The DRM free, digital download site GoG are having a summer sale at the moment, lots of cheap games to grab. On top of that you can get Torchlight completley free for a limited time.

Torchlight was a Diablo style, isometric, rpg dungeon crawler. It’s actually a decent game if you like that sort of thing and for free, why the hell wouldn’t you? By the way, I think the GoG guys were hoping while you were claiming your free game, you might have a look at the other stuff on sale. Seems a fair trade for their awesomeness.