These area all my unused humble bundle keys, note that not everything on this list is up for trade, because some of these are worth more than than this game, let me know which ones interest you. I also have a ton of Groupees keys, but I'm not sure if it's worth listing them all too.
Ghostship: Aftermath
Eador Masters of the broken world
Gun Monkeys
Dungeon Keeper GOG key
A Valley Without Wind 1 and 2 Steam Key
A Virus Named TOM
AI War + 4 DLC packs & Tidalis Steam Key
AI War: Vengeance Steam Key
Antichamber
Awesomenauts
Awesomenauts Cluck Costume
Bastion Steam Key
Batman™: Arkham Asylum GOTY
Batman™: Arkham City GOTY
Batman™: Arkham Origins DLC
Battlefield 3 Origin Key
Beatbuddy: Tale of the Guardians
BioShock
Burnout Paradise: The Ultimate Box Origin Key
Burnout Paradise: The Ultimate Box Steam Key
Capsized
Cave Story+
Closure Steam Key
Command & Conquer: Red Alert 3 - Uprising Origin Key
Containment: The Zombie Puzzler
Cortex Command Steam Key
Crysis 2 Maximum Edition Origin Key
Crysis 2 Maximum Edition Steam Key
Cubetractor
Dead Space 3 Origin Key
Dead Space Steam Key
Deadlight
Dear Esther
Dungeon Defenders + All DLC Steam key
Dungeonland Steam Key
Dust: An Elysian Tail
Dwarfs!?
Eets Munchies Steam Key
English Country Tune
Europa Universalis 3 Complete Steam Key
FEZ
FTL: Faster Than Light Steam Key
Fist Puncher
Frozen Synapse Steam/Multiplayer Key
GIGANTIC ARMY
Galactic Civilizations II: Ultimate Edition
Giana Sisters: Twisted Dreams
Gish Steam Key
Gone Home With Soundtrack
Gotham City Impostors: Professional Kit
Guacamelee! Gold Edition
Guardians of Middle-earth
Guardians of Middle-earth: Smaug's Treasure DLC
Gunpoint
Hammerwatch
Hotline Miami
Humble Frozenbyte Bundle Steam Key
Humble Indie Bundle #2 Steam Key
Humble Indie Bundle #3 Steam Key
Humble Introversion Bundle Steam Key
Indie Game: The Movie Steam Key
Q.U.B.E
Redshirts
Jamestown Deluxe
Killing Floor
King's Bounty: Armored Princess Steam Key
King's Bounty: The Legend Steam Key
King's Bounty: Crossworlds Steam Key
LIMBO
LUFTRAUSERS
Legend of Grimrock
Leviathan: Warships Steam Key
Little Inferno
Mark of the Ninja Steam Key
Medal of Honor Steam Key
Men of War Steam Key
Men of War: Assault Squad GOTY Steam Key
Men of War: Red Tide Steam Key
Mirror's Edge Steam Key
Monaco: What's Yours Is Mine
Mortal Kombat Kollection
One Way Heroics
Papers, Please
Populous Origin Key
Prison Architect
Proteus
Race the Sun
Receiver
Rocketbirds: Hardboiled Chicken
Sang-Froid: Tales of Werewolves
Shank 2
Snapshot Steam Key
Solar 2
Soundodger+ and Soundtrack
Starseed Pilgrim
SteamWorld Dig
Stronghold Crusader HD
Super Puzzle Platformer Deluxe
The Basement Collection
The Binding of Isaac + Wrath of the Lamb DLC
The Bridge
The Bureau: XCOM Declassified
The Darkness II
The Incredible Adventures of Van Helsing - Complete Pack
The Lord of the Rings Online: Steely Dawn Starter Pack
The Lord of the Rings: War in the North
The Showdown Effect Steam Key
The Sims 3 Date Night Key
The Sims 3 High End Loft Stuff Key
The Sims 3 Key
The Sims 3 Late Night Key
The Swapper
Thomas Was Alone
Tiny and Big in Grandpa's Leftovers
Trine 2: Complete Story Steam Key
Tropico 3
Unholy Heights
War of the Roses: Kingmaker Steam Key
Warlock Steam Key
Wizorb, BIT.TRIP.RUNNER, Gratuitous Space Battles, and Jamestown Steam Key
These area all my unused humble bundle keys, note that not everything on this list is up for trade, because some of these are worth more than than this game, let me know which ones interest you. I also have a ton of Groupees keys, but I'm not sure if it's worth listing them all too.
Ghostship: Aftermath
Eador Masters of the broken world
Gun Monkeys
Dungeon Keeper GOG key
A Valley Without Wind 1 and 2 Steam Key
A Virus Named TOM
AI War + 4 DLC packs & Tidalis Steam Key
AI War: Vengeance Steam Key
Antichamber
Awesomenauts
Awesomenauts Cluck Costume
Bastion Steam Key
Batman™: Arkham Asylum GOTY
Batman™: Arkham City GOTY
Batman™: Arkham Origins DLC
Battlefield 3 Origin Key
Beatbuddy: Tale of the Guardians
BioShock
Burnout Paradise: The Ultimate Box Origin Key
Burnout Paradise: The Ultimate Box Steam Key
Capsized
Cave Story+
Closure Steam Key
Command & Conquer: Red Alert 3 - Uprising Origin Key
Containment: The Zombie Puzzler
Cortex Command Steam Key
Crysis 2 Maximum Edition Origin Key
Crysis 2 Maximum Edition Steam Key
Cubetractor
Dead Space 3 Origin Key
Dead Space Steam Key
Deadlight
Dear Esther
Dungeon Defenders + All DLC Steam key
Dungeonland Steam Key
Dust: An Elysian Tail
Dwarfs!?
Eets Munchies Steam Key
English Country Tune
Europa Universalis 3 Complete Steam Key
FEZ
FTL: Faster Than Light Steam Key
Fist Puncher
Frozen Synapse Steam/Multiplayer Key
GIGANTIC ARMY
Galactic Civilizations II: Ultimate Edition
Giana Sisters: Twisted Dreams
Gish Steam Key
Gone Home With Soundtrack
Gotham City Impostors: Professional Kit
Guacamelee! Gold Edition
Guardians of Middle-earth
Guardians of Middle-earth: Smaug's Treasure DLC
Gunpoint
Hammerwatch
Hotline Miami
Humble Frozenbyte Bundle Steam Key
Humble Indie Bundle #2 Steam Key
Humble Indie Bundle #3 Steam Key
Humble Introversion Bundle Steam Key
Indie Game: The Movie Steam Key
Q.U.B.E
Redshirts
Jamestown Deluxe
Killing Floor
King's Bounty: Armored Princess Steam Key
King's Bounty: The Legend Steam Key
King's Bounty: Crossworlds Steam Key
LIMBO
LUFTRAUSERS
Legend of Grimrock
Leviathan: Warships Steam Key
Little Inferno
Mark of the Ninja Steam Key
Medal of Honor Steam Key
Men of War Steam Key
Men of War: Assault Squad GOTY Steam Key
Men of War: Red Tide Steam Key
Mirror's Edge Steam Key
Monaco: What's Yours Is Mine
Mortal Kombat Kollection
One Way Heroics
Papers, Please
Populous Origin Key
Prison Architect
Proteus
Race the Sun
Receiver
Rocketbirds: Hardboiled Chicken
Sang-Froid: Tales of Werewolves
Shank 2
Snapshot Steam Key
Solar 2
Soundodger+ and Soundtrack
Starseed Pilgrim
SteamWorld Dig
Stronghold Crusader HD
Super Puzzle Platformer Deluxe
The Basement Collection
The Binding of Isaac + Wrath of the Lamb DLC
The Bridge
The Bureau: XCOM Declassified
The Darkness II
The Incredible Adventures of Van Helsing - Complete Pack
The Lord of the Rings Online: Steely Dawn Starter Pack
The Lord of the Rings: War in the North
The Showdown Effect Steam Key
The Sims 3 Date Night Key
The Sims 3 High End Loft Stuff Key
The Sims 3 Key
The Sims 3 Late Night Key
The Swapper
Thomas Was Alone
Tiny and Big in Grandpa's Leftovers
Trine 2: Complete Story Steam Key
Tropico 3
Unholy Heights
War of the Roses: Kingmaker Steam Key
Warlock Steam Key
Wizorb, BIT.TRIP.RUNNER, Gratuitous Space Battles, and Jamestown Steam Key
Zeno Clash
Zeno Clash 2
Nuclear Dawn