I have some more cool keys to share. Also with the Steam Sales HAPPENING I'm sure there may be unwanted keys floating around.

Castle Crashers
Hatoful Boyfriend
Life Is Strange - Episode 1
Murdered: Soul Suspect
Tomb Raider
Tomb Raider II
Tomb Raider III
Tomb Raider: Anniversary
Tomb Raider: Legend
Tomb Raider: Underworld
To The Moon