Achieved | Achievement | % of players | Unlock date |
|---|---|---|---|
 | My First Time Kill your first cadaver | 100% | |
 | Sherlock Find a secret passage | 85.7% | |
 | Pharmacist Take "heavenly" pills | 79.9% | |
 | Kleptomaniac Open the shelf in the desk | 58.2% | |
 | Centipede Kill the centipede | 55.98% | |
 | Anarchy Smash 15 vending machines | 52.28% | |
 | Choo-Choo Ride the train | 46.36% | |
 | Safe Sex Find a condom | 45.5% | |
 | Dreadnought Kill Dreadnought | 36.13% | |
 | Neat Freak Pick up soap in the shower room | 33.91% | |
 | Safecracker Unlock a combination lock | 22.44% | |
 | Gestalt Beat the game | 21.09% | |
 | Demikhovsky Kill Demikhovsky | 20.84% | |
 | Soccer Player Score a goal with your head | 19.61% | |
 | TV Mania Watch a TV show | 3.82% | |
 | Labyrinth Challenge Complete the Labyrinth Challenge | 3.21% | |
 | New Boss in the Office Dispose of the old boss | 2.84% | |
 | Axe-man Challenge Complete the Axe-man Challenge | 2.71% | |
 | Skirmish Challenge Complete the Skirmish Challenge | 2.22% | |
 | Arena Challenge Complete the Arena Challenge | 2.1% | |
 | Archivist Find all the parts of Demikhovsky's diary | 1.85% |