Freeciv-Web Game Formats

Games have several levels of rules. First, there are the rules of the game server, similar to laws of physics that can never be broken. Next are the rules imposed by settings, which are optional variations on these rules. Finally, there are the rules defined by the ruleset.
Besides the above rules, Longturn games may also have "format rules" which set its theme, balance, fairness, or challenges:
* Expert Plus One Format (EXP+1)
* No Expert Co-Victory (NO-XCV)