Barotrauma is a game about dying horribly underwater in the seas of Jupiter's moon Europa. It's a coop game inspired by old games like space station 13. Everyone picks a role - captain, security officer, engineer, mechanic, doctor, intern, and you try to accomplish missions in the pitch black seas under miles of ice. It's one of those games where a small problem can rapidly escalate in to a fatal disaster and frantically trying to repair your ship as it plummets towards crush depth is a constant theme. There are also things down there in the sea. It's great for people who like fiddling - it has a complex wire system that can do everything from make light switches to run the nuclear reactor to create complex auto-targetting canons. There's a very involved submarine editor that takes a while to learn but is basically pure sugar for people who like tinkering and building complex stuff you can actually play with. All and all a really fun, unique game to play with friends.