Produce cannon balls out of 2 unprocessed iron.

Tips

  • These can be 1-2 levels below your cannons.
  • You don't need these as leveled as Arrow Factorys.
  • As cannons aren't as important in the midgame, you don't need to focus on them as much as the other defenses ammo sources.
  • Make sure to check your production with the z button. If red increase iron production.
  • Be careful upgrading these, as it's iron use can stifle arrow production.
  • before placing/upgrading these, make sure your defense towers are upgraded/placed.

Characteristics at different levels

Level 1 2 3 4 5 6 7
Health 500 1000 2000 2000 2000 2000 2000
Produce/s 1 2 3 4 6 8 10
Upgrade 250 750 2000 5000 10000 15000 -
Cost 120 370 1120 3120 8120 18120 33120
Sell for 70 220 670 1870 4870 10870 19870

[1] original reference

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