Is it possible to write a script that is persistent? Where the host is not a participant, but just a host that cannot be destroyed, where players come and go but the game stays up indefinitely? If so, could events be reported to a db? How many planets/systems can realistically fit on the largest map? See where I'm going here? With the max of six players (five + host) five hosts reporting to the same db could create a 25 player server with 5 players per venue - perhaps 4 per is better for balance... (20 players total). My interest in this is stirred because I have discovered the command line parameters to host or connect to a multiplayer game.
edit: ah forget it, I forgot that you cant join a game in progress... hmmm, how to automatically cycle the host...