Archer Tower (3 levels of upgrade)
- Tower enlisting archers that attacks with a lot of range and great rate of fire.
- Effective against air and ground enemy units.
Available (within mission) Enhancements:
Multishot – periodically rains arrows down (special attack with greater damage) on targets.
Scout – Increases the range of the tower and all nearby towers.
Passive Enhancements (using earned stars):
Double Archers - Two heads are better than one (cost: 4 stars)
Increased Range - Fly, arrow, fly! (cost: 5 stars)
Chance of Slowing - Don't ask why those are so sticky (cost: 6 stars)
Barracks (3 levels of upgrade)
- A small fort that releases troops to engage enemy units
- Effective at stopping ground units
Available (within mission) Enhancements:
Sword Spin – troops perform a spinning attack damaging multiple enemies at a time.
Royal Shield – boosts the health of its (spawned) troops.
Passive Enhancements (using earned stars):
Three Troops - Three is definitely a crowd. (cost: 4 stars)
Increased Health - It must be all that exercise! (cost: 5 stars)
Increased Damage - Watch out! Those swords are sharp! (cost: 6 stars)
Cannon (3 levels of upgrade)
- A roaring cannon that lobs explosive shells at groups of enemies
- Effective against a mob of ground enemy units. Works well when your ground forces tank and stop enemy units in clusters.
Available (within mission) Enhancements:
Barrage - periodically erupts with massive boulders damaging all enemies in range.
Rockets Away – launches a rocket that targets the farthest enemy on the map.
Passive Enhancements (using earned stars):
Burn Damage - Smells like... Victory! (cost: 4 stars)
Increased Damage - Boom, baby! (cost: 5 stars)
Chance of Stun - They'll be seeing stars! (cost: 6 stars)
Wizard Tower (3 levels of upgrade)
- A wizard that fires powerful beams of magic that rip through enemies in a line
- Effective against lines of ground units
Available (within mission) Enhancements:
Magic Aura – Casts a magic spell providing increased movement and attack speed for allies resting on its proximity.
Teleport – periodically teleports enemies back from their starting points.
Passive Enhancements (using earned stars):
Wider Beams - Don't call them fat, they're sensitive. (cost: 4 stars)
Increased Fire Rate - Wizards are so impatient! (cost: 5 stars)
Cheaper Construction - But the same great quality! (cost: 6 stars)