Have

Humble Weekly Sale: Rochard Gift URL - 1 TF2 key
Rochard
Hard Times DLC

Steam Keys - 2 for 1 TF2 key
Cargo Commander
Dead Pixels
Dungeons: The Dark Lord
Gumboy Crazy Adventures
iBomber Defense Pacific
Kung Fu Strike: The Warrior's Rise
Lunar Pack (Wake & Lunnye Devitsy)
NecroVision
Rochard
Shattered Haven
The Journey Down: Chapter 1
Tidalis

Steam Keys - 3 for 1 TF2 key
Fractal
Gratuitous Space Battles
NightSky
Waking Mars

Desura Keys - 3 for 1 TF2 key
8-Bit Commando
Dwarf Quest
Freedom Fall
Holy Avatar vs. Maidens of the Dead
King Arthur's Gold
Smash Cat

Desura Keys - 4 for 1 TF2 key
Blackwell Legacy, Blackwell Unbound & Blackwell Convergence
Blackwell Deception
Chester
Fairy Bloom Freesia
Hacker Evolution
Hacker Evolution Untold
Hacker Evolution Duality
Paranormal
RADical ROACH
Survivor Squad
Woodle Tree

Magicka DLCs
Marshlands DLC
Party Robes DLC

Coupons
50% OFF Anna - Extended Edition
66% OFF Starvoid
10% OFF Toki Tori 2+

Humble Store Keys and Download Pages
Don't Starve Chrome key
HB Android 6 Unclaimed Download Page - Unclaimed but with used Aquaria, McPixel, Organ Trail: Director's Cut and Stealth Bastard Deluxe Steam keys. You get Steam keys for Fractal, Nightsky and Waking Mars and DRM-free download of the games.
Positech Unclaimed Download Page - Unclaimed but with used Steam keys. You get DRM-free download of Kudos 2, Gratuitous Space Battles, Gratuitous Tank Battles and multiplayer keys for Gratuitous Space Battles and Gratuitous Tank Battles.
Rochard Unclaimed Download Page - Unclaimed but with used Steam keys. You get DRM-free download of the game + DLC and Rochard Art Book.

Want

TF2 keys

Cards(Open to any cards, but mostly interested in the ones from these games listed)
Bleed
King's Bounty: Warriors of the North
La-Mulana
Star Wolves 3: Civil Wars
Tales from Space: Mutant Blobs Attack

Indie keys from past bundles
1000 Amps
A Stroke of Fate: Operation Valkyrie
Auditorium
Blueberry Garden
Death to Spies
Diamond Dan
Disciples II: Gallean's Return
DogFighter
Fate of the World
Fieldrunners
Hamilton's Great Adventure
Hoard + DLC
STORM: Frontline Nation
Two Worlds
Zero Gear