Since this is the seventh Humble Indie Bundle you know how it works, you pay whatever price you want for a group of great indie games.
Darwinia, Multiwinia, DEFCON and
Uplink are the four games primarily available in this bundle. However, the promotion also includes two tech demos,
Subversion City Generator and
Voxel. If you pay above the average price, you will receive
Aquaria and
Crayon Physics Deluxe.