| Achievement | How to unlock
|
|---|
| Almost Dead | Passed level with minimal health.
|
| Captain | 1000 enemies defeated.
|
| Corporal | 50 enemies defeated.
|
| Corpses Collector | Defeated enemy of every kind.
|
| Experienced Shooter | Level 2 passed.
|
| First Blood | Defeated the first enemy.
|
| Hope of Humanity | Level 3 passed.
|
| Lieutenant | 500 enemies defeated.
|
| Lord of the Bones | Killed 100 times.
|
| Olivia's Favorite | Olivia likes you.
|
| Out on Limb | Killed for the first time.
|
| Promising Soldier | Level 1 passed.
|
| Risen from the Dead | Killed 50 times.
|
| Safe and Sound | Level passed without damage.
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| Savior | Passed all levels.
|
| Sergeant | 100 enemies defeated.
|
| Specialist | 10 enemies defeated.
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| Stealth Master | Passed level without first aid kits and armor.
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| Suicidal Savior | Killed 1000 times.
|
| Turret Summoner | Collected all the turrets at the level.
|
| Unlucky Hero | Killed 10 times.
|
| Walking Dead | Killed 500 times.
|
| Weapon Collector | Collected all weapons.
|