[H]

Thief gold - Key gift
Hitman: Codename 47 - Key gift
Hitman 2: Silent Assassin - Key gift
Daikatana - Key gift
Anachronox - Key gift
Deus Ex: The Fall - Key gift
Battlestations: Midway - Key gift
Deus Ex: Invisible War - Key gift
Broken Sword 2 - Key gift
Bridge Constructor - Key gift

[W]

Other games and/or TF2/CS:GO Keys

Secrets of Raetikon
Crysis
The Misadventures of P.B. Winterbottom
Bleed
Dustforce
Nihilumbra
Tales from Space: Mutant Blobs Attack
Element4l
Gods Will Be Watching
Unepic
Tom Clancy's Rainbow Six: Vegas 2
Angry Video Game Nerd Adventures
The Bridge
Titan Attacks
Dream
The Stanley Parable
Nidhogg
Spelunky
Rogue Legacy
L.A. Noire
Rust

You can check my Steam wishlist, you will find plenty of games I would trade for.
If you want to trade game key, you will have to go first.