Okay, so I was perusing the cornucopia of gaming goodness which is DriveThruRPG, drawn there by their "Christmas in July" sale, and purchased several reasonable priced items. One item I obtained, particularly reasonably priced in that it's free, was The Petal Hack. The Petal Hack authored by Brett Slocum is a hack of the old Empire of the Petal Throne (EPT) game using The Black Hack rules. The pdf is just 64 pages and yet it provides just about everything to play. The only thing lacking is in-depth information about this unique campaign world but the introduction has links to several excellent sites which provide plenty of resources. The Petal Hack takes all the cool elements from EPT and mates them up nicely with the simple mechanics from The Black Hack.
I bought the original EPT back in the late '70s. I still have my boxed set with the extra full-color maps printed on thick plastic like shower curtains. Alas, back then I was only able to talk my players into playing it once. This version of the game is simple enough to jump into that I could probably get my current group to try it as an off-night game. Brett did an amazing job in not only converting EPT to TBH, but also in fitting everything into a mere 64 pages, including cover, legal, etc.
I definitely recommend checking out The Petal Hack.