Listening to Steve Miller and reading Carl Sagan has got me wanting to whip up some kind of retro-future RPG. Space Cowboys. Scientists. Strange aliens. World-hopping adventures on the wrong side of the law. Dudes named Maurice.
Now, there are already Stars Without Number, Space Princess, Starships and Spacemen, X-Plorers, and probably a few other sci-fi OSR games out there. So if I do work this up, it may end up as either a retro-clone of Star Frontiers (even though that's
available for free with WotC's blessing), or else a reworking of my
Presidents of the Apocalypse system to a slightly more serious space opera type game.
For now, though, when time permits I'm still plugging away at Chanbara.
Maybe I could do retro-sci-fi with the Flying Swordsmen system, but as I mentioned above, the class&level D&D/d20 field has plenty of games already.