The "Calm Before the Storm" update for the 2D co-op horror game Barotrauma introduces several new features, including a mission to explore alien ruins, a themed outpost for player-versus-player encounters, additional modules for abandoned outposts, updated level backgrounds, and a reserve bench option for bots. The update also improves AI for bots and rebalances the radiation mechanic while introducing new creatures that thrive in radioactive environments. The new modules were created by a fan of the game, NotWendy. Barotrauma is currently available at a 50% discount on Steam until April 26.