The #Galactic-Milieu uses #Crossfire-RPG for a 2-D tile-based view into the Milieu, #CoffeeMUD for text-mode, #FreeCiv for 2-D tile-based planetary-scale on the scale of Civilisations, and someday hopefully something along the lines of #OpenSimulator for 3-D full-immersion mode. :)
RE: Enquiring into Real-Estate and Civilisations on the Galactic Diplomacy Planet