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The Humble Weekly Bundle is for Mastertronic titles.
Pay what you want ($1 min for Steam keys) for:
Montague’s Mount
Blast Em! + Source Code
May’s Mysteries: The Secret of Dragonville
The Shopkeeper
Richard & Alice
Speedball 2 HD
The Chaos Engine
Beat the average (currently $3.58) for above plus:
Concursion
10 Second Ninja
0RBITALIS
Over 9000 Zombies!
Pay $15 minimum for above plus:
Tango Fiesta
Dream
Runers
All titles activate on Steam.