Zarthoon

In moments stolen from other projects (or day jobs), Jason Sholtis and I have been bandying about ideas for a Sword & Planet setting for some future publication. It's still taking form, but here are some facts about Zarthoon as we currently know them:

• It is a planet orbiting a G-type star, 66 G. Centauri, some 30 light-years from Earth. It is about one and a half times larger than Earth, but is less dense, so it has a similar gravity. It has one moon, but also a glittering band of dust, where perhaps another moon once orbited.
• Some people of Earth have come to Zarthoon in the past, by mysterious means. Indeed, the primary intelligent species seems to identical to Terran humanity in all respects.
• There was a nuclear war centuries ago. Zarthoon's advanced civilization was mostly destroyed, only ruins remain of once advanced cities on most continents, though there are a few cities, including the domed city of Azmaron, which hold on to a bit of their former glory. In most places it is a "points of light" setting where city-states are isolated and surrounded by monster and mutant-infested wilderness.
• Much of Zarthoonian technology is based around the radioactive mineral called zuranite. Its radiation is focused to provide beam weapons of deadly force, used to power the buckler-like hand-shields that are the only protection against those beams, and to power the anti-gravity engines of fliers.
• Most disputes aren't settled with zuranite ray guns, but instead with swords, graceful rapiers edged with crystalline adamant so that no metal armor can resist them.
• Not everyone has access to fliers and so many rely on beasts of burden, including the swift, flightless avian zurch, and the beaked and elephantine vastidars.

Size comparison of a vastidar and a human