Its well know for the role players of Nations of Facebook, that the real Earth is not able to sustain the population many nations have reached.

Other persistent problem is when several role players, with their respective territorial claims, have exactly the same territorial claims as other:

One of the proposed solutions is the Extended Earth, wich is the real life earth, resized to be bigger, and with several Fictional Territories added.

It is in such an "Earth" that take place the fictional continents Aels, Iola and Muhr, each inhabited by many fictional nations and each with many different island chains and land masses.