| Achievement | How to unlock
|
|---|
| Anarchy | Smash 15 vending machines.
|
| Archivist | Find all the parts of Demikhovsky's diary.
|
| Arena Challenge | Complete the Arena Challenge.
|
| Axe-man Challenge | Complete the Axe-man Challenge.
|
| Centipede | Kill the centipede.
|
| Choo-Choo | Ride the train.
|
| Demikhovsky | Kill Demikhovsky.
|
| Dreadnought | Kill Dreadnought.
|
| Gestalt | Beat the game.
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| Kleptomaniac | Open the shelf in the desk.
|
| Labyrinth Challenge | Complete the Labyrinth Challenge.
|
| My First Time | Kill your first cadaver.
|
| Neat Freak | Pick up soap in the shower room.
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| New Boss in the Office | Dispose of the old boss.
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| Pharmacist | Take "heavenly" pills.
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| Safe Sex | Find a condom.
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| Safecracker | Unlock a combination lock.
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| Sherlock | Find a secret passage.
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| Skirmish Challenge | Complete the Skirmish Challenge.
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| Soccer Player | Score a goal with your head.
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| TV Mania | Watch a TV show.
|