Permanent upgrades

How progression works

Ranks cost one, two and three stars respectively. Bonuses shown at each rank are total bonuses, not cumulative percentages added on top of earlier ranks. These upgrades are separate from the towers you purchase with gold during battle.

Archer upgrades

• Sharpened Arrows — +5 / 10 / 15% physical damage
• Eagle Eye — +5 / 10 / 15% attack range
• Swift Hands — +5 / 10 / 15% fire rate
• Double Shot — 5 / 10 / 15% chance of an extra arrow

Barracks upgrades

• Battle Training — +5 / 10 / 15% melee damage
• Reinforced Armor — +3 / 6 / 9 points physical protection
• Toughened Soldiers — +5 / 10 / 15% soldier health
• Rapid Reinforcements — 5 / 10 / 15% shorter respawn time

Mage upgrades

• Arcane Power — +5 / 10 / 15% magic damage
• Arcane Reach — +5 / 10 / 15% attack range
• Quick Casting — +5 / 10 / 15% casting rate
• Arcane Surge — 5 / 10 / 15% chance of +50% hit damage

Cannon upgrades

• Heavy Cannonballs — +5 / 10 / 15% cannon damage
• Larger Explosions — +5 / 10 / 15% blast radius
• Improved Loading — +5 / 10 / 15% fire rate
• Precision Engineering — +5 / 10 / 15% attack range