[H] Rock of Ages, Interstellar Marines, Thief Gold , Burnout Paradise, 16 more [W] Games

Hi! I have Steam keys for these games:

Interstellar Marines (gift)
Thief Gold
Rock of Ages
Gun Monkeys (key gives you a gift copy once activated)
Dynamite Jack
Aerena (gift)
Alien Shooter 2: Conscription
Pid
Dino D-Day
Sid Meier’s Ace Patrol (Humble Bundle gift link)
Sid Meier’s Ace Patrol: Pacific Skies (Humble Bundle gift link)
Zeno Clash (Humble Bundle gift link)
Burnout Paradise: The Ultimate Box
Command & Conquer: Red Alert 3 - Uprising
NightSky
Serious Sam HD: The First Encounter
Serious Sam HD: The Second Encounter
Rig 'n' Roll

Steam-only games please! :)

I'm not interested in TF2 keys / CS:GO / DOTA2 / Steam Cards.
Thank you everybody for offering! I'm happy to stay friends with you after the trade! :)