Yes, that is the downside... because there are so many players and players from different countries, we can probably only do 1 turn per day. If we are very lucky perhaps 2 turns. I proposed that we play in weekends, too, and have the AI to take over for those players that can't play in weekends, but we will play Mon-Fri only, at least for now.
Every player will do the turn when he has time... of course this is also the upside of PBEM, because players are not tied to their computers for a long time. Using the PBEM helper to receive the turn, making moves, and using PBEM helper to send the turn, it all will probably take only a couple of minutes. Of course one player could take part in several PBEM games...
I have received about 6 empires so far, keep them coming... the game will not start earlier than Monday-Tuesday.
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PBEM