[H] Killing Floor, Garry's Mod, and More [W] Paypal, X3: TC, Bioshock: Infinite, Offers

I'm mostly looking for paypal, but I'm open to offers (preferably mac games)

Killing Floor

Garry's Mod

Natural Selection 2

Magicka + 2 DLC

Sid Meier’s Ace Patrol: Pacific Skies

Dwarfs!?

Orcs Must Die! GOTY

The Bard's Tale

Solar 2

Sid Meier's Civilization III: Complete

Sid Meier’s Ace Patrol

Bad Hotel

Sid Meier's Railroads!

Zeno Clash

Zeno Clash 2

I want:

Paypal

X3: TC

But open to offers. I'll take bundle or steam key. Thanks.
EDIT: Add me or comment below for offers