There's a codemasters humble bundle for 3.60 or $6 at the moment you get Overlord, Overlord: Raising Hell, Rise of the Argonauts, Operation Flashpoint: Dragon Rising, Operation Flashpoint: Red River, Overlord 2, Dirt Showdown and Dirt 3

Unfortunetly I got it but the STEAM STORE is down and won't let me log in to get the keys but I can try later on