CS:GO had no interest for me, because I'm not a big fan of FPS in general and the typical sophomoric attitudes of those who plague FPS type servers in specific.

i prefer strategy games overall. Terraria was a lot of fun, I tried to get Dwarfs F2P to work, but I couldn't get it up and running for me on my linux box (hopefully now that I've signed up for the beta of the linux distro of steam, that will be fixed). Civ V: Gods and Kings demo is working, so I'll probably be saving up for that. Just ran across Dungeon Defenders, downloading the demo now to see if it's my cuppa, but it sounds like it is.