The Killing Antidote Codes, Collectables and Secrets

This guide is now mostly content complete, I will make some small edits to make it more consistent, however, I will continue to make updates as things may change due to early access. I have done my best to avoid spoilers, but please be aware the collectables section is meant for a second play through and I have used some information to identify areas where collectables are.
I have given both a hint as well as the codes for those that still want to try and figure the answers out.

Contents:
Before Beginning
Unlocking Challenge Modes
Key Codes
Weakened Walls
Element-Z Badges
Golden Skull Statues
Hard Drives
Collectable Figures

To Do List:
QA the whole guide- I have now uploaded everything I originally wanted to. All that is left is to make sure I iron out any typos, add missing images, and improve photo quality in some areas. I will also do a pass on the text to make sure the guide is as clear and concise as it can be.

This is my first time writing a guide, I assume there will be room for improvement.
Constructive feedback is very welcome!

I DO NOT give permission for this guide to be fully or partially uploaded to any external websites or platforms! If you would like to host it please have the decency to ask for permission first!

Before Beginning

Some sections will be inaccessible to Jodi on your first play through, this means you will not be able to get some hard drives and collectables on your first run. There are currently four locations that are blocked off on the first play through, I will outline them below.
With the exception of the shower chase scene with the Devourer, you can backtrack to all other sections of the story mode. However, be careful not to drop down the hole at the bottom of the large stairwell if you have not left the elevator to B2 powered on, this will trap you on B2 and you will not be able to finish the game. Another soft lock are is on A1, there is a pit with three hanging Squirters, do not fall into this pit, you will have to load an earlier save as there is no way to get out.

Sealed Areas During First Run

1/4 A2 Corridor

At the very beginning of the game you will enter an office, once you proceed and leave this room there will be a shelf blocking the path to your right. This leads to the storage box where you can retrieve items from challenges and previous story runs. No items carry over from your first play through.

2/4 B2 Tunnels

In the lower tunnels you will get to an elevator on B2 where you can escape this area, opposite the elevator doors is a door blocked by a shelf, it contains the Wedding Veil and a Golden Skull Statue, you cannot get the Veil, but you can shoot the Skull.

A5 Lounge corridor

The highest floor you can take the elevator to is A5, however, this floor is completely blocked off for now. On this floor is a bedroom with a shower, this room contains a hard drive and the Wedding Dress (Once all hard drives are collected). Beyond the lounge is a second combat room, where if you survive all waves you unlock a door that leads to a back office and a hard drive.

A1 Elevator corridor

Similar to A5, if you take the elevator to A1 the floor is almost immediately sealed off. This corridor leads to several traps and a clothing item. Be careful not to fall into the pit, there is no way out.

Unlocking Challenge Modes

The challenge modes offer a variety of different ways to play, and offer the chance to find new outfits for Jodi. Some of these game modes are locked until certain items have been collected, these items will be listed below.

1/4 A2 Control room

Check the photograph on the notice board, this will unlock Centralized Control Area. This is in the room near the beginning of the game where you press a button on a wall to unlock double doors.

2/4 B1 Watter supply room

The toy plane on top of the middle water tank unlocks Abandoned Hanger.

3/4 A3 Monitoring office

There is a heart drawn in blood outside a locked office (Code: 1314), inside this room is a notice board, check the photo to unlock Desperate Weepers.

4/4 E0 Fan tunnels

After escaping the Devourer, you will have to go through a large tunnrl with a fan, after opening a door in this area you will come to a small set of stairs. The Pumpkin Baby statue can be seen in this room and it unlocks Nightmare Castle.

Keypad Codes

A2 Locker storeroom

Code is written on a nearby wall.
5678

A2 Shotgun room

Look through the window and swap shoulders to get a better aim at the door lock.

A2 Control Room

Code is written on a nearby control unit
#520

A2 Data Room

Password must be reset on the pc in the captain’s room.
0000

A3 Heart Room

Code is given in an audio file found on floor A4 beside submachine gun room.
1314

A1 Captain’s Room

Code is written on a wall nearby.
6090

A3 Butterfly Poster Office

The code can be found within an email in the near by computer.
1180

A3 Planning Department

Written on the back of a wedding photograph.
0210

A3 area duty room

Code is hidden in a nearby poster.
3964

A4 Submachine gun room

Code is hidden within a nearby poster showings gifts.
3758

E2 Loading area office (stealth section)

There are four posters scattered throughout this area that contain the code.
9842

B2 Body bag room

The code is written in two parts, one on a wall, the other on a door, both nearby.
2940

A4 storeroom

A note nearby contains a codex for revealing the code.
9885

A4 Office before white card room, after pressure puzzle

Written on the wall in the stair well. Line the code up correctly.
6083

A4 Elevator control room

Code is hidden by two lockers in the room.
3974

B1 Monitoring Room

Being able to read Chinese will help with locating the nearby code.
****

B2 Observation Area

The 'password' is spelled out somewhere in the room.
5530

Element-Z Badges

1/26 Stairwell A3-A4

Continue up the stairwell between A3 and A4.

2/26 A2 Catwalk area

After dropping down from the broken walkway from A3 to A2, follow round to the opposite side.

3/26 D2 small room with broken ceiling

After turning the fire off you will climb up to the next floor, in the top right corner there is a hole in the floor. Drop down and the badge is in the corner.

4/26 D3 Shower locker room

The far-right locker in the room connected to the shower area.

5/26 D3 atrium red key card door

After finding the red key card in the shower lockers and exiting the room you will be able to see a door that requires the red key to access.

6/26 D4 first weeper encounter

After turning the hot water back on you will be forced to go the A3 to get back to the shower. You will encounter a Weaper, the badge is on the table next to her.

7/26 D4 Atrium

After the weeper encounter and on your way back to the shower you will come back into the atrium area, the coin is on a shelf.

8/26 E0 Toilet

After escaping the Devourer there is a room with a mine in the middle, on the left side of this area is a toilet, the coin is on it.

9/26 E0 Storeroom

After dodging the fan blades, you will come across a locked door. Shoot the gas can through the window to blow the door open. You may have to return to this after getting a gun.

10/26 E2/E1 Atrium

In the stealth section, drop on to the green fishing containers below. Run over to the red container where the badge is located. Best to return after getting your weapons back, you will alert enemies.

11/26 E3 Corridor

On the bottom shelf that is next to the yellow locker, again in the stealth section. Unlike the first one, this one can be obtained without alerting enemies, still may be better to come back with weapons.

12/26 E1 Atrium

On the ground on the near the green fishing container on the bottom floor of the atrium. Best to come back with a weapon, you will be alerted getting this one.

13/26 E2 Box storage

After using the blue key card to open the door follow the corridor around, once you enter the room with the large boxes turn around. The badge is on the lowest shelf in the doorway.

14/26 B1 Large stairwell

Follow the stairwell down to the lowest point, the badge is on the ground.

15/26 A1 Back office

On the A1 level of the stairwell there is a door requiring a red key card, to its right is a cracked wall, use explosives to get inside. The badge will be in this office room on a desk.

16/26 A2 Lounge corridor

From the large stairwell go to the A2 level go through the door and the badge will be on a crate in the corridor before the safe area.

17/26 B3 tunnels

After ending up at the bottom of the stairwell navigate the tunnels until you find a ladder, do not climb up the badge is on the other side of the ladder wall in a small alcove.

18/ 26 B2 Upper tunnels

After climbing the ladder turn around and jump across the gap. The badge is round the small corner.

19/26 B2 Body bag room

Use the code to open the locker, the badge is inside. The code can be found on the wall and door nearby.

20/26 B2 Security room

Exit the body bag room by using the door to the right of the last badge, go directly forward to the doorway with blood on the ground, navigate this floor until you find the hole at the bottom of the stair well, do not jump down but carry on through the corridor, at the end there is a small room the badge is inside the locker.

21/26 A4 Waiting area

After you use explosives to break a wall and jump across the gap proceed down the corridor until zombies break through a door behind you. The badge will be in this room on top of a collection of books.

22/26 A4 Combat training room

As you enter the room the badge is on the back of the pillar on the right side.

23/26 A3 Meeting room

After using the orange key card you will get to a large meeting room, the badge is on the table.

24/26 White key card room

After using the white key card climb up on the boxes and hop over the railing. Go to the right and the badge will be on a shelf in this small alcove.

25/26 A4 Elevator control room

Use the code hidden in the outer two lockers to open the sealed one, the badge is inside.

26/26 B1 Large storeroom

The final badge can be found on your way to powering on the generators, as you exit the elevator you will see the mount for a defensive item. Place the zapper to trigger an attack and zombies will break down the double doors. The badge is in the back of this room on a shelf.

26/26 Reward

Wedding/ lace white gloves

Golden Skull Statues

1/20 A1 Storeroom connected to the warehouse

After unlocking the double doors from the control room enter the room, but before going up the tight stairwell stop and look behind the stacked crates.

2/20 A1 Corridor before Captain’s Room

After the section where you need to crouch to go through a vent you will reach a double door that zombies break down. Go through the door and halfway down the corridor look to the right, the mask can be seen on a wall that the shelf is blocking.

3/20 A1 Mine Detector room

Use the blue keycard to enter the mine detector room, the statue is behind the door. You will need to close the door from the inside to see it.

4/20 B1 corridor

Corridor where the valve access to turn the fire off is. Look through the shelves blocking a room, the statue can be seen on the back wall.

5/20 B1 Security office

Just after the last statue, you will come across a T-junction, turn right. You will see the statue inside a sealed off office. Shoot it through the window.

6/20 B1 Water supply room

Once you enter the water supply room turn around and look up above the door you came through.

7/20 D2 Atrium

After turning the fire off you will enter an atrium, the statue is in a room to the right.

8/20 B1 Below water control room

After using the red key card card to access the water control room you will have to use explosives to escape, the statue is in the room below full of Crawlers.

9/20 E0 Fan Access

After escaping the Devourer you will encounter a large fan that you need to roll through. The statue is on the wall to the right just before the fan tunnel.

10/20 E0 Fan Access

Once you have rolled through the fan you will get to a small corridor, look to the right. The statue can be seen on the other side of the chain fence.

11/20 E2 Toilets

In the stealth section area, there are toilets in the back, the statue is in the cubical to the right. Might be better to come back once getting weapons.

12/20 E1 Atrium

On the lower floor of the atrium there are two fishing containers, the statue is on the base of the atrium floor above. Better to wait until after the stealth section.

13/20 E1 Atrium stairwell

In atrium where the stealth section takes place there is a tight stairwell at the back of the room. The statue is on the wall halfway in the stairwell.

14/20 A1 Large Storeroom

After retrieving your gear there is a door that requires a red key card, inside is a large storeroom and the statue is on the back wall. This is the room where you fight the Predator.

15/20 B3 Tunnels

After ending up at the bottom of the large stairwell you will have to crawl through a small vent, before you do check the area behind the broken wall. The statue is on the left wall.

16/20 B3 Tunnels

Once you exit the small storeroom that the vent takes you to turn right and make your way to the back end of the tunnels. It is on the opposite side of the tunnels to the ladder. In this small alcove there is a metal shelf with a med kit.

17/20 B2 Body bag room

After climbing up the ladder and exploring more tunnels you will get to a small office with several body bags in it. The statue is on the wall in one of the corners.

18/20 B2 Small room

There is a small room that is sealed off in your first play-through, it is opposite the elevator you use to leave the tunnel area. The statue can be shot by switching shoulder to get a better aim. In subsequent play-throughs you can enter the room and get a better shot.

19/20 A4 Cat-walk area

After escaping the tunnel area by elevator, you will come to a part of the game where you need to use an explosive to break a cracked wall. After this you need to make a jump across a gap to the other side, on the other side turn around. The statue is above the area you jumped from.

20/20 B1 Power Center

On the way up to the generator control room look up, you will see the statue spinning on the blades of the large fan above.

Reward

White tights. Possibly unrelated, but after I found all the Golden Masks the Wedding Dress appeared in the A5 bedroom. It was not there before this and I cannot think what else triggered the spawn.

Hard Drives

1/11 A2 Control room

Inside the sealed locker, the code is : #520

2/11 A3 Sealed office

There is a heart drawn in blood on a wall outside this office. The code is: 1314 , the hard drive is in a locker in this room.

3/11 A2 Small office

After dropping down from A3 to the A2 catwalk go round the corner to the small office at the end. The hard drive is on the table inside.

4/11 A2 Data Room

Inside the room where the crying is coming from. This is the room that needs its code reset to 0000.

5/11 A3 Planning Department

The hard drive is inside the sealed locker, the code is: 0210 .

6/11 E2 Back office

After the stealth section you will pass a room full of large supply crates, in the back of this area is a locked office. In this room there is a locker, the hard drive can be found inside.

7/11 A4 Office room

Once you reach the part in the story where you have to blow up a cracked wall and jump through it you will see a door. This leads to an office, at the front of this room is a briefcase with a hard drive inside.

8/11 D3 Large meeting room

The hard drive is on the table in the large meeting room.

9/11 A4 Storeroom

After using the white key card you will need to climb up some crates to reach a balcony, the door leads to a small storeroom. In this room there is a sealed locker, code 6083 , the hard drive is inside.

10/11 A5 Lounge

On your second play through the A5 floor will be open to explore. The hard drive is inside a wardrobe in the lounge room.

11/11 A5 Combat room back office

On your second play through, the combat room on A5 will be accessible. You must survive all waves to access the locked room on the lower floor of the combat area. The final hard drive is inside a locked briefcase on the desk.

Collectable Figures

There are collectables in both the story and challenge modes. In the play test there was a statue of a Nutcracker that I have not found in this version, it may be that I missed it or that it has not been added. If you have found any that I am missing, please let me know and I will update this guide.

​

​Story Mode

​1/12 A3 Back office

The ballerina statue is in the small back office next to the planning department.

​2/12 B1 Water supply room

The small toy plane is on top of the middle water tank. You can use the ladder on the back of one of the side tanks to get to it.

​3/12 D2 Atrium office

The snowman statue can be found in the small office on a table.

​4/12 E0 Fan tunnels

The pumpkin statue can be found in the area just after dodging through the large fan.

​5/12 E1 Lounge corridor

The floor below your starting point in the stealth section is a small warehouse, at the back of this there is a vent, crawl through this and exit the door to your right. The black cat statue can be found in the rafter just above this door.

​6/12 E2/E1 Utility room

The figure of the boat can be found in the small safe room in the tight stairwell between E2 and E1.

​7/12 E2 Small storeroom

In the stealth section, after getting the blue key card you will enter a hallway, halfway up is a locked door that requires a yellow key card. The model train is inside this room on a shelf.

​8/12 E2 Back office

From the area with the model train carry on until you get to the office that requires a code to enter. The code is: 9842 . Inside this office you will find the black gorilla statue on the table.

​9/12 B2 Tunnels

Exit the body bag room from the door with the number 40 written on it, go straight ahead and through the doorway with a bloody drag mark. Go straight through the door, but do not turn. At the wall turn right, you will see the toy rocket in the small alcove sat on a wooden crate.

​10/12 B1 Security room

Following on from the toy rocket, carry on down the hallway until you see the hole in the floor. Do not jump down, but carry on through the small passage. At the end of this is a small security office. The creep clown figure is on a small shelf in this room.

​11/12 A4 Office room

After having to blow up a wall to proceed the story you will have to jump over a gap. Dead ahead of you will be a door, this leads to an office. In this room there is a cupboard with a model train carriage.

​12/12 B1 Staff dormitory

After taking the elevator to B1 a safe room will be on your left, inside is a wardrobe containing a model train carriage.

​Challenge Mode: Abandoned Hanger

​A2 Corridor

From the beginning you are forced to pass through this corridor to leave the starting area.

​A2 Lower atrium

In the atrium go to the left side and up the stair case to the top floor.

​A3 Room with multiple doors

Turn right as you exit, take the door on the left.

​A3 Upper atrium

On the top level of the atrium follow around to the other side and go to the top left corner of the room as you had entered.

​A3 Wooden walkway

On the other side of the atrium you will see two planks of wood stretching to the adjacent building. Go across this and turn right, the room with the toy train will be the first door on your left.

​A3 Store room

At the back of this room is a model train.

​Jodi's office

This is the collection I have so far, to date I have found 13 collectable figures. 12 in story mode and 1 in the Abandoned Hanger challenge mode. As mentioned earlier, there is at least one figure (Nutcracker) from the play test that I have not found in this version, I cannot confirm if it is in the early access version.

Audio Files

The list may not be complete, as there was no reward for finding them all, I also feel there was a large section of the level that had no audio files. If you notice any I have missed or not found, please let me know and I will update.
The audio files are much easier to find compared to the other collectables, I believe this is because they help to expand the story.

1/14 A2 Corridor

Guard Captain, April 5th, 2033. Just after you climb over the first wooden crate you will enter a corridor with a large blood stain. The first audio file is halfway down this corridor.

2/14 A2 Small room

Staff Member, April 5th, 2033. In front of the A2 Data Room there is a small room with a bed frame, on top of this is a box with an audio file on it.

3/14 A1 Warehouse storage

Staff Member, April 3rd, 2033. After opening the double doors from the control room, you will enter a storeroom with multiple shelves. At the back before the tight stairwell is a shelf with an audio file on it.

4/14 A1 Warehouse storage

Staff member, April 5th, 2033. After dropping down from A3 to A1 you will have to crouch through a vent with four crawlers, you will exit into a tiny storeroom. After this you will come to a set of wooden doors with a red X on it, the audio file is on the ground in front of it.

5/14 A2 Data Room

Storage Depot- Captain, April 3rd, 2033. Once you reset the code for the A2 data room to 0000 and open the door, you will see the audio file inside on a table.

6/14 A3 Planning department

Researcher, January 13th, 2033. The audio file is on the large table inside the planning department office.

7/14 A4 Waiting area

Researcher- Jessie, April 5th, 2033. Outside the armory with the submachine gun is a couple of shelves, the audio file is on the left one. These shelves will be moved after turning the water heating on, so this area will look slightly different on your first visit.

8/14 D3 Atrium

Logistics supervisor, March 19th, 2033. On the second floor of the atrium, you will find a blocked door to the D3 Staff Quarters; to the right of this door is a smashed wall. Go through the gap in the wall and you will see the audio file on a small desk.

9/14 B1 Pump Room

Researcher- (Chinese characters), April 5th, 2033. You will find the audio file sitting on top of a barrel in the pump room where you turn the water heating on. It will be in front of you as you enter.

10/14 B3 Tunnels

Staff member, April 4th, 2033. After the cutscene where Jodi ends up at the bottom of the large stairwell, you will be in some tunnels. As you approach a vent that you have to crawl through you will see the audio file in front of the vent entrance.

11/14 B2 Body bag room

Staff member- Nameless, April 4th, 2033. This audio file is found in the room that has hanging bodies and body bags. It is on the metal shelf on the right-hand wall as you enter.

12/14 A4 Waiting area

Staff member- MHY April 4th, 2033. After you escape the tunnels using the elevator you will reach A4 and have to use explosives to proceed. On the other side of this jump you will find a waiting room that loops back to the A4 elevator corridor. The audio file is in this waiting room, at the back next to the door.

13/14 A4 Tiny room

Staff member (Chinese characters) Jan 1st,1. (Likely a typo in game) After you use the white key card you will have to climb up on two wooden crates to reach a balcony. Once you go through the door on this level you will enter a tiny room, the audio file is on at metal shelf inside.

14/14 A1 Elevator access

Security officer- (Chinese characters), April 5th, 2033. Once you get to the elevator control room, power it to A1. As you exit the elevator you will see the audio file dead ahead on a row of seats.

Weakened Walls

A1 warehouse secret

Use an explosive on the cracked wall and climb up on the fishing container.

A1 storeroom secret

Use an explosive on the cracked wall visible in the area with railings and a steep drop . Jump on the aircon units from floor A3.

B2 Tunnels secret armory one

After a cut scene where Jodi falls down the stairwell, there will be an armory visible after crawling through a vent. Use an explosive to break the cracked wall, you will then need to work your way around to the back.

B2 Tunnels secret armory two

(UPDATE: This cracked wall no longer exists, there is a door to get to this area now)While searching the tunnels and looking for the wall you broke for the first tunnel secret you will come across another one. It will be near a shelf and a wire fence.

Stairwell secret

In the stairwell you will come across a door that requires a red key card, to its right is a cracked wall, use an explosive on it to get inside.

[bja]

In order to figure out the keypad codes at B1 and B2 (monitoring and observation area), i did all kind of mental gymnastics ranging from data interpretation to algebra but still couldn't figure out. Hence, i came here and on knowing the keypad codes i realised that i really need to go outside and touch the grass. Thanks for the guide.

[Klare]

@Bad_Squirrel
I am pretty sure it is a bug, they changed the amount a while ago but never added a 12th HDD.

[Bad_Squirrel]

It still say there is 11/12 hard drives is there now a 12th with the new chapter or did the game designer forget to change the amount of hard drives?

[Klare]

@DeanieWeenie97
Did you ever find the missing badge? I never saw your message until now.

[Klare]

@Gr4mas
If it is the A3 area duty room then the poster is shown in the photo for the hint and as @William JCM mention it is the gaps in the four circles that give you the number.
In the game there are no ‘keys’ or explanations for the puzzels, you have to try different things. That is why I gave people the option of using the guide to give you the code, or give you a hint as where to look.

[William JCM]

> "Code is hidden in a nearby poster."
> BUT WHERE IS THIS CODE ?
Assuming you're talking about the A3 area duty room one, yeah, it's poorly explained. Look at the circles, or rather the holes in them. Map them to hour positions on an analog clock.

> "Code is hidden within a nearby poster showings gifts."
> How someone knows the code ? where is they "key" to understand the right code ?
Look at the gift positions in each section and map them to the keypad positions.

[Gr4mas]

"Code is hidden within a nearby poster showings gifts."
How someone knows the code ? where is they "key" to understand the right code ?

[Gr4mas]

"Code is hidden in a nearby poster."

BUT WHERE IS THIS CODE ?

[DeanieWeenie97]

I have 25/26 z badges and the can't find the last one. Ive tried searching every spot in the guide several times and its not in any of them

[William JCM]

Yeah, I didn't know about the melee trick either until I decided to try it out on my second playthrough because I was curious.