Starting, like, a few minutes ago, the Xbox Games Store has hit the "on" switch for a week's worth of sales as part of the Deals with Gold program. Among the add-ons and full games for sale, co-op players will be happy to see titles like Transformers: Rise of the Dark Spark, Watch_Dogs, Rayman Legends and Guacamelee making an appearance.
The complete list of titles for sale is a bit Need for Speed heavy, especially for Xbox One owners, but there are some nice single player games in the group as well, like Crysis 3, Fallout 3 and Skyrim. On the co-op side of things the outlook is surprisingly good:
Transformers: Rise of the Dark Spark (4 player local co-op) - 33% off Watch_Dogs (2 player local co-op w/ companion app) - 28% off Rayman Legends (5 player local co-op) - 67% off Plants Vs Zombies Garden Warfare (4 player online co-op) - 33% off Lego Star Wars The Complete Saga (2 player online/couch co-op) - 50% off Star Trek (2 player online/local co-op) - 75% off Left 4 Dead (4 player online co-op) - 75% off Spec Ops: The Line (2 player online/LAN co-op) - 85% off Twisted Pixel Games Bundle (with `Splosion Man and Ms Splosion Man) - 67% off Sniper Elite 3 (2 player online co-op) - 33% off Dead Island (4 player online/LAN co-op) - 75% off Guardians Of The Middle Earth (5 player online co-op) - 67% off Guacamelee! (2 player local co-op) - 50% offAll of these lovely deals are in effect for North America from now through September 1st.