For the small, or large, price of whatever you want to pay, you'll score DRM-free versions of Braid, Machinarium, Osmos, Revenge of the Titans and Cortex Command for Windows, Mac and Linux. This is the Linux debut of Braid, too.

Purchasers can divvy up their purchase as they please, specifying which proportion goes to the developers, the Electronic Frontier Foundation, charity Child's Play and organiser Wolfire Games. As Wolfire has no game of its own in the bundle this time around, you can tip them to help encourage and support future Humble Bundles.

The original Humble Indie Bundle, which packed World of Goo, Gish, Aquaria, Lugaru HD, Samorost 2 and Penumbra Overture, raked in $1,273,613 from 138,813 sales.

Last week, the original Humble Indie Bundle scored Steam activation, letting customers add the games to their Steam account for free. Wolfire's John Graham tells us that there's no such arrangement in place for Bundle #2 and points out that two of its games aren't on Steam at all, though he's "optimistic given how they hooked us up last time."

As Revenge of the Titans developer Puppy Games revealed only yesterday that the tower defense was launching today, due to cost $27.72, it's a pleasant surprise to see it turn up in the Bundle. The recommended price for the Bundle's individual games comes to around $85, combined.

The Humble Indie Bundle #2 will only be available until 4pm EST on Tuesday, December 21, so get your skates on.