Kill 3000 enemies
Upgrade any resource building
Upgrade any attacking tower 5 times
Kill 2000 enemies
Upgrade max mana limit
Upgrade any attacking tower 3 times
Win on "Ash" map
Reach 10th wave on "Ash" map
Win on "Path" map
Reach 10th wave on "Path" map
Unlock new type of block
Unlock new resource building
Win on "Castle" map
Kill 1000 enemies
Unlock new tower