Kill a horde of trogs

Collect 3000 gold from a single level

Destroy green towers

Destroy a skull tower

Destroy any towers

Collect arrows from the dead archers' bodies

Kill units with magic

Kill Explosive Jellies

Kill Mosquitoes

Take a secret elixir from shamans

Kill armoured units

Help peasants to deal with wolves. Take the good sword as reward

Kill units with shaman magic

Kill enemies with sword

Kill enemies with a wand equipped

Complete a level with a crossbow

Destroy water towers

Destroy laser towers

Destroy cave towers

Equip weapons from the runes combinations

Defeat cave archers

Defeat cave bats

Kill enemies with fire

Defeat cave medusas

Defeat cave trogs

Defeat cave warriors

Defeat cave wolves

Collect flying hearts

Destroy ice towers

Kill ice archers with projectiles

Kill furry bats with familiar

Kill snowball jaws

Kill frozen mosquitoes with a shield equipped

Defeat snow shamans with a two-handed weapon

Shout at snow giants and kill them

Kill snow trogs by the Axe

Fight snow warriors with a sword

Kill bone units by Barbarian with Ice damage

Kill bone units by Mage with Lightning damage

Complete hard difficulty challenges on 3 stars on Bone World

Complete Raid Lvl 3000

Kill enemies affected by death rune

Kill enemies with poison jelly explosion

Kill enemies affected by stolen soul

Destroy glass towers with a hammer

Kill mosquitoes with range weapons when blinded

Kill white shamans by poison

Catch the ghosts

Kill enemies under the tower's sight

Kill enemies affected by the War Cry

Use Totems

Find the sorceress

Find a trinket

Complete level 20

Complete level 40

Complete level 60

Complete level 80

Complete all forest levels on hard difficulty

Complete all cave levels on hard difficulty

Complete all snow levels on hard difficulty

Complete all bone levels on hard difficulty