It's technically an MMORPG. Space station 13 is a really old game (made in BYOND) where you take a role in a space station and go about your day. Chaos ensues.
It's one of the deepest games ever.
Space station 14 is a remake I'm a different engine still being built. Runs better and does some things 13 doesn't, but still missing a lot of depth of 13.
It's got a really steep learning curve but is one of my favorite games for the madness that happens.
What @[email protected] said, if you want to see how it plays, look at liltenhead's gameplay videos on YouTube. It's the same channel that made this update video