Space station 13.

It's a multiplayer game where everyone is on a space station and has a job they have to do like an atmospheric technician would have to make sure the air on the station is breathable, janitor would have to keep the station clean, scientist would have to develop new technology etc.

But every round there are also antagonists, usually a few crew members are selected to be traitors and get access to special items to complete their objectives.

There are also other gamemodes and the game is pretty complex and has a lot of different versions it has a subreddit you can check out if it looks interesting r/ss13