The Callisto Protocol Chapter 8: Tower contains 4 Collectible Location. 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 8: Tower Collectibles
Patch 5.02 (June 29, 2023) changed 3 Collectible Locations in this Chapter:
- Moved one log pickup to be inside a prison cell
- Moved one log pickup to be inside a Biophage infested hallway
- Moved one log pickup onto a table by a cherry tree
Data-Bios #40 – Dr. Tala Ismene: Observation
Objective: Exit the Server Control Room / Search for the Lab
After defeating yet another two-head and opening the door with the fuse, at the end of the hallway when going in the left direction.
Data-Bios #41 – Dr. Tala Ismene: Taken
Objective: Get Through Asylum / Unlock Door M150 with Fuse
In the psych ward after crawling through a vent to obtain a fuse, check the blocked stairs that you can go up halfway.
Data-Bios #42 – Edward Bates: Experimentation
Objective: Get Through the Medical Facility / Talk to Dr. Mahler
After fighting yet another two-head + mobs in a hallway with big fans, continue on and Dr. Mahler will open a door for you telling you to get inside. After going through the door check the right side to find it. 
Grim Reaper Trophy should unlock here! (If not, check your inventory and make sure all Data-Bios are registered from previous chapters, if one is missing you must replay the game).
Data-Bios #43 – Duncan Cole: Cole’s Triumph
Objective: Talk to Dr. Mahler
After taking the elevator up to the tower with Dani, this Data-Bio will be sitting on a white desk in the gallery-looking room after exiting the elevator. The trophy should already have popped from the previous Collectible but this one is the final entry in the Data-Bios menu.
That’s everything in Chapter 8. This is the last Chapter and completes the game.
For all other Chapters, refer to The Callisto Protocol Collectibles Guide.
Fail says
BRUH I had no idea new game plus was out when I started this playthrough. I just saw it after the credits ? I could have breezed through and only picked up the one I was missing and knocked out the new game plus trophy.