[H] Various game codes, Wallet, Amazon GC [W] something fun to play, or MW1, or TotD

Hi everyone! I have the following games

FTL

Humble Origin Origin keys sans DS3

Sanctum Collection

Gun Monkeys (gift)

Warhammer 40k DOW gold

Batman AA GOTY

Metro 2033

Killing Floor

MK Arcade Kollection

Looking for something fun to play, like space shooters, or a Get Games code for COD4 or GMG code for TotD as I can't buy them from italy.