These are the games that I have duplicates for (and the platforms that they are redeemed at):
Free gift of Insurgency -
https://www.humblebundle.com/?gift=TYkxnAShw35PBKwZ -Let me know when this is claimed, please!
GOG:
MAGRUNNER: DARK PULSE
The Witcher 2
Steam:
3079
3089
8BitBoy
Aaaaah
Adventures of Shuggy
Aerena - Clash of Champions
Alien Shooter 2: Conscription
Alpha Kimori Episode One
Astro Tripper
Avencast
Avencast: Rise of the Mage
Aztaka (x2)
Ballpoint Universe - Infinite (x2)
Bang Bang Racing
Beat Hazard
Betrayer
Blades of Time Limited Edition
Borealis
Bridge It(plus)
Bumbledore
Chaos on Deponia
Chrome SPecforce
Chrome
Chronicles of a Dark Lord: Ep. 1 Tides of Fate Complete
Circuits
Clickr
Crystal Catacombs
Dark Shadows - Army of Evil
Day One : Garry's Incident
Deadly 30
Deadly Premonition:The Director's Cut
Deponia
Depth Hunter 2: Deep Dive
Depths of Peril
Dungeonland
Dungeons the Eyes of Draconis
Dungeons: The Dark Lord
Edge
Europa Universalis 3
Fantasy Wars
FEAR
Fieldrunners 2
Fieldrunners
Fortix 2
Game Tycoon 1.5
Glacier 3: Meltdown
Goodbye Deponia
Gravity Badgers
Greed: Black Border
GTR Evolution (x2)
Gumboy Tournament
Hacker Evolution Games
Haegemonia: Legions of Iron
Haegemonia: The Solon Heritage
Half Minute Hero: Super Mega Neo Climax Ultimate Boy
Hard Reset (x2)
Hero of the Kingdom
Heroes of the Kingdom
Hoard complete
Huntsman: The Orphanage
Hydrophobia Prophecy (x2)
Ichi
Ignite
Inescapable
Insane 2
Inside the Gear
Interstellar Marines
Iron Grip: Warlord
Kairo
Kill the Bad Guy
King Arthur II:Role Playing Wargame
Kingdom Rush
King's Bounty: The Legend
Knights of Pen and Paper +1 Edition
Kraven Manor (x2)
Kung Fu Strike
Legends of Aethereus
Little Racers Street
Loren the Amazon Princess
Lovely Planet
Lucius (x2)
Machines at War 3
Magical Diary
Major Mayhem
Mata Hari
Melissa K. and the Heart of Gold Collector's Edition
Metal Drift (x2)
Miner Wars 2081
Mini Motor Racing Evo (x3)
Monday Night Combat
Mortal Kombat Arcade Kollection
Mutant Storm Reloaded
Naval Warfare
Orbital Gear
Painkiller: Recurring Evil
Painkiller: Redemption
P.A.M.
Planetary Annihilation
Pressure
Pressured
Proxy Blade Zero
Psichodelya (x2)
Puzzle Kingdoms (x3)
Q.U.B.E.: Director's Cut
Race Injection
Race Injection (x3)
RACE: The WTCC Game + Caterham Expansion
Race On
Razor2: Hidden Skies (x2)
Real Boxing
Real World Racing
Rise of the Argonauts
Rise of the Triad (2013)
Rhythm Destruction
Risk of Rain
Robowars
Rock of Ages
Rush
Rush for Glory
Sang-Froid - Tales of Werewolves
Savant - Ascent
Scratches
Scribblenauts Unlimited
Sequence
Shatter Horizon
Shiny the Firefly
Showtime
Snuggle Truck
Space Pirates and Zombies (x2)
SpaceChem
SpaceChem: 63 Corvi DLC
Sparkle 2 Evo
Speed Kills
Spirit of War
Star Wolves 3
Street Racing Syndicate
Supreme Ruler 2020 Gold
Sweet Lily Dreams
Tank Universal
The 39 Steps
The Culling of the Cows
The Gear
The Moon Sliver
Toki Tori (2)
Toki Tori 2+
Trainz 12
TRIP: Steam Edition
Two Brothers
Two Worlds 2
UFO Extraterrestrials Gold
Warfare
Warlock
Wasteland Angel
Waves (x2)
Why So Evil
Z
Z: Steel Soldeirs
Zack Zero (x2)
Zeno Clash
Zombie Shooter
Zombie Shooter 2
Desura:
Aeon Command
BANZAI PECAN: Last Hope for the Young Century
Basketbelle
Blue Rose
Boxes with Guns
Cafe 0
Doom and Destiny
Fatal Theory
Gravity Badgers
Great Permutator
Laxius Force
Loot Hero
Luminoso
Make It Indie!
Metal Planet
Millenium - A New Hope
Miner Warfare
Ocean City Racing
Orborun
Pavel Quest
Power-Up
Pulse Shift
Samphi
SBX: Invasion
SickBrick
Stardrone
Steam and Metal
Super Panda Adventures
Treeker: The Lost Glasses
Others:
Guilty Gear Isuka (Gamersgate)
Many thanks to DeMignon for helping me format this list into something easier on the eyes!