I'm surprised no one made a topic for this game yet. o3o Anyways, I just got Garry's Mod for PC (I'm pretty sure its a pc, mac, and linux only game so...) and holy cow, it is a fun game! There's so much to do in it, from building robots or other stuff, Posing random stuff you find on the workshop, and playing the various game modes you can get, like Prop Hunt, Stalker, Hide and Seek, and more!
Sadly, I've played only single player mode so far as I don't have anyone else to play the game with. But it is still a fun game. ^ ^ Though I am wondering, does anyone else here play Garry's Mod?