Mount & Blade (Warband is probably the best bet)
Chivalry
The Witcher (Witcher 1 is good but long and has some slow sections that drag on so you can skip to 2 if you really want)
Recettear: An Item Shop's Tale/Fortune Summoners
The Binding of Isaac
Dungeons of Dredmor
Avernum: Escape From the Pit or alternatively Avadon (both are good entry points into Spiderweb software's RPGs)
Dawn of War 2
Orcs Must Die! 1 & 2
Crusader Kings 2
S.T.A.L.K.E.R. (make sure to grab some mods, Complete mods are pretty good at fixing bugs and balance without changing the experiance too much)
Check out these sites to find good deals on games
http://www.deals4downloads.com
http://www.greenmangaming.com/
Green man gaming has Civ V plus the two expansion packs and a bunch of DLC for $27.19 (and use GMG20-8MUTY-M21VN to get 20% off)
http://www.greenmangaming.com/s/nz/en/pc/games/strategy/civilization-pack/
It's a steamworks title so you will get a steam code, so no need to wait buy it NOW! lol
@TheVoxelman on twitter
