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The Humble Weekly Bundle is called Surprise Attack.
Pay the minimum ($1 if you want Steam keys) for:
Oscura: Lost Light (Steam, DRM Free)
Metrocide (Steam, DRM Free)
OTTTD (Steam, DRM Free)
Pay $6 minimum for above plus:
A Druid’s Duel (Steam, DRM Free)
Particulars (Steam, DRM Free)
Robocraft Pack (Steam, DRM Free)
Pay $12 minimum for above plus:
Vertiginous Golf (Steam, DRM Free)
Screencheat 2-pack (Steam, DRM Free)