Undead Citadel

Achieve all the achievements

Kill 1000 undead enemies

Survive for more than 30 waves in the Horde mode

Take an arrow fired by the enemy in mid-air

Kill 3 enemies with a single explosive

Kill an enemy at 30m

Get an archer to kill another enemy

Finish level "Catacombs"

Finish level "The Maze"

Finish level "Inner walls"

Finish level "Tower"

Kill 500 undead enemies

Freeze 100 enemies

Survive for more than 20 waves in the Horde mode

Cut off the limbs of an enemy while still alive

Ice explosion

Kill 10 crows

Finish level "Entrance"

Finish level "Gates"

Finish level "Bridge"

Finish level "The wall"

Finish level "Runway"

Finish level "Graveyard"

Kill 100 undead enemies

Survive for more than 10 waves in the Horde mode