Chronicles of Gor Indiegogo campaign is only about $800 short of its goal, and ends today. I'd urge everyone who is interested in swords-and-planet type settings to give it a look-see.
Yes, the Gor novels have a reputation for an ever-increasing focus on the slave and sex angle. But the earlier books are wonderful combinations of primitive cultures, advanced alien races and technologies, very intricate political maneuvering, and wonderfully detailed cultural descriptions.
I've been reading the books since high school and even I tend to skip over the "she knew herself to be a slave" bits. There's still a ton of great adventure story in there. And, of course, as an RPG, you can tone down the slavery angle as much as you want.
The campaign is offering two books; a rulebook and a world book. So fans of RPGs will want both, and fans of the Gor books themselves might be content with the worldbook, which will function as a sort of Gorean encyclopedia. The art work looks decent, and the author has a track record, having won an Origins Award for the Munchkin's Guide to Power Gaming. Worth checking out.