In free for all mode, you have one city and one city only. The goal is to get the most cities destroyed. You destroy cities by reducing their loyalty to 0. The city then goes off the map, but a "point" is added to your score.
Your main city can be destroyed. Once that occurs you are "out", but your rank remains if it was very high.
There is no use in attacking an army that's out unless you plan to destroy the city or they are becoming a threat to yours. Prestige, therefore, doesn't count towards ranking. You would rather have a high level wall.
After the said month is over, the top 100 players join onto a server wide free for all if they chose to, where the real prizes exist. They will be simillar to pvp prizes.
The only other way to get "prizes" is by getting top three on your server free for all, where you get 300 coins for first, and 100 coins for second and third.
Source of income for haypi:
Players will only get 300 coins, not enough to warp around for a month. The players will therefore need to buy coins to win.