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Barotrauma
Cross-section of a submarine in Barotrauma, under ice. Interior lit red.
A screenshot from Barotrauma showing the inside of a submarine, with characters and chat.
A diver with a flashlight in a dark, underwater forest in Barotrauma. The atmosphere is foreboding.
A flooded submarine with combat in Barotrauma. The crew fights in the damaged submarine as it is submerged.

Enter a dystopic, futuristic universe where humanity has been forced to flee to Jupiter in order to survive. Jupiter's moon, Europa, is the only suitable place in our solar system, but there is a little inconvenience. the icy surface of Europa can't harbor human life, and human civilization had to find a way to survive in the ocean below. 

Barotrauma is a co-op survival horror game where you play as the crew of a submarine. Cooperate with up to 16 players to explore the surrounding environment and find ways to survive. The game pits you against a procedurally generated world full of perils, where you will have to react to unexpected events. Barotrauma has a crafting system, and you will be able to gather materials and craft everything you need to survive. 

Choose from six different classes, Captain, Engineer, Mechanic, Medic, Security officer, and Assistant. Each one has different abilities that you can expand and improve as you gain experience and progress through the game. But the most important element for your survival is cooperation. You need to choose who to trust. There are several factions, each with its own agenda, and only by supporting the appropriate one do you have a chance of surviving in such a hostile underwater environment.

Barotrauma features detailed graphics in 2D and a unique art style. It supports heavy modding so you can find plenty of different ways to enjoy the game.

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    FAQ - Frequently Asked Questions

    Can I weld the doors shut to trap enemies in specific sections of the submarine, and if so, what are the implications?
    Yes, you can weld doors. While this provides temporary security against creatures, it can also trap crew members, impede access during emergencies like fires or hull breaches, and even be undone by creatures with appropriate tools, creating a tense balance between security and accessibility.
    How does the submarine's oxygen system work, and what are the consequences of its failure?
    The submarine's oxygen system involves generators, oxygen tanks, and ventilation. Failure results in decreasing oxygen levels, leading to suffocation, reduced vision, and impaired performance for the crew. Maintaining this system is crucial for survival.
    What is the purpose of the submarine's reactor, and what dangers are associated with its operation?
    The reactor powers the submarine's systems. It's essential for lights, life support, and weapons. However, it can overheat, causing explosions, fires, and radiation leaks, demanding careful monitoring and maintenance by the engineering crew.
    How do creatures breach the submarine, and what can the crew do to prevent or mitigate these breaches?
    Creatures breach through hull breaches caused by collisions, damage from creatures, or malfunctions. The crew can use welding tools to repair breaches, deploy the ballast to control flooding, and use weapons to kill creatures before they can cause damage.
    What is the function of the submarine's ballast tanks, and how are they used in gameplay?
    Ballast tanks control the submarine's buoyancy. Filling them with water makes the sub sink, while pumping the water out makes it rise. They are vital for maneuvering, escaping creatures, and stabilizing the sub after hull breaches.
    How do medical conditions affect gameplay, and what tools and resources are available to treat them?
    Injuries and illnesses affect crew performance. These conditions can lead to bleeding, broken bones, poisoning, and more. The medical staff can use various items, such as bandages, morphine, and antibiotics, to treat these conditions and keep the crew alive.
    What roles are available to the crew, and how do they contribute to the submarine's operation?
    The crew can take on roles, such as Captain, Engineer, Mechanic, Medic, and Security. Each role has specific responsibilities, such as piloting, maintaining systems, repairing damage, treating injuries, and operating weapons, all of which are essential for survival.
    How does the submarine's electrical system work, and what happens when it's damaged?
    The electrical system powers lights, machinery, and other vital systems. Damage can lead to power outages, malfunctioning equipment, and reduced visibility. The engineer has to repair wires and components to restore functionality.
    Can players upgrade their submarine during a campaign, and if so, how?
    Yes, players can upgrade their submarine. They can purchase new modules, weapons, and other equipment at outposts. Furthermore, players can also change the layout of the sub as they progress, altering its capabilities and effectiveness.
    What is the role of diving suits, and how are they used in gameplay?
    Diving suits allow crew members to venture outside the submarine to perform repairs, salvage resources, and fight creatures in the hostile environment. They provide protection from the environment and allow for underwater navigation.

    Patch Notes

    • v1.13.4.0 - 6/18/26 (Hotfix for Summer Update v1.13.4.0)
    • v1.12.7.0 - 4/21/26 (Hotfix v1.12.7.0 for the Spring Update)
    • v1.11.5.0 - 12/18/25 (Hotfix v1.11.5.0 and new music tracks)
    • 1.10.7.2 - 10/22/25 (Hotfix 1.10.7.2 for the Autumn Update)
    • v1.10.7.1 - 10/10/25 (Hotfix v1.10.7.1 for the Autumn Update)
    • v1.10.7.0 - 10/2/25 (Hotfix v1.10.7.0 for the Autumn Update)
    • v1.10.6.0 - 9/25/25 (Hotfix v1.10.6.0 for the Autumn Update 2025)
    • v1.9.8.0 - 7/1/25 (Hotfix v1.9.8.0 for the Summer Update 2025)
    • 1.8.8.1 - 4/29/25 (Hotfix v.1.8.8.1 for the Calm Before the Storm update)
    • v1.8.7.0 - 4/16/25 (Hotfix v1.8.7.0 for the Calm Before the Storm update)
    • v1.6.19.1 - 10/31/24 (Hotfix v1.6.19.1 for the Unto the Breach Update)
    • v1.6.18.1 - 10/28/24 (Hotfix v1.6.18.1 for the Unto the Breach Update)
    • v1.5.9.2 - 8/28/24 (Hotfix v1.5.9.2)
    • v1.5.9.1 - 6/27/24 (Hotfix v1.5.9.1 for the Summer Update)
    • v1.5.8.0 - 6/19/24 (Hotfix v1.5.8.0 for the Summer Update)
    • v1.4.6.0 - 5/2/24 (Hotfix v1.4.6.0 for Blood in the Water)
    • v1.4.5.0 - 4/26/24 (Hotfix v1.4.5.0 for Blood in the Water)
    • v1.3.0.4 - 4/16/24 (Hotfix v1.3.0.4)
    • v1.3.0.3 - 4/12/24 (Hotfix v1.3.0.3)
    • v1.2.8.0 - 1/11/24 (Hotfix v1.2.8.0 for the Winter Update)
    • v1.2.7.0 - 12/20/23 (Hotfix v1.2.7.0 for the Winter Patch)
    • v1.1.19.3 - 10/30/23 (Hotfix v1.1.19.3 for Treacherous Tides)
    • v1.1.18.1 - 10/20/23 (Hotfix v1.1.18.1 for Treacherous Tides)
    • v1.0.21.0 - 6/21/23 (Hotfix v1.0.21.0)
    • v1.0.13.2 - 5/11/23 (Hotfix v1.0.13.2)
    • v1.0.9.0 - 4/12/23 (Hotfix v1.0.9.0)
    • v1.0.8.0 - 3/16/23 (Hotfix v1.0.8.0)
    • 12/20/22 (Hotfix for the Holiday Update)
    • 10/20/22 (Second fix patch for Hoist the Sails update)
    • v0.19.11.0 - 10/6/22 (Hotfix v0.19.11.0 for Hoist the Sails)
    • v0.18.15.2 - 8/26/22 (Fix for MacOS v0.18.15.2)
    • v0.18.15.1 - 8/9/22 (Hotfix v0.18.15.1)
    • 7/14/22 (Fix patch for the anniversary update)
    • 4/28/22 (Fix patch for the Urban Expanses update)
    • 2/25/22 (Hotfix for the Rising Tide update)
    • 1/13/22 (January hotfix)
    • 12/16/21 (Hotfix for the Holiday Update)
    • 11/2/21 (Fix patch for the Among the Ancients update)
    • 4/29/21 (Fix patch for Embrace the Abyss)
    • v0.12.0.3 - 2/16/21 (Hotfix v0.12.0.3)
    • 12/16/20 (Hotfix for the Uncharted Depths update)
    • 4/30/20 (Hotfix for the Rusted Remnants update)
    • 3/31/20 (Patch and monster mini-update out now)
    • 12/17/19 (Bugfix patch for the Beasts Within update out now)
    • 7/10/19 (Third patch out now!)
    • 6/14/19 (First post-launch patch out now)

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    Supported languages

    Interface Audio Subtitles
    English
    Polish
    Korean
    Portuguese (Brazil)
    Russian
    French
    Spanish (Spain)
    German
    Japanese
    Chinese (Simplified)
    Chinese (Traditional)
    Turkish
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