The Humble Indie Bundle originated earlier this year, and was offered from May 4 through May 11. This pack would later go on to be known as Humble Indie Bundle #1, because pack #2 is available for purchase right now.
Pack #1 consisted of six games–World of Goo, Aquaria, Gish, Lugaru HD, Penumbra Overture, and Samorost 2. The bundle that is currently available for purchase (bundle #2) includes five games–Braid, Cortex Command, Machinarium, Osmos, and Revenge of the Titans. In total, that adds up to 11 games that have been/are available through the offer.
Due to the fact that it’s the holidays, Jeffrey Rosen, the originator of the Humble Indie Bundle, decided to kindly include the first six games to customers who have already purchased bundle #2.
For many people on the internet, this means that they have effectively purchased 11 indie titles for one measly penny. However, if you have not yet purchased the bundle and wish to acquire both packs of games, you will need to pay above the total average, which is currently $7.44.
Not only does the money go to whatever destination you choose (ranging from charity, the original developers of the games, or Humble Bundle itself), the pack has recently introduced Steam support. A code will conveniently be supplied to you upon purchase of the bundle that you can then input on Steam.