| Achievement | How to unlock | Points
|
|---|
| - Dispose of a zombie-infested sky rat, the hideous Seagull.
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| - Destroy a disgusting, bile-vomiting Spewer.
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| - Reach level ten for the first time.
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| - Squish one of Cicatrix's slithery Symbiotes.
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| - Destroy ten of the infested hosts of Cicatrix's symbiote brood.
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| - Burst a Bloater, Cicatrix's swollen, symbiote-infested behemoths.
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| - Unlock the Agent, the Alien, the Scientist, and the Shaman player characters.
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| - Kill every type of zombie in the game at least once.
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| - Kill ten of the undead minions of the dread Baron Dumorte.
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|
| - Kill one hundred enemies in a single horde mode game.
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| - One thousand confirmed zombie kills in horde mode.
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| - Destroy one hundred zombies in horde mode.
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| - Take out twenty zombies in horde mode.
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| - Five thousand zombie kills in horde mode? Sweet!
| |
| - Reach five hundred zombie kills in horde mode.
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| - Aww, your first zombie kill in horde mode.
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| - Eradicate ten of the twisted products of Dr. Toten's zombie serum.
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| - Are they out there? Prove it with a corpse of a Little Grey Man.
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| - Kill a Spiker. Watch out for the pointy bits.
| |
| - Take out a Witchdoctor, one of Baron Dumorte's evil, zombie-summoning priests.
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| - Wipe out one thousand zombies in story mode.
| |
| - Eradicate one hundred zombies in story mode.
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| - Rid the world of twenty zombies in story mode.
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| - Is it absurd to think you can kill five thousand zombies in story mode? No!
| |
| - Notch five hundred zombie kills in story mode.
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| - Kill your first Zombie in story mode.
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| | |
| - Rid the world of that poster child for PEDs, the serum-swollen Hulker.
| |
| - Turn a zombie Shark into chum.
| |
| - Make hundred shots without missing.
| |
| - Make twenty critical shots in a row.
| |
| - Finish story mode in under one hour, thirty minutes.
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