I guess in order to get people to try out their free Humble Trove (the DRM-free games that come along with the Humble Monthly subscription) they are giving out 6 of them for free for the next couple weeks:
- Hitch Hiker
- 2000:1 A Space Felony
- Cat Girl Without Salad
- Crescent Bay
Go and download them before February 2nd if you want I guess.