Uncharted Depths is the name of the latest upgrade to Barotrauma, a sci-fi exploration sim that puts you and friends (or random people / AI) inside a submarine in the depths of Jupiter's moon Europa.
Read the full article here: https://www.gamingonlinux.com/2020/12/sci-fi-submarine-suffering-sim-barotrauma-has-a-big-overhaul-in-uncharted-depths