A minor update on Wolfire's awesome Humble Indie Bundle offer: anyone who purchases (or had already bought) the pack will get Amanita Design's Samorost 2 for free. That's six great games in total, for whatever price you want to pay for them.

The promotion is set to end in about ten hours from now, and part of the proceeds from the sale will go to charity, so there's really no excuse not to participate for a good cause. The games included are DRM-free versions of Aquaria, World of Goo, Lugaru HD, Gish and Penumbra: Overture across all three platforms (Mac, Windows and Linux), and by supporting the initiative you're sending out a strong message to the developers that you'd want to see more of these deals in the future.

We're keeping an eye on the total raised counter as well, since Wolfire Games had stated (and I've confirmed it with Jeff) that source codes for Gish, Penumbra: Overture and Lugaru will be released if it passes the one million mark.