The original titles to Humble Indie Bundle 9 included Trine 2: Complete Story, Mark of the Ninja, Eets Muncies, Brütal Legend, FTL: Faster Than Light, and FEZ. Of those game titles, Mark of the Ninja, Eets Munchies, and FEZ premiered on Linux for the first time as part of HIB #9.
The new titles include the action-platformer Rocketbirds: Hardboiled Chicken, the action-puzzler A Virus Named TOM, the puzzle-platformer LIMBO, and the action-RPG Bastion.
If you're interested in any of these cross-platform titles, visit HumbleBundle.com in the next six days. As of the time of writing, the floating average price for the entire collection of games is just $4.62 USD.