I want to start hosting sessions on Roll20 and I seem to spend an inordinate amount of time developing worlds for rulesets when really I could just create an adventure and jump in and play. The last time I did this I developed a complete world called Mare Nostrum for some online games using the Labyrinth Lords rules.
Mare Nostrum was a bowl-shaped world around an immense sea in the middle. I developed the history, races, backgrounds and created the map (see image). I then wrote 3 adventures for it. Unfortunately it ended after that.
|Mare Nostrum created using Hexographer|