Humble Bundle is rolling out a new bundle every day for the next two weeks, including revivals of older bundles and some brand new ones. New ones will become available daily at 11 AM PT until May 27, and it just kicked off with a revised version of last year's Deep Silver bundle.
The Humble Bundle site has the details. This version of the Deep Silver bundle includes Saints Row 2, Saints Row: The Third, Risen 2: Dark Waters, and Sacred 2: Gold Edition. If you pay more than the average--currently approximately $6--you'll also get Dead Island GOTY Edition, The Full DLC Package for Saints Row 3, Metro 2033, Risen, and Sacred Citadel. If you pay more than a flat $9, the bundle throws in Dead Island: Riptide Complete Edition.
Like all Humble Bundles, proceeds will go towards content creators and charities. Specifically, you can benefit the Red Cross and Child's Play, and get far more games than you'll ever have time for in the process.