070
- Storage: 12 GB available space
Supported Languages
English
Latest news
AnnouncementsOfficial
Alpha demo 0.3.19 is now live
Many bugs squashed. General stability increased. Some performance improvements. Old saves are not compatible.Read full article on Community Announcements (Monad 𒉎)






