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The Humble Indie Bundle Allstars deal is live.
Pay what you want ($1 min for Steam keys) for:
World of Goo
Super Meat Boy
Dustforce DX
Beat the average (currently $4.90) for above plus:
Dungeon Defenders Collection
LIMBO
Braid
Beat the average + $1 (currently $5.90) for above plus:
Risk of Rain
Antichamber
All titles activate on Steam.