I have 50 trades on /r/SteamGameSwap, which include codes and Paypal.

Steam Gifts

7 Days to die

Deadlight

Batman: Arkham City Game of the Year Edition

Natural Selection 2

Time Gentlemen, Please! and Ben There, Dan That! Special Edition Double Pack

Fable

Steam Codes and URLS

Enslaved: Odyssey to the West Premium Edition

Inversion (region-locked to North America and nearby countries only - see country list here).

Killing Floor Bundle

Draw a Stickman Epic

Risen 2, Sacred 2 Gold, Saints Row 2, and Saints Row: The Third

Mirror's Edge

Command & Conquer: Red Alert 3 - Uprising

Mark of the Ninja

Brutal Legend

Trine 2: Complete Story

Eets Munchies

FTL: Faster Than Light

Blackwell Deception

Batman™: Arkham Asylum GOTY

The Lord of the Rings: War in the North

Scribblenauts Unlimited

Mortal Kombat Kollection

F.E.A.R. 2: Project Origin

F.E.A.R. 3

Arma II

Take On Helicopters

UFO: Afterlight

Alpha Prime

ARMA: Gold Edition

ARMA Tactics

Overlord, Overlord: Raising Hell, Rise of the Argonauts, Operation Flashpoint: Dragon Rising, Operation Flashpoint: Red River

1953 - KGB Unleashed

Grimm (Complete Series)

IL-2 Sturmovik: 1946

Infected: The Twin Vaccine

Shufflepuck Cantina Deluxe

Aerena - Clash of Champions (Early Access)

Origin Codes

Dead Space

Dead Space 3

Burnout Paradise: The Ultimate Box

Crysis 3 Maximum Edition

Medal of Honor

Mirror's Edge

Command & Conquer: Red Alert 3 - Uprising

Populous

Desura codes

Ether Vapor Remaster

Rise of the Ravager

Satazius

War of the Human Tanks

Fairy Bloom Freesia

Paranautical Activity

RADical ROACH

Millennium 2: Take me Higher

Driftmoon

Shufflepuck Cantina Deluxe

The Body Changer

Ultionus: A Tale of Petty Revenge