Get a deep dive into the Treacherous Tides Update for Barotrauma, which brings an overhaul to the traitor system of the cooperative multiplayer submarine simulator game. The traitor system overhaul injects new features, delves into campaign integration, and adds a variety of volatile events and new rewards. The Treacherous Tides Update for Barotrauma is available now. Barotrauma is a 2D co-op submarine simulator set on Europa, one of the moons of Saturn, featuring survival horror and RPG elements.