Cannon

Cannons are the first defensive structure that a player builds at the start of their Clash of Clans adventure. Cannons can shoot any ground units, like Barbarians, but not any any air units, such as Dragons. The Cannon is capable to rotate in a full 360 degrees. The Cannon and Archer Tower have 13 upgrade levels, the highest of any building in the game.

Deffensive Strategy

• Cannons are very useful for keeping Giants from attacking other defenses.
• You can defed Mortars and Wizard Towers by placing them within range of Cannons.
• Make sure Cannons are placed within range of Air Defense, because Cannons are unable to target air units (or at least in range of an Archer Tower or Wizard Tower).

Offensive Strategy

•  Cannons are one of the few defensive units that cannot attack air units. This tends to make them easy pickings for Balloons, Dragons or Minions if they are not within range of Air Defenses, Archer Towers or Wizard Towers.
• Cannons are only able to damage one unit at a time. This makes it very easy to overwhelm them with large groups of Archers or Barbarians.

Level	Damage per Second	Damage per Shot	Hitpoints	Cost	Build Time	Experience Gained	Town Hall Level Required
Level 1	9	7	400	250	1 minute	7	1
Level 2	11	9	450	1,000	15 minutes	17	1
Level 3	15	12	500	4,000	45 minutes	51	2
Level 4	19	15	550	16,000	2 hours	84	3
Level 5	25	20	590	50,000	6 hours	146	4
Level 6	31	25	610	100,000	12 hours	207	5
Level 7	40	32	630	200,000	1 day	293	6
Level 8	48	38	660	400,000	2 days	415	7
Level 9	56	45	690	800,000	3 days	509	8
Level 10	65	52	750	1,600,000	4 days	587	8
Level 11	75	60	900	3,200,000	4 days	657	9
Level 12	86	69	1,080	6,400,000	6 days	720	10