Humble Bundle offers downloads of the Humble Indie Bundle 9 4-Game Bundle for Windows and Mac for whatever you want to pay. If you opt to pay the bare minimum of $1, you'll get Trine 2: Complete Story (pictured), Mark of the Ninja, Eets Munchies, and Brutal Legend. That's $55 under the lowest price we could find for downloads of these games elsewhere. (Except Eets Munchies, as it was unavailable elsewhere.) If you pay more than the average, currently $4.07, you'll also get FTL: Faster Than Light and Nihon no FEZ. Your contribution can be donated to charity (Electronic Frontier Foundation, the Child's Play Charity, or Watsi), the developers, or Humble Bundle Inc. Deal ends September 25 at 2 pm ET.

Of note, these games require a Steam account for activation.