Nordhold achievements

Win the game with only 1 life point left.

Achieve 300% or more spell damage.

Complete a run without arrow towers.

Level a tower to level 10.

Hire 12 workers in one run.

Complete all 30 waves with just one tower type.

Finish wave 30 with no more than 5 workers.

Reach the "Valhalla" rank in normal mode.