Eleven of the achievements will simply unlock when the player reaches the end of chapters. This is pretty straight-forward and only requires the player to advance the story line.

Chapter 1 forms the intro of the game (the nuclear attack and John's birth) and ends when the game's title appears on the screen. Apart from the player helping the baby to breathe, it all plays out automatically and does not unlock an achievement.

Finish Chapter 2
Unlocks after John's mother dies in her bed as he is reading to her the first time.

Finish Chapter 3
Unlocks after a problem is discovered performing the bunker radiation check when completing the routine list for the third time (day 11,111).

Finish Chapter 4
Unlocks after John uses the key he found in his mom's room on the door leading to the stairwell and goes down to level 2. The chapter ends with him opening the door to level 2.

Finish Chapter 5
Unlocks as soon as John returns to his room on level 1 after replacing the fuse on level 2.

Finish Chapter 6
Unlocks after John's found the NBC suit on level 3 and gone back to the stairwell.

Finish Chapter 7
Unlocks just after John falls from the ladder in the Air Filtration Room trying to re-open the main valve after replacing the damaged air filter.

Finish Chapter 8
Unlocks after John has bandaged his arm and leaves the sick bay through an emergency door when an alarm is sounded.

Finish Chapter 9
Unlocks after John (while he is in the emergency corridor leading down from level 1 to level 3) has a flashback of a man in an NBC suit, holding an axe, chasing his mom and him. The chapter ends as soon as John opens a metal door and then closes it behind him, approaching the War Room from the other side.

Finish Chapter 10
Unlocks just after John opens the wire gate at the bottom of the fire exit ladder that leads down from the War Room to level 5.

Finish Chapter 11
Unlocks right after John manages to open the door of the cold storage room (level 5) using the key pad.

Finish Chapter 12
Unlocks at the end of the game.

Read all books

Number of books involved: 3

Location: Level 1, Room 1 (Mom's room). On the stand next to John's mother's bed.
When: Chapter 2 (first book), Chapter 3 (second and third books).



IMPORTANT:
∙ All three books need to be read in a SINGLE PLAYTHROUGH otherwise the achievement will not unlock.
∙ The ORDER in which the books are chosen is paramount.
∙ Also see the section "Missing Puzzle Piece" before you choose the books.

John will read to his mother three times from the books beside her bed. However, since the third reading will happen automatically and will always be from TREASURE ISLAND, the player will only actually get two chances to choose a book.

Therefore, click them in this order:

1. The Bible
2. Domestic Nuclear Shelters - Technical Guidance
(3. Treasure Island, chosen automatically by the game)



If you pick Treasure Island as your first or second choice, it will still also get read the third time. John has to read from all three these books during the same playthrough in order for the achievement to unlock. So even if you pick the book you missed the first time during your second playthrough but not all three are read from, the achievement will not unlock.

Find all of the toys

Number of toys involved: 9


1.
Location: Level 1, Room 2. John takes it from a trouser pocket.
When: Chapter 4 (Failure)
This achievement unlocks automatically as part of the story line. No action needed from the player.




2.
Location: Level 2, Main Office. In the scene showing the doors of the two offices on the right-hand side, the toy is lying on the floor, bottom right of the screen.
When: Chapter 5 (Fuse)




3.
Location: Level 2, Commissioner's Room (Office 1): on the floor, bottom right on the screen.
When: Chapter 5 (Fuse)




4.
Location: Level 2, Office 2 (the "lecture room" right next to the Commissioner's Room): on the floor under the chairs; middle of the screen, bottom.
When: Chapter 5 (Fuse)




5.
Location: Level 3, War Room: on the floor to the right of the table; bottom right of the screen.
When: Chapter 6 (Alarm)




6.
Location: Level 4, Air Filtration Room: As soon as you enter this room, go to the office on the left of the screen. The toy is in the top drawer of the desk with the PC on it, next to a folder with "Accident Book" written on it.
When: Chapter 7 (Air Filtration)




7.
Location: In the emergency stairwell leading from level 1 to level 3. Right at the start of the chapter, immediately click on the bottom half of the screen to walk down the long hallway to the locked metal doors with levers. At this door, click the icon at the top, right. It is close to John's head.
When: Chapter 9 (Radiation)




8.
Location: Level 3, War Room (second visit). John enters this level coming from the emergency stairs leading from level 1. He enters the War Room from a different direction than before, showing the floor hatch: on the floor, left side of the screen.
When: Chapter 10 (Descent)




9.
Location: Upon reaching level 5 from level 3 (via the floor hatch and fire exit ladder where you saved him from falling to his death). Where John is standing at the bottom of the ladder at a wire gate in the dark red light, the toy is to the left of the gate at the bottom of the screen.
When: Chapter 10 (Descent)
IMPORTANT: Be careful. The icon for the toy and the icon for the gate mechanism are relatively close together. if you click on the gate mechanism first, you will miss the opportunity to pick up the toy and will have to do it in another playthrough!

Read all documents

Number of documents involved: 11

IMPORTANT:
∙ As the condition for the achievement states, you need to read every document - that is, click on 'Read', doing all the pages, clicking on 'Next' when applicable - and not just simply look at them or pick them up.
As such, not all documents in the game are involved in getting this achievement, for example, the Procedural Manual in chapter 4 (Failure), which doesn't require the player to click on 'Read' and forms part of the story line. All of the 11 documents involved here can be missed by the player and aren't required to continue the story.
∙ The "No Page Unturned" achievement for finding and reading all 11 documents will only unlock when the player reaches the last document and have read all documents in the same playthrough. For example, if in your first playthrough you have found all documents except document 4 and you then find the missing document during your second playthrough, the achievement will unlock when you read the last item (document 11) and not when you read document 4.


Document 1
"my diary" (from when John was still a boy).
Location: Level 1, Room 2 (John's room): in the top drawer of the desk on which the PC for bunker radiation checks is located.
When: Chapter 4 (Failure)
Pages: 2. Click on "Read" for both pages.













Document 2
Stock check list, on a clipboard on the left side of the screen.
Location: Level 1, Store Room
When: Chapter 4 (Failure)
Pages: 1. Click on "Read" for this page.












Document 3
"Initial Pain Assessment Tool" - document on the condition of patient Vera Tailor.
Location: Level 1, Sick bay: on a bed to the right of the screen.
When: Chapter 4 (Failure)
Pages: 1. Click on "Read" for this page.




Document 4
Top Secret document.
Location: Level 2, Main Office: left side of the screen.
When: Chapter 5 (Fuse)
Pages: 1. Click on "Read" for this page.












Document 5
Updated Roster.
Location: Level 2, Commissioner's Room: click on the icon to move to the other side of the desk; left of the PC.
When: Chapter 5 (Fuse)
Pages: 1. Click on "Read" for this page.












Document 6
Minutes of a Bunker Committee Additional Meeting.
Location: Level 2, Office 2 (lecture room): to the right of the black board on the table, back wall.
When: Chapter 5 (Fuse)
Pages: 1. Click on "Read" for this page.












Document 7
"NBC Suit Safety Guidelines".
Location: Level 3, Storage Room with NBC suits: in the box on the chair, centre of screen.
When: Chapter 6 (Alarm)
Pages: 1. Click on "Read" for this page.




Document 8
"Air Filtration Unit Check"
Location: Level 4, Air Filtration Room: in the office (left side of the screen) on the desk with the PC and lamp on it.
When: Chapter 7 (Air Filtration)
Pages: 1. Click on "Read" for this page.





















Document 9
"Accident Book" folder, contains "Incident Report".
Location: Level 4, Air Filtration Room: in the top drawer of the desk in the office, next to the Engineer toy.
When: Chapter 7 (Air Filtration)
Pages: 1. Click on "Read" for this page.





















Document 10
Lindane Solution, warning label on the bottle.
Location: Level 1, Sick bay: in medicine cupboard, top shelf.
When: Chapter 8 (Broken) - when John is tending to his broken arm.
WARNING: Easily missed. Click on it as soon as possible, that is, BEFORE he bandages his arm. Order: a) oxygen mask, b) press bone back into place, c) open the cabinet, d) LINDANE SOLUTION, e) Scissors, ruler, bandages. Once John picks up the scissors, ruler and bandages, the player will not be able to access the medicine cabinet again.
Pages: 1. Click on "Read" for this page.




Document 11
Frank's Note to PJ about the oxygen tanks.
Location: The emergency corridor leading from the Sick bay on level 1 to a sealed exit on level 3. Located in the toolbox on the floor at the metal doors, left side of the screen, bottom.
When: Chapter 9 (Radiation).
Pages: 1. Click on "Read" for this page.

Listen to all cassettes

Number of cassettes involved: 3

Cassette Player 1
Location: Level 2, Main Office. It's on a desk on the bottom of the screen, lit up by a small lamp.
When: Chapter 5 (Fuse)



Listen to the cassette and click on the 'Stop' button when you're done.




Cassette Player 2 (actually an old Tape Machine)
Location: Level 2, Office 2 (Lecture room). To the right of the black board on the table against the back wall, right half of the screen.
When: Chapter 5 (Fuse)



Listen to the tape and click on the 'Stop' button when you're done.




Cassette Player 3
Location: After John has gone down the fire escape ladder from the War Room on level 3. John is standing in the red darkness at a wire gate leading to level 5. The cassette player is located on a chair on the right side of the screen, bottom.
When: Chapter 10 (Descent)
IMPORTANT:
Make sure to click on the cassette player before you open the gate, otherwise you will miss it and will have to get it on a next playthrough.



Listen to the cassette and click on the 'Stop' button when you're done.

Find all computers

Number of computers involved: 3

Computer 1
Location: Level 2, Main Office: centre of the screen. Contains reports, logs, etc.
When: Chapter 5 (Fuse)



Click on the various files to read them and log out when you're done.




Computer 2
Location: Level 2, Commissioner's Room. Contains "Safety Observations".
When: Chapter 5 (Fuse)
Click on the icon to walk to the other side of the desk.



Click on the PC monitor to access the PC.



Look at everything on it and log out.




Computer 3
Location: Level 4, Air Filtration Room.
When: Chapter 7 (Air Filtration)
IMPORTANT: This PC has to be used THREE times while you are in this room for the achievement to unlock.

1) Upon entering the Air Filtration Room, immediately go to the PC in the office on the left of the screen.



Click on the monitor to access the contents. It will tell you that there is something wrong with the filter and that it has to be replaced after first closing the main valve. Log out of the PC.











2) After turning off the pressure valve, go back to the PC and log in. It will tell you to change the air filter. Log out.



Find the damaged filter in the cabinet at the back of the room (left side) and take it out. Notice where the new filters are. Discard of the damaged filter using the radioactive waste disposal chute. Pick up a new filter and place it in the empty slot in the filter cabinet.

3) IMPORTANT: This has to happen before John's catastrophic attempt to re-open the valve again. So, immediately after the filter has been changed, go to the PC in the office and access it for the third time. The PC will tell you that the filter has been replaced and that you now need to open the main valve again.



Log out. Make John turn on the main valve again ... leading to an accident.

This completes the procedure.

Find the missing puzzle piece

IMPORTANT:
This achievement has two parts. If the first part is not done correctly, the second part (and the achievement as a whole) will not unlock.

Part 1
Location: Level 1, Room 1 (Mom's room)
When: Chapter 3 (The Routine)
IMPORTANT: Do it before reading Book 2, otherwise you will miss it.
Inspect the framed jigsaw puzzle against the wall on the right of the screen, top.



Click on the icon that appears next to the frame at the top of the jigsaw.



Notice that a piece of the jigsaw is missing in that location.



Part 2
Location: Level 5, just after exiting the cold storage room by removing an air duct cover
When: Chapter 12 (Cold Storage)
WARNING: Do not drop down out of the duct to the room below yet, otherwise you will miss the puzzle piece. Locate the icon for the missing puzzle piece in the dark on the left side of the screen. If at this point you cannot find the icon at the indicated spot, you left out something in the first part (Level 1, Room 1).

Choose to leave

Right at the end of the game John has come to the exit door of the bunker. In his mind's eye his mother begs him not to open the door, reminding him of his promise to never leave her.

He can either leave or stay. Both outcomes unlock an achievement.

IMPORTANT: ALTERNATIVE ENDING & ACHIEVEMENT
You don't have to replay the whole game to get the alternative ending and achievement. After the game ends, go to the game menu and click on "Continue". This will take you back to the scene where John gets into the air duct leading from the cold storage room. Continue on to the part where you have to make the "Leave/Stay" decision and choose the alternative ending.

To LEAVE, click the icon on the RIGHT side of the screen.
This will trigger a cut scene and earn you the "Leave" achievement.

Choose to stay

Right at the end of the game John has come to the exit door of the bunker. In his mind's eye his mother begs him not to open the door, reminding him of his promise to never leave her.

He can either leave or stay. Both outcomes unlock an achievement.

IMPORTANT: ALTERNATIVE ENDING & ACHIEVEMENT
You don't have to replay the whole game to get the alternative ending and achievement. After the game ends, go to the game menu and click on "Continue". This will take you back to the scene where John gets into the air duct leading from the cold storage room. Continue on to the part where you have to make the "Leave/Stay" decision and choose the alternative ending.

To STAY, click the icon on the LEFT side of the screen.
This will trigger a different cut scene and earn you the "Stay" achievement (hidden achievement).

John has to get into the cold room to find the commissioner's keys, but he doesn't know the four-digit code to the door. As John keeps telling himself, he may be able to work it out though.

The clue to the code is the dried blood on the keys.



Some keys have more blood than others.
Logic suggests that the first key used would have more blood on it than the second key, the second key more blood than the third key, etc.

The code consists of 4 different numbers. It is easy to see that the 7, 8 and 3 have blood on them, but you have to look closer to identify the fourth key: 6. Barely visible.
In the order of most to least blood, the door code is revealed to be 3-7-8-6.

Nothing achievement related

∙ Book 1: The Bible (Mom's room)

∙ Missing Puzzle Piece part 1 (Mom's room) - do it BEFORE reading Book 2
∙ Book 2: Domestic Nuclear Shelters - Technical Guidance (Mom's room)
∙ Book 3: Treasure Island (automatic) (Mom's room)

∙ Toy 1: Mom (automatic after reading the Procedural Manual)
∙ Document 1: "my diary" (John's room)
∙ Document 2: Stock check-list (Store room)
∙ Document 3: Initial Pain Assessment Tool - document on patient Vera Tailor (Sick bay)

∙ Toy 2: Sam (Main office)
∙ Toy 3: Commissioner (Commissioner's room)
∙ Toy 4: Doctor ("Lecture room")
∙ Document 4: Top secret document (Main office)
∙ Document 5: Updated roster (Commissioner's room)
∙ Document 6: Minutes of a Bunker Committee Additional Meeting ("Lecture room")
∙ Cassette 1 (Main office)
∙ Cassette 2 ("Lecture room")
∙ Computer 1 (Main office)
∙ Computer 2 (Commissioner's room)

∙ Toy 5: Soldier (War room)
∙ Document 7: NBC suit safety guidelines (store room, level 3)

∙ Computer 3 (use 3 times - see section) (Air filtration room)
∙ Toy 6: Engineer (Air filtration room)
∙ Document 8: Air filtration unit check (Air filtration room)
∙ Document 9: Accident Book folder, contains Incident Report (Air filtration room)

∙ Document 10 (see warning): Lindane solution label (Sick bay)

∙ Toy 7: Nurse (emergency corridor)
∙ Document 11: Frank's note to PJ about the oxygen tanks (toolbox, emergency corridor)

∙ Toy 8: Churchill (War room)
∙ Cassette 3 (see warning) (bottom of emergency ladder)
∙ Toy 9: General (see warning) (bottom of emergency ladder)

Nothing achievement related

∙ Missing Puzzle Piece part 2 (see warning) (air duct)
∙ Leave or Stay (hidden achievement)