EDITED: the original method of this game has been fixed in the latest patches and at this time is no longer possible. Sorry.
If anyone is interested in seeing some of the stuff from a big game, check out
http://www.dom3minions.com/games/PvK-e-Oceania/
It started as a 79 player game (with one human player) on a 1100 province map. It is now in turn 70. It was a test game but PvK is having fun with it so its still running.
I am planning to create another 79 player game but this time it will have at least one era opened up to players (probably all of era 1) with all of the other nations set at extreme AI levels.
P.S. check out the army sizes on the scores.html and the last entries on the system load file. Kudos to Johan! The game stays below a load of 1.00 and takes 19 minutes to host. Thats good news for people wanting to host games without wanting to totally dedicate their server to doing that and nothing else.
Gandalf Parker