The Callisto Protocol Chapter 4: Habitat – Bios Collectible Locations

The Callisto Protocol Chapter 4: Habitat contains 7 Collectible Locations. This walkthrough will guide you to all collectibles (Data-Bios & Implant Bios) in chronological order. Finding all Bios unlocks the Grim Reaper trophy. This guide also includes all other trophies & achievements in chronological order to get the Platinum / 1000 Gamerscore in one playthrough.

All of the Collectibles are missable. There is no Chapter Select and no New Game Plus. If you die you must pick up any unsaved ones since the last checkpoint. You can keep track by pressing D-Pad Up > R1/RB > Data-Bios Menu. The game keeps multiple Autosaves, so if you missed something you can reload the nearest autosave and replay from there. You can also make Manual Saves.

Chapter 4: Habitat Collectibles

Patch 5.02 (June 29, 2023) changed 1 Collectible Location in this Chapter:

• Moved one log pickup in the upper corner of a room onto a box with a valve wheel

Data-Bios #13 – Dr. Caitlyn Mahler: Corruptors
Objective: Follow the Red Pipe
After going through an area with sludge on the floor, you will crawl through more sludge and will see a body being snatched up by a monster. Afterward follow the linear path until you climb up to another short vent-path and then drop out the other side where the sludge stops. On the left, in front of the door to “Purification B H207”, climb up the box to the small balcony with a resource chest on it. Next to this chest you find the collectible on a box.

Data-Bios #14 (Harvest #7) – Ofc. Bruno Vorenus: Crosswired
Objective: Follow the Red Pipe
From the last collectible, climb back down and enter the vent to the left of the door to “Purification B H207”. This leads to a room with 2 Gate Fuses you must pick up and place on the switches around the room (mandatory for advancing story). In the corner of the room near the exit is a corpse you can harvest.

Data-Bios #15 – Dr. Jae Moon-Bell: Cocoons
Objective: Follow the Red Pipe
After using valves and getting through the vent you opened with the last one, you will eventually end up in a room where you have to switch fuses again. The fuse can be found after climbing a ladder on the right. After opening the room you will end up in a hallway and you can either enter “Water Control H262” on the right or “Storage Hall H239” at the end of the corridor. Enter the Storage Hall H239, after switching fuses again and going through a decontamination chamber, you will find it on the right side of the room.

Data-Bios #16 (Harvest #8) – Ofc. James Reese: Suicide Guard
Objective: Get Code from Guard
Automatic from story progression, when you complete objective “Get Code from Guard”. You have to pick it up in order to progress. On the corpse in the room where you get introduced to enemies with tentacles.

Data-Bios #17 (Harvest #9) – Sgt. Bill Pekelo
Objective: Get Code from Guard
This is an automatic pickup from story progression, unmissable. Much later into the chapter (about 15-20 minutes later), after a long water slide section and after passing through the outside area into the Biodome (Botanical Garden). You pick this up automatically when completing the repeated objective “Get Code from Guard” after going through “Botanical H625” and climbing through a vent. (Note: you get multiple “Get Code from Guard” objectives throughout the chapter, this is a different one from the previous one, it’s about 10 minutes after a long water slide section, so just keep playing until the story forces you to pick it up, can’t miss it).
IMPORTANT – BUG WARNING: Make a Manual Save before picking it up! This collectible is known to not register in the Data-Bios Menu in some circumstances, especially if you die after picking it up it may unregister. Check immediately after picking it up ( > Data-Bios > Habitat > Sgt. Bill Pekelo). If it’s blacked out you must reload last autosave and recollect it. If you die after picking it up, double-check your inventory again that it’s still registered and didn’t reset your progress! If “Habitat” > “Bill Pekelo” is not blacked out it counted and you are good to go. This is also in the same area as the next Collectible.

Data-Bios #18 – Ofc. James Reese: Security
Objective: Get Code from Guard
In the same place as the last collectible. Instead of immediately using the harvested Data Bio from the Guard on the console, go through the opposite garden area “Botanical H264”. At the end of this area you can squeeze through a gap to find it. Reminder: if you die after leaving the botanical gardens, you may need to pick this up again (depends when the game triggers a checkpoint for you, so check the Data-Bios Menu in case you die after leaving the area).

Data-Bios #19 – Ofc. Kyle Serra: Evacuation
Objective: Reach the Utility Hatch
After the previous story section you will end up outside again and will have to head to the newly unlocked section. There you can either shiv the door or go down the hatch. Shiv the door first and at the end you will find it. There’s a Spitter and some normal enemies spawning here.

That’s everything in Chapter 4.

Next Up: Chapter 5 Collectibles

For all other Chapters, refer to The Callisto Protocol Collectibles Guide.