Looks like Valve has serious competition at last
Amazon Game Downloads Spring Sale
Darkness II - $12.50Enjoy spring savings on over 100 great game downloads. Browse the selection below and find favorites like Warhammer 40,000: Space Marine for $9.99, Saints Row: The Third for $24.99, Metro 2033 for $4.99, and much more. We've also got over 300 casual game downloads for $2.99. The Spring Sale will run from April 5-15, 2012. Amazon reserves the right to change or terminate this promotion at any time.
Serious Sam 3 - $12
Dragon Age 2 - $10
LA Noire - $5
List goes on and on, this is pretty much a Steam Sale except it's amazon.