Siege unit that is used to destroy defencive structures, has 2% chance to make hole in the wall. If failed there is 1% chance to damage wall by one level. If there is no wall, castle is targeted. If that does not exist either, random building is targeted. Missed shots have 1% chance of damaging some other building.

Needed to train
Iron 40
Wood 100
Stone 100
Gold 2750
Duration 3.3 h
The unit's info Level 1 Level 5
Attack 1 5
Defense 0 0
Movement 2 2
Max level 5 5
Residents 5 5
Gold -24 /h -24 /h

Note: do not use catapults if you want to conquer the city you are attacking, they can deal huge damage to all the buildings