FULL METAL COFFIN

Co-op submarine simulator with torpedo combat in flooded Antarctic caverns

Titanite, Mantle Array, Xenith · Released Jun 24, 2026

Reviews: Very Positive; 94% of 145
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 3 months ago; Jun 30, 2026
Minimum PC: GTX 1660s; 8 GB RAM · 3 GB disk; Full requirements

What is FULL METAL COFFIN?

In this co-op submarine simulator, up to four players operate a vessel beneath Antarctica, fighting for control of flooded caverns. You track enemies with sonar and hydrophones, craft and load different torpedo types, destroy outposts, and defend against enemy waves.

For you if...

+you enjoy dividing crew duties and communicating during combat
+you like choosing engagements carefully and preparing ammunition in advance

Not for you if...

−you want combat without crafting or equipment management

What players say

94% of 145 reviews are positive

Players praise playing with friends and the sonar system. Common complaints concern the torpedo-building sound and limited content, with some players also reporting stability problems.

Screenshots and trailer

FULL METAL COFFIN system requirements

Minimum: GTX 1660s, 8 GB RAM, 3 GB of disk space.

As published by the developer.

Can my PC run FULL METAL COFFIN?

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Minimum

OS: Windows 10 or 11
Processor: Ryzen 5500
Graphics: GTX 1660s
Memory: 8 GB RAM
Storage: 3 GB available space

Does FULL METAL COFFIN have co-op or multiplayer?

Yes: co-op online. There is no single-player mode.

Does FULL METAL COFFIN run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 5
Steam features: Family Sharing
Languages: Text only: English.

Does FULL METAL COFFIN use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam