STEAM:
Aquaria
Avernum: Escape from the Pit
Bastion
Broken Sword: Director's Cut
Brutal Legend
Civ 3
Civ 4
Darkness II
Deadlight
Draw a Stickman Epic
Eador: Masters of the Broken World
Edna and Harvey's New Eyes
Europa Universalis 3 Complete
Fez
Fractal
Frozen Synapse x2
Gemini Rue
Greed Corp
Guns of Icarus Online
Hammerfight
Hoard
Ittle Dew
Kung Fu Strike
LIMBO
Little Inferno
Lucius
Major Mayhem
Mirror's Edge
Monaco: What's Yours Is Mine
Nightsky HD x2
Offspring Fling
Orcs Must Die GOTY
Papa & Yo
Red Orchestra: Ostfront 41-45
Reus
Saira
Serious Sam 3: BFE
Showdown Effect
Spec Ops: The Line
Street Racing Syndicate
Surgeon Simulator
Survivor Squad
The Bureau: XCOM Declassified
Vessel
Waking Mars
Warlock



GOG:
Neverwinter Nights: Diamond Edition, expires June 4th, 2015
Wasteland 1 (GOG), expires September 4th, 2015
The Bard's Tale (GOG), expires September 4th, 2015
Lionheart, expires Oct 22, 2015


Other:
Humble Bundle Serious Weekly