What are the costs of the initiate a Fort Battle?

Depending on the size of the fort, the basic cost of declaring a battle is as follows:

• Small fort challenge: $1,500
• Medium fort challenge: $5,000
• Big fort challenge: $10,000

The funds will be taken from the treasury of the attacking city.

To prevent fake fort battles - where one alliance or player triggers multiple battles simultaneously to confuse the opponent - each subsequent attack triggered within 3 hours doubles the cost (this applies to all towns on the server). Outside the 3-hour interval, basic prices remain the same.

For example:

• The second battle within 3 hours will cost twice as much. When attacking a large fort, it will be $20,000 ($10,000 * 2). The next battle will cost 4 times more ($40,000).
• The eighth battle within 3 hours will cost 256 times more. When attacking a small fort, it will be $384,000 ($1,500 * 256).

The formula for the increased price is:

price * 2n

where n is the number of battles scheduled within the previous 3 hours before the one you want to trigger.

Related articles

• What sizes of forts can I find in the game?
• What are the requirements to build a fort?
• What can I find in the headquarters and which materials are necessary to expand it?
• What can I find in the fort's barracks and what are the raw materials necessary to expand it?
• What are the rules that define the possibility of engaging in too many battles in a short period of time?