Greenmangaming

Get credit or cash back on select games
Batman: Arkham Origins $12 GMG Credit

Borderlands 2 Season Pass $6 GMG Credit

Ring Runner: Flight of the Sages $4 GMG Credit

Rise of the Triad $4 GMG Credit

Sid Meier's Civilization V: Brave New World $6 GMG Credit

Sword of the Stars: The Pit $3 GMG Credit

Teleglitch: Die More Edition $3 GMG Credit

The Bureau: XCOM Declassified $12 GMG Credit

Total War: Rome II $12 GMG Credit

Also there is Square Enix sale going on

Tomb Raider $12.49 with $1.50 cash back, or $2.50 GMG credit

Deus Ex Invisible War $1.74


Sleeping Dogs Pack $16.23 $3.00 cash back or $4.00 GMG credit
Sleeping Dogs - Limited edition
Sleeping Dogs - Dragon Master Pack
Sleeping Dogs - Swat DLC
Sleeping Dogs - The Street Racer Pack
Sleeping Dogs - Nightmare in North Point
Sleeping Dogs - Wheels of Fury
Sleeping Dogs - Year of the Snake
Sleeping Dogs - Zodiac Tournament

Gamersgate:

Awesomenauts $2.50

Call of Juarez: The Cartel $4.99

Scribblenauts Unlimited $4.99

Getgamesgo

Borderlands 2 $7.49

XCom Enemy Unkown $9.19
DLC is on sale also XCom Declassified $39.99
Has the same level system as GMG and Steam