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The Humble Mozilla Bundle is live.
Pay what you want ($1 minimum for Steam keys) for:
Super Hexagon
AaaaaAAaaaAAAaaAAAAaAAAAA!!! for the Awesome
Osmos
Zen Bound 2
Dustforce DX
Beat the average (currently $5.09) for:
Voxatron
FTL: Advanced Edition
Mystery Game
Pay $8 or more for:
Democracy 3
All activate on Steam and all can be played within your browser.