Defiance: The Essential Guide by is today’s Free eBook of the Day.

The guide by Syfy and Trion Worlds is an interactive companion to the TV series. The eBook features 3D animations, an alien language translator, digital postcards, and game codes. Check it out: “Set in the near future, Defiance introduces an exotically transformed planet Earth, its landscapes permanently altered following the sudden – and tumultuous – arrival of seven unique alien races.”

NBC Publishing has the free download. They are currently offering the iBooks edition. Kindle, Nook, and Kobo editions are coming soon.

For more free eBooks, check out our Free eBook of the Day archive.