Build 50 towers
Kill 1,000 enemies
Manually send 100 waves of enemies
Sell 30 towers
Earn 100,000 coins
Kill 500 enemies with spells
Complete level when your castle has 1 HP
Build 1,000 towers
Kill 50,000 enemies
Fully upgrade 200 towers
Sell 500 towers
Complete all levels with 3 stars
Place all towers available in the episode
Completed a level without improving towers.
Placed all types of towers accessible in the episode on a single tile.
Used all the different types of bonuses on a level.
Sold 10 towers on a single level.
Installed all types of towers accessible on a level.
Unlocked a tile for elixir on any level.
Used bonuses 10 times on a single level.
Completed a level with 10 heart remaining.
Collected 10,000 coins in a single level.
Didn't let a single enemy reach the outpost throughout a level.
Destroyed 20,000 enemies throughout the entire game.
Finish the level with 1 hp