Microsoft's Games on Demand service is infamous for its non-competitive prices. They often cost much more than current retail prices and seldom even go on sale. That makes this week's Games on Demand sale pretty special. Most of the sale games are pretty old, but their prices have been slashed down to just five bucks in most cases. Plus, the sale includes plenty of co-op offerings. I'm talking about Ghost Recon Advanced Warfighter, Perfect Dark Zero, Tornado Outbreak, Cloudy with a Chance of Meatballs, and Kameo, all super cheap this week.

Ghost Recon: Future Soldier is out next week on the 360 and PlayStation 3, PC owners will have to wait till early June to get their hands on the title.  But if you're jealous and feel the need to catch up on the series, Steam has the perfect deal for you.  All three Ghost Recon titles and the two expansion packs for the first game are now on sale for a total price of just $7.50.  If you're just looking for the more recent games, Ghost Recon Advanced Warfighter 1 and Ghost Recon Advanced Warfighter 2, (which support online co-op) you can pick them up for $2.49 each.