Great idea, thank you for this topic!

I would also like to drop in a few titles:

The most exciting ones:
Da New Guys (TAKEN)
Dawn of Fantasy
Paranormal (TAKEN)
Chaos Ride x2 (this game was removed from Steam, so I think only available on Desura)

The other cool games:
Admiral Nemo (TAKEN)
Blue Rose
Bret Airborne (TAKEN)
Duplicity ~ Beyond the Lies
Grand Class Melee 2 (TAKEN)

And the freely given before:
BoxesWithGuns
SanctuaryRPG

I'll drop my stuff as well:

Still available

Dead Hungry Diner
Deadly 30
Jibs Arcade
Porradaria Upgrade
Project Night
Retro Arcade Adventure Remade
Rhythm Destruction (x2)
Unhack
Will Fight for Food
Yelaxot

No longer available (The list's purpose is to keep track of which Desura keys have been redeemed so far).

6180 the moon Deluxe
Another Perspective
BIK
Chester
Chronicles of a Dark Lord: Episode 1 Tides of Fate
Dark Scavenger
DROD: Gunthro and the Epic Blunder
Dwarf Quest
eXceed - Gun Bullet Children
Furry 2 Ultimate Edition
Gravi
Greed: Black Border
Home Sheep Home 2
Inescapable
KAMUI
Kilgazar
Little Gardens
Master Reboot
Obludia
QuestRun
Residue
SUGURI
The Body Changer
The Grave Digger
The Perfidious Petrol Station

Thanks as well to Grargar for the game!

Send me a chat message if you want any of this Desura keys (I think all are unused, but I might be mistaken).

Astro Emporia
Bik
BoxesWithGuns
Dangerous Insects
Furry 2 - Ultimate Edition (TAKEN)
Frederic - Ressurection of Music (TAKEN)
One Day For Ched
Pluck (TAKEN)
Slinki (TAKEN)
Song of the Myrne: What Lies Beneath (TAKEN)
Steam and Metal (TAKEN)
Sumo Revise!
Super Hipster Lumberjack
The Race for the White House

Ah yes, I forgot about old Desura keys in Humble Bundle...have two of them:

Dungeons of Dredmor (taken)
Humble Indie Bundle 2 (taken)

I have the following to give:

BoxWithGuns x5
Chester
GEARCRACK Arena
GunWorld
Porradaria Upgrade
SanctuaryRPG Classic x5

Send me a chat message for a key.

Box Out! (Taken)
dUpLicity ~Beyond the Lies~ (Taken)
Grand Class Melee 2 (Taken)
Hidden Runaway (Taken)
Retro Arcade Adventure Remade (Taken)
Square Heroes (Taken)
Trace Vector (Taken)

Thank you again, much appreciated!

For the folks posting bundle keys, I'm assuming one can't redeem individual titles out of them, correct? Because I'm very interested in getting Samorost 2, but have just about everything else from Humble Indie Bundle #2 already.

Correct, there is just one key for the entire bundle. And it is hard to find anybody around here who does not have at least some games from those earlier bundles. IMHO, at this point it is better to redeem a key just for one game than just leave the key to rot. If you want that bundle, send me a PM.

Have these (can't guarantee that all of them are unused, but most should be ok)

AVAILABLE

Adventures of Shuggy
Battlepaths
Cognition Episode 1: The Hangman
Dead Hungry Diner
Don't Move
dUpLicity ~Beyond the Lies~
HeShe (or Shehe)
Fairy Bloom Freesia
IslaBomba
Magic Meisters - Alpha
ONE DAY for Ched
Pahelika: Revelations HD
Paranautical Activity
Road so Far
SanctuaryRPG
Stingray

TAKEN

Amygdala
Astroloco: Worst Contact
Blue Rose
Hyper Gauntlet
N.P.P.D. RUSH: The Milk of UV
Saturday Morning RPG
The Adventures of Mr. Bobley
The Legend of the Artifact

min rep - 25

If you want any of these games, contact me via chat.

I'd like to snap up Inescapable, if I may.

And, everyone else, Another Perspective is quite a fun game!

Snappity-snap!

I have some extra keys, if anyone would like one just ask.

Airship Dragoon
Hypersonic 4 x4
Paranautical Activity
Reversion - Chapter 2: The Meeting x4 (2 taken, 2 left)
Soulcaster (taken)
Soulcaster 2 (taken)
The Cat Lady (taken)

Very kind of you. If no one else asks for it in the next day or two, I'd be glad to redeem it. Ta!

Found yet another nook with a few keys - old Indie Gala bundles before they just switched to Steam altogether. These are more or less checked and I don't think any of them were redeemed. As usual, PM me is you want anything from this list:

Alchemy Mysteries: Prague Legends
Always Remember Me
Astro Emporia
Banzai Pecan
Battlepaths
Dawnstar
Luna's Wandering Stars
Magic Meisters
Mind Dead
Omegalodon
One Day for Ched
Oniken
Paranormal
Pester
Pulse Shift
Super Panda Adventures
Undead Legions
Voyager
Yrminsul

Edit: Removed claimed items.

Thank you for the Space Tank game, samlii! :)