Via Games Radar and Green Man Gaming.
https://goldenjoysticks.greenmangaming.com/
Vote for your Golden Joysticks Awards. Get a voucher for 95% off Bioschock Infinite at GMG. Comes with Steam key.
Good for those who still haven't purchased or played.
The ad says "Call of Duty games priced $19.99" not all games at that price. So all games except CoD games at $19.99 and clearance games should work for the deal.