[H] Cognition Ep. 1 & 2, Mark of the Ninja, Limbo [W] 1 TF2/DOTA2 Key for All.

Have:

Cognition Episode 1
Cognition Episode 2
Mark of the Ninja
Limbo

Want:

1 TF2 or DOTA2 Key

or

Be creative, give an offer =)