MMORPG like RTS -- world splitting

[Indy2222]

The basic idea is to allow "indefinite" game with massive number of players (similar to MMORPGs).

Requirements:

• Massive number of players need to be allowed to play "at once".
• Players are allowed to go away and return to the game (without loosing).

Design:

• If the number of entities in a world raises above a threshold, it is split in two.
• There are gates which need to be traversed (by units) to get from one world to another.
• There is some maximum (units per second) rate for the gates.
• Each player can "play" only inside a single world. They can switch to any other world in which they have units/buildings.
• Each world is simulated by players which are active in the world. Everything is "paused" if everybody leaves it.
• A player can be attacked even when not active. Their units behave according to their AI.
  • The only exception to this is a "home world". User can pick which world is their home world out of worlds in which they have some special "expensive building" (base?).
• There is some minimum activity in each world for each player. If it is not met, all his buildings/units disappear.
• Each world is handled by an independent sever. The servers communicate with each other via some low overhead API.