The listing, Huge Steam Games Pack (30 Unique Game Keys) has ended.
For every 2500 credits you'll get to choose 1 Steam game key. If GIN is used you'll get all the game keys.
Fearless Fantasy: http://store.steampowered.com/app/282100/
Broken Sword: Director's Cut: http://store.steampowered.com/app/57640/
Pool Nation: http://store.steampowered.com/app/254440/
Spy Chameleon - RGB Agent: http://store.steampowered.com/app/297490/
Duke Nukem: Manhattan Project: http://store.steampowered.com/app/240200/
Strategic War In Europe: http://store.steampowered.com/app/283000/
The Campaign Series: Fall Weiss: http://store.steampowered.com/app/283020/
Riptide GP2: http://store.steampowered.com/app/257790/
Lilly Looking Through: http://store.steampowered.com/app/250030/
The Albino Hunter: http://store.steampowered.com/app/355520/
Residue: Final Cut: http://store.steampowered.com/app/265790/
Escape Machines: http://store.steampowered.com/app/363490/
Cubetractor: http://store.steampowered.com/app/235720/
Realms of the Haunting: http://store.steampowered.com/app/292390/
Litil Divil: http://store.steampowered.com/app/283430/
Spoiler Alert: http://store.steampowered.com/app/283230/
Not The Robots: http://store.steampowered.com/app/257120/
Nosferatu: The Wrath of Malachi: http://store.steampowered.com/app/283290/
Dementium II HD: http://store.steampowered.com/app/217100/
Magnetic By Nature: http://store.steampowered.com/app/296510/
Final Dusk: http://store.steampowered.com/app/337420/
Pixel Piracy: http://store.steampowered.com/app/264140/
Retro/Grade: http://store.steampowered.com/app/222660/
Ninja Guy: http://store.steampowered.com/app/340630/
Battleplan: American Civil War: http://store.steampowered.com/app/285130/
Dogfight 1942: http://store.steampowered.com/app/217790/
Commando Jack: http://store.steampowered.com/app/299260/
Cannon Fodder 3: http://store.steampowered.com/app/209750/
Chip: http://store.steampowered.com/app/275470/
Hacker Evolution Duality: http://store.steampowered.com/app/70120/