Kill your first zombie

Kill 100 zombies

Kill 1,000 zombies

Kill 10,000 zombies

Clear wave 5

Clear wave 10

Clear wave 20

Complete the campaign

Defeat your first boss

Defeat five bosses in one run

Defeat all five campaign bosses

Clear a wave without taking damage

Enter Endless Mode

Reach Endless wave 25

Reach Endless wave 50

Reach player level 10

Reach player level 20

Open your first chest

Open 10 chests

Use your first power-up

Use every power-up type

Use the Nuke power-up

Start a run as Firebrand

Start a run as Electrician

Start a run as Butcher

Start a run as Medic

Start a run as Sniper

Start a run as Security