I'm looking for something that will last me a while that's around $5-$15 on steam. Also co-op games would be good too. Games I have been thinking of:
Monaco
Gunpoint (won't come out until June 3rd)
Awesomenauts
System Shock 2
Sanctum 1/2
TrackMania Games
If there are any deals coming soon that I should wait for please tell me.