(This snippet was taken from Gordon's bio. He told me there will be other things that will be added to this later.)
Titan was a game world invented for the specific purpose of game play. I know that sounds self-evident, or obvious, so I'll try to explain a little better. The kingdom in which the characters started maintained a set of boardwalks and shelters, so that low-level characters had a place to rest without being killed in their sleep on their first adventure. The society was loosely based on Bronze Age Greek raiders and Native American coup-counting, specifically so that one could play Thieves to the hilt without having to be villainous. Treasure was there for the taking, with ceremonies held that returned any irreplaceable heirlooms to their owners in exchange for official recognition of the Thief's prowess in stealing it. The politics were lifted from Greyhawk, giving us a chance to start interacting with Iuz's empire, and deal with a war that wasn't there to be won, but to be survived. We were also watching a lot of Babylon 5 at this point, and into the whole political thing.