Key Exchange (Max Payne 3, NBA2k13, Borderlands GOTY, Spec Ops, and more)

I offer Steam keys for these games:

-Max Payne 3

-NBA2k13

-Duke Nukem Forever

-Mafia 2

-Borderlands GOTY

-Spec Ops

-Darkness 2 -

-Sid Meier's Civilization V

-Sid Meier's Civilization V: Gods and Kings (Expansion)

I'm open to other games. I do not want money.

My Steam account is: http://steamcommunity.com/profiles/76561197999560598/

Greetings!