99% of these keys should work but Im not sure about Toy Soldiers and Super Meat Boy because I may gifted them before and forgot about it
Super Meat Boy STEAM
Toy Soldiers x3 STEAM
Max Payne 3 Local Justice DLC
Saints Row 3+Saints Row 2+Risen 2+Sacred STEAM
Brutal Legend STEAM
Mirrors Edge STEAM
Mirrors Edge ORIGIN x3
Crysis 2 STEAM
Burnout Paradise STEAM
Dead Space STEAM
Super Meat Boy STEAM
Toy Soldiers x3 STEAM
Max Payne 3 Local Justice DLC
Saints Row 3+Saints Row 2+Risen 2+Sacred STEAM
Brutal Legend STEAM
Mirrors Edge STEAM
Mirrors Edge ORIGIN x3
Crysis 2 STEAM
Burnout Paradise STEAM
Dead Space STEAM