Space Station 14 on Steam!
It’s free and very fun. I’m quite new to SS14 and there seems to be a lot to it. It’s graphics are topdown, 2D and aren’t it’s strong point but the potential for fun is unlimited.
I found it to be pretty overwhelming at first, evening moving around and navigating the UI was difficult. However, now I’m going around mining space rocks, cleaning up mess in the station and providing my crew mates with ketchup on bread for sustenance.