| Achievement | How to unlock
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| 911 (200 points) | Use a first-aid kit 100 times in Challenge mode.
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| All present (200 points) | Unlock every character.
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| Almost there (200 points) | Exit the fourth zone in Challenge mode.
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| Anomaly hunter (200 points) | Use the trap to destroy the electrical anomaly in Challenge mode.
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| Attacks of aggression (200 points) | Acquire "Attacks of aggression" madness for the first time in Challenge mode.
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| Backhanded (0 points) | Break any tool.
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| Belissimo! (0 points) | Cook food in the oven in Challenge mode 20 times.
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| Bouncer (0 points) | Break 50 doors in Challenge mode.
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| Burst of anger (0 points) | Acquire "Burst of anger" madness for the first time in Challenge mode.
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| Clever hands (0 points) | Complete any 25 repairs in Challenge mode.
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| Coffeeman (0 points) | Eat 50 coffee beans in Challenge mode.
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| Collector (0 points) | Find every tool in the game.
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| Color blindness (0 points) | Acquire "Color blindness" madness for the first time in Challenge mode.
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| Crazy laughter (0 points) | Acquire "Crazy laughter" madness for the first time in Challenge mode.
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| Doubtful utility (0 points) | Acquire "Doubtful utility" madness for the first time in Challenge mode.
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| Fatal shot (0 points) | Earn the second bad ending in Challenge mode.
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| Fireman (0 points) | Add fuel to furnaces 50 times in Challenge mode.
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| First drag (0 points) | Smoke a cigarette.
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| First madness (0 points) | Turn mad for the first time in Challenge mode.
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| First step (0 points) | Exit the first zone in Challenge mode.
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| Gangster (0 points) | Fire a gun 20 times in Challenge mode.
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| Gluttony (0 points) | Acquire "Gluttony" madness for the first time in Challenge mode.
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| Hallucinations (0 points) | Acquire "Hallucinations" madness for the first time in Challenge mode.
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| Handle with care (0 points) | Finish four zones in a row without breaking a single door in Challenge mode.
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| Heartless behavior (0 points) | Leave a living character behind when proceeding to the next zone in Challenge mode.
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| Hesitation (0 points) | Earn the first bad ending in Challenge mode.
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| Homesick (0 points) | Acquire "Homesick" madness for the first time in Challenge mode.
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| Hyperopia (0 points) | Acquire "Hyperopia" madness for the first time in Challenge mode.
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| Ideal manager (0 points) | Complete the game with three characters in Challenge mode.
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| Insomnia (0 points) | Don't sleep in the first zone in Challenge mode.
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| Intolerable hunger (0 points) | Acquire "Intolerable hunger" madness for the first time in Challenge mode.
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| Last door (0 points) | Exit the fifth zone in Challenge mode.
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| Last man standing (0 points) | End the game in Challenge mode with one survivor.
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| Midway (0 points) | Exit the third zone in Challenge mode.
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| More wood! (0 points) | Saw up nine crates during a single game in Challenge mode.
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| My poor lungs! (0 points) | Smoke 10 cigarettes during a single game in Challenge mode.
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| Myopia (0 points) | Acquire "Myopia" madness for the first time in Challenge mode.
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| Night vision (0 points) | Acquire "Night vision" madness for the first time in Challenge mode.
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| Obsessive singing (0 points) | Acquire "Obsessive singing" madness for the first time in Challenge mode.
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| Occult enlightenment (0 points) | Acquire "Occult enlightenment" madness for the first time in Challenge mode.
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| Overloaded reflector (0 points) | Earn the secret ending available in Challenge mode.
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| Paramedic (0 points) | Resuscitate a character 30 times in Challenge mode.
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| Repairs needed! (0 points) | Break six objects while under the influence of the "Burst of anger" madness.
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| Rich ration (0 points) | Cook every kind of food in the oven during a single game.
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| Selfish act (0 points) | Earn the good ending in Challenge mode.
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| Shakespearean expert (0 points) | Acquire "Shakespearean expert" madness for the first time in Challenge mode.
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| Space distortion (0 points) | Acquire "Space distortion" madness for the first time in Challenge mode.
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| Strange whisper (0 points) | Acquire "Strange whisper" madness for the first time in Challenge mode.
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| Survivor (0 points) | Find and save the third character on the base in Challenge mode.
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| Tesla (0 points) | Turn on generators 100 times in Challenge mode.
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| This is the end! (0 points) | Complete the game with any ending.
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| Too much (0 points) | Acquire "Too much" madness for the first time in Challenge mode.
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| Two doors behind (0 points) | Exit the second zone in Challenge mode.
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| Warpath (0 points) | Charge the reflector once in Challenge mode.
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| White noise (0 points) | Acquire "White noise" madness for the first time in Challenge mode.
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