The newest Humble Bundle offer features a multitude of indie games, including To The Moon, Joe Danger 2: The Movie, Papo & Yo, Runner2 and more.
As always, gamers can choose what they want to pay for the titles, however, paying above the average gives them special deals. In this particular indie bundle, you can unlock Reus and Surgeon Simulator by paying over $4.99. When Humble Bundle X first opened up, the first 1000 purchases of at at least $9.99 unlocked another game called Starbound (screenshot courtesy of NeoGAF user MRORANGE):
Starbound is currently sold out as of now, but you can still catch the other titles buy going here. A trailer for Humble Indie Bundle X is also just below.