Steam
Toki Tori
World of Goo, Anomaly, Osmos, and EDGE (one key for all of them -> 30 trading cards)
Little Inferno
Giana Sisters: Twisted Dreams
Dust: An Elysian Tail
Guacamelee! Gold Edition
FEZ
Humble Indie Bundle #3 (12 games -see below- in one single key -> 75 trading cards)
Wizorb, BIT.TRIP.RUNNER, Gratuitous Space Battles, and Jamestown (one key for all of them -> 30 trading cards)
Cave Story+
BrĂ¼tal Legend
LIMBO
Bastion
Dead Space
Revenge of the Titans
Deponia
Humble Indie Bundle #3 content:
And Yet It Moves
And Yet It Moves Soundtrack
Atom Zombie Smasher
Atom Zombie Smasher Original Soundtrack
Braid
Cogs
Cortex Command
Crayon Physics Deluxe
Hammerfight
Machinarium
Machinarium Soundtrack
Osmos
Revenge of the Titans
Steel Storm: Burning Retribution
VVVVVV
Origin
Dead Space
Burnout Paradise: The Ultimate Box
Crysis 2 Maximum Edition
Medal of Honor
Mirror's Edge
Command & Conquer: Red Alert 3 - Uprising
Peggle Deluxe, Bejeweled 3, Bookworm Deluxe, Escape Rosecliff Island, and Feeding Frenzy 2 Deluxe (one key for all of them -> 20 trading cards)
All games are cd-keys.
Rates:
Steam Games - 10 trading cards
Desura - 5 trading cards
Origin - 5 trading cards
Steam
Toki Tori
World of Goo, Anomaly, Osmos, and EDGE (one key for all of them -> 30 trading cards)
Little Inferno
Giana Sisters: Twisted Dreams
Dust: An Elysian Tail
Guacamelee! Gold Edition
FEZ
Humble Indie Bundle #3 (12 games -see below- in one single key -> 75 trading cards)
Wizorb, BIT.TRIP.RUNNER, Gratuitous Space Battles, and Jamestown (one key for all of them -> 30 trading cards)
Cave Story+
BrĂ¼tal Legend
LIMBO
Bastion
Dead Space
Revenge of the Titans
Deponia
Humble Indie Bundle #3 content:
And Yet It Moves
And Yet It Moves Soundtrack
Atom Zombie Smasher
Atom Zombie Smasher Original Soundtrack
Braid
Cogs
Cortex Command
Crayon Physics Deluxe
Hammerfight
Machinarium
Machinarium Soundtrack
Osmos
Revenge of the Titans
Steel Storm: Burning Retribution
VVVVVV
Origin
Dead Space
Burnout Paradise: The Ultimate Box
Crysis 2 Maximum Edition
Medal of Honor
Mirror's Edge
Command & Conquer: Red Alert 3 - Uprising
Peggle Deluxe, Bejeweled 3, Bookworm Deluxe, Escape Rosecliff Island, and Feeding Frenzy 2 Deluxe (one key for all of them -> 20 trading cards)