From Guild Wars Wiki
Siege machines are stationary weapons designed to bypass terrain restrictions while dealing a great amount of AoE damage to structures or creatures at a fixed range. Siege machines of different kinds can be found in several places of
Tyria, often being used as a way to penetrate a fortress or stopping the movement of troops. Players should be cautious when using siege machines, as some of them can deal
friendly fire.
[edit] Types of Siege Machines
