Less than a month after the release of the first Free Bundle, there is already another one out. Totally free. They won't let you give them money even if you wanted to. Just go to the Free Bundle #2 page to download these sweet indies.
This bundle includes Under the Garden, Zineth, Blitz Meet, A Nation of the Wind, and Mod Father. These games will all work on Windows, but Zineth will also work on a Mac. If you somehow missed the last Free Bundle, you can still get it. There will be another Free Bundle will be out in ten days, so keep an eye out for that.