The Campaign Builder's Guild

Celestia is pretty FREAKIN' AWESOME as far as planetarium software goes. It lets you fly out through space and it's largely open source so you can mod the game and the engine (to a degree) to change various aspects. I heard about one guy modding it to switch the milky way out with the star wars galaxy.

Quote from: NomadicCelestia is pretty FREAKIN' AWESOME as far as planetarium software goes. It lets you fly out through space and it's largely open source so you can mod the game and the engine (to a degree) to change various aspects. I heard about one guy modding it to switch the milky way out with the star wars galaxy.

On a more basic scale, I've seen people create and render entire solar systems for their campaign settings.