[H] Interstellar Marines, Thief Gold, Deponia, Unwritten Tales, Burnout P, Skyward, oth. [W] Offers

Hi! I have Steam keys for these games:

Interstellar Marines (key)
Interstellar Marines (gift)
Thief Gold
Skyward Collapse
Dynamite Jack
SPAZ (Space Pirates and Zombies)
The Book of Unwritten Tales Digital Deluxe Edition (Humble Bundle gift link)
Deponia (Humble Bundle gift link)
Il-2 Sturmovik 1946
Aerena (gift)
Alien Shooter 2: Conscription
Pid
Two Worlds 2
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! :)