Humble Weekly Bundle Presented by RPS

Unfortunately not all of this Rock, Paper, Shotgun-chosen bunch has Steam keys, or is DRM-free, nor are cross-platform. Which makes this a bit of an oddball selection as the majority of bundle games have all of those. World of Goo is not DRM-free, AudioSurf  is Windows-only and Armageddon Empires has no Steam key.

So for $1 you get World of Goo, AudioSurf, Armageddon Empires and Dungeons of Dredmor Complete. The "Complete" means it comes with the Realm of the Diggle Gods and Conquest of the Wizardlands DLC Packs, along with its soundtrack. For your $1 you also get the World of Goo soundtrack.

No middle tier - pay $6 and up to also get Amnesia: The Dark Descent, Teleglitch: Die More Edition + Guns and Tunes DLC and AI War: Fleet Command with The Zenith Remnant, Children of Neinzul & Light of the Spire DLC. You also get soundtracks for all three.

Purchase this bundle and support Electronic Frontier Foundation and Doctors Without Borders.

• World of Goo is a puzzle game where you have to help the balls of goo escape levels.
• Audiosurf features you racing against your own music.
• Armageddon Empires is a strategy game in a postapocalyptic world.
• Dungeons of Dredmor is an RPG with simple looks and a great sense of humour.
• Amnesia: The Dark Descent has you trying to survive and recover your memories.
• Teleglitch: Die More Edition is a roguelike top-down procedurally-generated shooter.
• AI War: Fleet Command is a strategy that sees you controlling fleets of ships against AI.