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Barotrauma

FakeFish, Undertow Games, Daedalic Entertainment

Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!

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About This Game

"Work together to explore and survive, and/or sabotage one another and let the ship go down in fire and flood."
- Rock Paper Shotgun

WELCOME TO EUROPA

Barotrauma is a 2D co-op survival horror submarine simulator, inspired by games like FTL: Faster Than Light, Rimworld, Dwarf Fortress and Space Station 13. It’s a Sci-Fi game that combines ragdoll physics and alien sea monsters with teamwork and existential fear.

EMBRACE THE ABYSS

In the not too distant future, humanity has fled to Jupiter’s moon. With its irradiated icy surface, life can only be found in the ocean below. Travel through a punishing underwater environment and make friends or rivals of the four factions of the world. Discover what lies in the depths of Europa.

HELP YOUR CREW SUCCEED, OR MAKE SURE NO ONE DOES

There are as many ways to enjoy Barotrauma as there are ways to die in it. Work together with your crew to achieve your goals, or brace for betrayal when you have a traitor on board. Play with friends, strangers, or your worst enemies.

EXPLORE, OPERATE, COMMUNICATE

Navigate underwater, complete missions for the last remnants of humankind, explore the ruins of an alien civilization, flee or fight monsters. Operate complex on-board systems and devices like the sonar, nuclear reactor, weapons, engines and pumps. Communication is key!

EXPERIMENT, CRAFT, CREATE

Master the complex on-board wiring and the comprehensive crafting and medical systems. Create your own submarines and monsters with built-in editors to rival the standard ones. Even tap directly into our source code and mod away.

Features

  • Play with up to 16 players on board a submarine. Supplement your player count with bots as needed in either singleplayer or multiplayer game modes.
  • 6 player classes with different skills and tasks: Captain, Engineer, Mechanic, Medic, Security officer and Assistant.
  • Talent system: Gain experience and unlock talents to improve your character. Each class has three specialization talent trees to customize your playstyle.
  • Faction and reputation mechanics: Choose who to ally with, help their cause, reap the benefits or suffer the consequences.
  • Procedurally generated world and missions with multiple game modes for virtually endless replayability.
  • Comprehensive crafting system: gather materials, craft equipment, weapons, medicines and more to help your crew survive on Europa.
  • Built-in Submarine, Character and Procedural Animation editors. Share and discover mods directly via Steam Workshop.
  • Most game data exposed in .xml and the game’s source code publicly available on GitHub for modding.

Community Activity

  1. BarotraumaSteam patch notes

    Patch v1.13.5.0

    Hello everyone! We have just released a patch to fix newly discovered multiplayer exploits as well as to pre-empt issues following Barotrauma's removal from Epic Games Store. See…

  2. BarotraumaSteam announcement

    Home & Harbor DLC coming on December 2

    Hello everyone! The time has finally come to give our upcoming expansion a release date: Home & Harbor releases on December 2, with the free “Companion Update” coming a week…

  3. BarotraumaSteam announcement

    Adjustments to regional pricing

    Hello everyone! As you may have noticed, Barotrauma has just entered a new discount period: 50% off on the basegame, the Supporter Pack and the Supporter Edition. This discount…

  4. Behold!

    ...My Stuff!

  5. BarotraumaSteam announcement

    New Look, New Show - Still Daedalic

    Heyho everyone, The recent years have been an exciting journey for us. We've welcomed incredible indie developers, published games across all kinds of genres, and continued to…

  6. BarotraumaSteam patch notes

    Hotfix for Summer Update v1.13.4.0

    Hello everyone! We've just released a hotfix to address the crossplay issues in the Summer Update. This was caused by an incompatibility in one of the reworked submarines, so the…

  7. BarotraumaSteam announcement

    Summer Update 2026 out now

    Hello everyone! This year’s Summer Update has just been released, with five reworked vanilla submarines and several fixes, improvements and quality-of-life additions. Find the…

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