Looking something like multiplayer Rimworld, sci-fi colony simulation and survival game Cryofall released this week to pretty positive reviews and a pretty strong user count that puts it in the top 300 Steam games. Cryofall is all about team-based cooperation, with players pitted against a hostile world in trying to establish a new colony. To do it, players have to master basic technologies just to survive before building up to new and more complex techs, ending with futuristic cybernetics and mass-industrialization.
Cryofall is playable both as a cooperative PvE experience with friends on a private server or as clan-based, PvP MMO survival against other groups on shared servers. The world itself is inhabited by deadly creatures and the scattered remnants of earlier, failed colonization attempts.
What I find most interesting about Cryofall is that the full game is available as an eight hour timed demo. That's a pretty serious vote of confidence in the quality of their game by the developers—consider that many people don't even spend eight hours on games they paid for.