Deal-O-Tron 5000 "I Didn't Forget Because of Mass Effect This Time" Edition
 

Steam
Anno 2070 is 40% off. Worth a look.

Dungeon Defenders is half off this weekend. Gather up some pals and destroy some ogres.


GoG
A bunch of Apogee shooters are half off this weekend, includes games like Duke Nukem 3D and Rise of the Triad.

Xbox Live
It's a hack and slash kind of weekend on XBL. Torchlight, Daggerdale, Kill Team and Deathspank are all discounted.

PSN
Bioshock 2 + all the DLC is $29.99 until March 20th.

Call of Duty 4: Modern Warfare Bundle - $20.99, includes the game and all DLC.

If you find any more gaming deals be sure to hit up the thread and tell us all about them.