How to join a multiplayer game?

There isn't any separate multiplayer button; a multiplayer game requires one player to act as host. The host decides what the game settings will be (although this usually involves negotiating with the players first).

Once the game settings are decided, each player creates their empire, saves it to a file, and sends it to the host. When the host has all the players' empires, he creates the game and sends the first turn to the players. You load the turn like any other saved game, and give your orders normally. When you end your turn, your orders are saved to a file that you send back to the host. When the host has all the players' orders, he runs the turn and sends the results back to the players, and so on.

The Play-By-Web site can be used to automate collecting and distributing the turns.

capnq
PBW admin

"Good morning, Pooh Bear," said Eeyore gloomily. "If it /is/ a good morning," he said. "Which I doubt," said he.

Forgot to include a link for PBW:

http://seiv.pbw.cc/

"Good morning, Pooh Bear," said Eeyore gloomily. "If it /is/ a good morning," he said. "Which I doubt," said he.