For some time Maff and I have been looking for a suitable background to anchor our Sci Fi gaming. Both fans of Marc Miller's original Traveller and later the Firefly 'Verse, we've found it difficult to pin ourselves to one or the other. We've even tried incorporating the 'Verse into the Imperium as a confederation of worlds similar to The Sword Worlds.
However, it was only once Maff and I both bought a copy of Future War Commander that the light bulb moment actually came. You see we are also long-term fans of Robert E Howards CONAN, and more specifically Howards' world of the Hyborean Age. There we had it, a world we were already familiar with, screeds of maps on the 'net, untainted by other Sci Fi canons, and flexible enough for us to drop in and drop out as we pleased.
We could even use Hyboria as a 'vanilla' setting for Ambush Alley, where the Aquilonian Rifle Brigade or Cimmerian Fusiliers are undertaking 'police actions' in Iranistan, Drujistan or Shem.
And of course, there are moons and asteroids to be claimed, contested and conquered.