Last updated for version 0.19.14.1 Last mentioned in changelog 1.4.4.1 The current game version is 1.4.6.0
Submarines are the central feature of Barotrauma. They are used to navigate Europa's vast oceans while keeping their crew safe from the moon's many dangers.
The crew's main task is to maintain the various Installations in working order and fight fires and floods.
Statistics Comparison
The table below lists every purchasable submarine and their base main characteristics; that is, before any upgrades are installed, turrets modified, or wiring tweaks made.
Maximum ascent speed (empty ballasts) is 19 km/h for all submarines. Horizontal (engine) speed is identical going forwards and backwards.
Some submarine tiers cannot be purchased until later biomes have been reached.
Outpost Type
Cold Caverns
Europan Ridge
The Aphotic Plateau
The Great Sea
Hydrothermal Wastes
Colony
Tier 1
Tier 2
Tier 2
Tier 3
Tier 3
Habitation
Tier 1
Tier 1
Tier 2
Tier 2
Tier 3
Military
Tier 1
Tier 1 Attack T2
Tier 2
Tier 2 Attack T3
Tier 3
Research
Tier 1
Tier 1 Scout T2
Tier 2
Tier 2 Scout T3
Tier 3
Mining
Tier 1
Tier 1 Transport T2
Tier 2
Tier 2 Transport T3
Tier 3
Shuttles
Shuttles are much smaller submarines used mostly as respawn vessels in multiplayer. They very often don't have their own nuclear reactor and their batteries are often fully charged and can store more kW power than the main submarine.
Respawn shuttles spawn only if a certain percentage of players has died. This can be changed in the server's settings.
Upon spawning in, the shuttle will be stocked with Disposable Diving Suits equal to the number of respawned players on board.
They can be used in case the shuttle is not able to dock safely to the main submarine.
Shuttles are incredibly prone to sinking from attacks, given that they have no turrets and little hull health compared to normal submarines.
Drones
Drones are small shuttles, remotely controlled from the submarine using a Shuttle Navigation Terminal.
They are battery powered and extremely fragile. They are not made to transport humans or cargo. Their task typically is to provide remote scouting and firepower.
Only two default submarines have their own shuttle: