Defeat 1000 enemies.
Build 500 towers in total.
Defeat 2000 enemies in total.
Defeat 3000 enemies in total.
Defeat 5000 enemies in total.
Defeat 7500 enemies in total.
Defeat 10000 enemies in total.
Defeat 15000 enemies in total.
Defeat 20000 enemies in total.
Defeat 25000 enemies in total.
Defeat 30000 enemies in total.
Survive 50 waves in total.
Survive 100 waves in total.
Survive 200 waves in total.
Survive 300 waves in total.
Survive 500 waves in total.
Survive 750 waves in total.
Survive 1000 waves in total.
Survive 1500 waves in total.
Survive 2000 waves in total.
Complete 10 levels.
Complete 20 level runs in total.
Complete 25 level runs in total.
Complete 30 level runs in total.
Complete 40 level runs in total.
Complete 50 level runs in total.
Complete 75 level runs in total.
Complete 100 level runs in total.
Complete 150 level runs in total.
Complete 200 level runs in total.
Complete 250 level runs in total.
Complete 300 level runs in total.
Complete 400 level runs in total.
Complete 500 level runs in total.
Complete 750 level runs in total.
Complete 1000 level runs in total.
Earn 5000 gold in total.
Earn 10000 gold in total.
Earn 20000 gold in total.
Earn 25000 gold in total.
Earn 50000 gold in total.
Earn 100000 gold in total.
Earn 150000 gold in total.
Earn 200000 gold in total.
Earn 250000 gold in total.
Earn 300000 gold in total.
Build 50 towers.
Build 100 towers in total.
Build 200 towers in total.
Build 300 towers in total.
Build 750 towers in total.
Build 1000 towers in total.
Build 1500 towers in total.
Build 2000 towers in total.
Complete 5 flawless level runs.
Complete 10 flawless level runs.
Complete 20 flawless level runs.
Complete 25 flawless level runs.
Complete 50 flawless level runs.
Complete 75 flawless level runs.
Complete 100 flawless level runs.
Survive 20 waves in the Maelstrom.
Survive 30 waves in the Maelstrom.
Survive 40 waves in the Maelstrom.
Survive 50 waves in the Maelstrom.
Hear 5 fireside tales.
Hear 10 fireside tales.
Hear all 20 fireside tales.