Not sure what you want but PC games go cheap. So I'll link 2 sites to reference for sales n stuff lol (pretty much never buy full price unless you really REALLY want the game). Also, Steam (the program most PC games use have giant sales twice a year, I think in July and December.
http://www.steamgamesales.com/
www.reddit.com/r/gamedeals
Small list of stuff I bought cheap:
Borderlands 1 ($7.50)
Grand Theft Auto 4 ($6)
Saints Row the Third: Full Package ($7.50, on sale now)
Free Stuff to try out:
The Attack on Titan Fangame www.fenglee.com/game/aog/
Team Fortress 2 (On Steam)
League of Legends / Dota 2 / Smite (MOBA games, teamwork n stuff)
Annnd....sure why not, link to my Steam profile xP http://steamcommunity.com/id/Derpacus/