|“||Artillery Batteries use special mortar construction techniques and engineering provided for by this factory||”|
|~ Official BMC description|
The Heavy Artillery Factory is a Special Building that is required for the Artillery Battery upgrade. It costs 16,000, takes 48 hours to build, and gives 700 XP once construction is complete. It consumes 50 and a 1x1 tile space. It requires Level 21 to unlock.