UBOAT

World War II submarine simulator centered on crew survival and command

Deep Water Studio · Published by PlayWay S.A. · Released Aug 2, 2024

Reviews: Very Positive; 84% of 27K
Recent reviews: Mostly Positive; 73% of 185 in 30 days
Playing now: 443; right now
Steam Deck: Playable
Last update: 4 weeks ago; Aug 24, 2026

What is UBOAT?

This single-player World War II submarine simulation is an open-world survival sandbox about commanding a German U-boat crew. You assign sailors, manage fatigue, morale, and supplies, plan naval attacks, handle flooding and repairs, and carry out changing headquarters assignments to fund upgrades.

For you if...

+you want adjustable realism in a World War II submarine
+you enjoy managing crew needs, supplies, and emergency repairs
+you prefer open-ended solo patrols and changing assignments

Not for you if...

−you dislike learning layered simulation and crew-management systems
−you mainly want multiplayer naval battles

What players say

84% of 27,313 reviews are positive · 73% of 185 in the last 30 days

Players most often praise the crew management, adjustable simulation depth, and cascading emergencies created by damage and repairs. Since the Distant Coasts update, many players report frequent crashes, broken saves or base functions, failed crew tasks, and visual glitches; some say later hotfixes have not resolved the major issues.

Screenshots and trailer

UBOAT system requirements

As published by the developer.

Minimum

OS: Windows 7 64 Bit / Windows 8 64 Bit / Windows 10 64 Bit / Windows 11 64 Bit
Processor: Core i3 3.1 GHz or AMD Phenom II X3 2.8 GHz
Graphics: GeForce GTX 750 Ti 2GB (1080p Low) or AMD equivalents
Memory: 6 GB RAM
Storage: 71 GB available space
DirectX: Version 11

OS: Windows 7 64 Bit / Windows 8 64 Bit / Windows 10 64 Bit / Windows 11 64 Bit
Processor: Intel Quad Core i7 3770K or AMD Ryzen 5 1600X
Graphics: GeForce GTX 1060 6 GB (1080p High), GeForce GTX 1070 8GB (1080p Extreme) or AMD equivalents
Memory: 8 GB RAM
Storage: 71 GB available space
DirectX: Version 11

PC version details

DRM, required accounts, controller support and Steam features.

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 51
Steam features: Workshop, Cloud saves, Family Sharing

Steam Deck: Playable

Sometimes shows mouse, keyboard or non-Deck controller icons
Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Default graphics settings perform well on Steam Deck

Multiplayer and co-op

Single-player

Languages

Full audio: English, German. Text only: French, Italian, Spanish - Spain, Polish, Russian, Korean, Simplified Chinese, Turkish, Czech, Portuguese - Portugal, Japanese.