Observer (PC)

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Easy "The Root of All Evil" Achievement

#1. On the top floor of the apartment building.
#2. In the toilets in the first floor (the one where you get stuck and Rudy gets you out). In a toilet you need to flush.
#3. When in the underground maze in the... interesting studio/office (Janus *cough*)
#4. Towards the end of the game in Chiron building on a table.

Easy "Voxel runner" Achievement

First you will need to connect to Adam's head. Use combination "Shift+W+A" or "Shift+W+D" for strafe moving on falling blocks of tetris.

Room Codes

Apartment of Adam Lazarski: The code to access Adam's apartment is 1984, when you try to hack you will only get the last digit, for the full code you have to find a novel which is in the back side of closet, look for Novel 1984.

Locked door in ground floor of Adam's Apartment: There is a locked door in the ground floor, you can find this between the wall of room no.11 and room no.12, you can open the door by typing 0446.

Apartment 114: Just below apartment 113 where you will talk to a strange girl, head to Apartment 114 down the hall, you have to look for an ad there, and the guy with multiple arms, the pass code to access that room is1074.

Parlor Chair: Behind a parlor or tattoo chair, you will find the pass code machine. To get the pass code you have to hack into Helena Novak's mind, and you will get code 3615.

Apartment 28: After unlocking the secret room in a tattoo parlor, the above part you have to go the basement. On your right, you will see a room with spray painting "Chrion Eats My Dreams", on the wall just next to the door. Use code 7441 to unlock it.

Exit Door: You can find this door in the basement with the Exit sign above it. When you hack the keypad you will get the first three letters of the pass code, you can try 4004.

Apartment 202: When you hack the keypad you will get two numbers 3 & 6, you can try pass code 3690, to unlock this room.

Room In Side Ally across Tattoo Shop: Across the tattoo shop, you will reach a side ally where you will find a room, there is also a picture on the left side on the wall. If you hack the keypad you will get only two numbers 2 and 0. You have to find a Night club in the area, you will see two signs 6 & 9, hanging, so the full code is 2069.

Various Steam Achievements

Complete the indicated task to unlock the achievement.

AchievementHow to unlock
A death in the familyReject Adam.
A work in progressFind all RC cars and recall a memory of Adam.
Altered statesOverdose on synchronization pills.
Body snatcherDecide the fate of the merging minds.
By any other nameFind all roses and discover the final resting place.
C0D38R3AK3RDecrypt Adam’s figurine.
Drug trailInterrogate Amir’s clients.
I am an ObserverComplete your first Dream Eater sequence.
It’s a trap!Survive Adam’s trapware.
KPD! Open up!Interrogate 20 tenants.
Lord of the harvestDecide the fate of the organ farm.
Noble SwordComplete all With Fire and Sword: Spiders arcade games
OutbreakFind 10 nanophage patient cards.
PandemicFind all nanophage patient cards in a single playthrough.
Pearls before swineDecide the fate of the organ farm.
The prodigal sonEmbrace Adam.
The root of all evilFind and listen to all patient interview recordings.
UnbreakableFinish the game without dying.
Voxel runnerEarn 3000 points during a single trapware run