Siege Towers are the Tier 3 siege units. They are weak against all troop types and for this reason should not be used to attack armies on resource tiles.
Like all siege units Siege Towers are strong against city defences i.e. wall traps. You should therefore always include siege units when attacking a player city with lots of traps. The downside is they are the most expensive Tier 3 troop to build.
Siege Towers are the strongest siege unit you can train in Game of War without spending real money to unlock Tier 4 troops. So for the casual player this will form a large part of your offensive army when attacking player cities.
Siege Towers require roughly 50% more resources and take twice as long as to train than Ballista.
|1||800,000||1,280,000||800,000||600,000||800,000||24d||Academy 15, Guardians||Unlocks Siege Towers|