Achieved | Achievement | % of players | Unlock date |
|---|---|---|---|
 | Housekeeping Find the Key to the Attic | 99.68% | |
 | Where it all begins Complete Chapter 1 | 95.98% | |
 | Long Arm of Justice Defeat John Norton | 64.25% | |
 | Eagle Eye Find 10 hidden messages | 59.88% | |
 | Avid reader Collect 10 notes as Nicolas | 53.93% | |
 | Librarian Collect 10 notes as Adam | 48.1% | |
 | No noise Shoot down all anomalies | 45.86% | |
 | Moth Light 30 candles | 44.96% | |
 | Full tank Collect 50 bottles of kerosene | 44.63% | |
 | Codebreaker Solve the Enigma | 41.04% | |
 | Cold Bastard Defeat Walter Gilman | 39.8% | |
 | The True Beast Finish the game | 35.88% | |
 | Boy with the matches Collect 50 boxes of matches | 29.71% | |
 | Ghostbuster Chase away Norton's Ghost 10 times in the woods | 22.65% | |
 | Gonzo journalist Collect all newspaper clippings | 21.86% | |
 | Awakening the Beast Choice No. 2 (Evil Nicolas) | 20.74% | |
 | Breaking with the past Choice No. 1 (Good Nicolas) | 19.06% | |
 | Closed ward Ending No. 1 (Adam is sick) | 14.35% | |
 | Sparrow Ending No. 3 (Adam kills Emma) | 12.33% | |
 | The End of Madness Ending No. 4 (Adam kills himself) | 10.09% | |
 | Bookworm Collect all notes as Adam | 7.62% | |
 | Spycraft Ending No. 2 (Adam kills the doctor) | 6.28% | |
 | Erudite Collect all notes as Nicolas | 4.6% | |
 | Agent H. Find all Harold's notes | 3.81% | |
 | Newsflash Hear every news message on the radio | 2.02% | |
 | No secrets Find all hidden messages | 1.46% | |
 | Citizen of Blackstone Unlock all achievements | 0.9% |