Rules:

You are not allowed to quit unless you loose your capital, or the majority of the players agree to let you leave.

Games will be played on Pangea for balance reasons.

Everyone get's a random civ, if you roll Venice you are allowed to demand a remake.

Games will be played with strategic resources.

If you know, that you most likely won't be able to play an entire game, in order to play, the majority of the players have to be fine with you potentially quitting mid game.

One is not allowed to vote for any other player than yourself for world leader.

In a FFA players should vote on;

Ban nukes, and/or atombombs
Ban Xcom units
Ban research agreements

FFA draft page link - http://georgeskleres.com/civ5/
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If you break the rules, there will be a penalty next game in form of a harder difficulty or something of the likes.
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All players should be respectful and display good sportsmanship.

Waiting out the turn timer to attack or other reason is considered poor sportsmanship
Suicide on purpose or staying in game without actually playing is considered worse than quitting.

Collusion or predetermined team play is not allowed. Playing not to win and or help another player win is poor sportmanship.