There is a total of 43 collectibles in The Callisto Protocol. Everything is missable and there are no chapter-select. I would highly recommend, that you make a manual save at least once per chapter. The collectibles are spread across a total of 8 chapters. It would take the average player about 8-10 hours to complete the game, while collecting all collectibles and exploring on the side.
IMPORTANT NOTE: If you find a collectible and die, then you have to pick it up again once it reloads checkpoint.
Finding all collectibles will earn you the trophy:
![The Callisto Protocol - All Collectible Locations [BIOS] | Grim Reaper Trophy / Achievement Guide](https://i.ytimg.com/vi/4nsbq3R76NI/hqdefault.jpg)
CHAPTER OVERVIEW
Chapter 1
- Data-Bios #1 – Jacob Lee: Jacob’s Job
Chapter 2
- Data-Bios #2 – Dr. Caitlyn Mahler: Mahler’s Appointment
- Data-Bios #3 – Elias Porter: Elias’s Anticipation
- Data-Bios #4 – Cpt. Leon Ferris: Ferris’s Lament
Chapter 3
- Data-Bios #5 (Harvest #1) – Sgt. Eric Jane: Locked Door
- Data-Bios #6 (Harvest #2) – Ofc. Pruitt Matos: Laundry
- Data-Bios #7 – Duncan Cole: Secret Room 1
- Data-Bios #8 (Harvest #3) – Dr. Ewan Hayes: MedLab Outbreak
- Data-Bios #9 (Harvest #4) – Ofc. Dachs Symmons: Hanged Guard
- Data-Bios #10 (Harvest #5) – Ofc. Kerry Brown
- Data-Bios #11 (Harvest #6) – Tadhg Song
- Data-Bios #12 – Dani Nakamura
Chapter 4
- Data-Bios #13 – Dr. Caitlyn Mahler: Corruptors
- Data-Bios #14 (Harvest #7) – Ofc. Bruno Vorenus: Crosswired
- Data-Bios #15 – Dr. Jae Moon-Bell: Cocoons
- Data-Bios #16 (Harvest #8) – Ofc. James Reese: Suicide Guard
- Data-Bios #17 (Harvest #9) – Sgt. Bill Pekelo –
- Data-Bios #18 – Ofc. James Reese: Security
- Data-Bios #19 – Ofc. Kyle Serra: Evacuation
Chapter 5
- Data-Bios #20 – Miranda Kristofich: Terraforming
- Data-Bios #21 (Harvest #10) – Richard Cids
- Data-Bios #22 – Dr. Caitlyn Mahler: Combustors
- Data-Bios #23 (Harvest #11) – Lt. Devon Wayne: Close the Gate
- Data-Bios #24 (Harvest #12) – Ofc. Aaron Taycho
- Data-Bios #25 – Max Barrow: Max’s Concern
- Data-Bios #26 (Harvest #13) – Sgt. Scott Dvitny: Eradication
- Data-Bios #27 – Dr. Caitlyn Mahler: Shipments
Chapter 6
- Data-Bios #28 – Dr. Sheehan Yune: Field Log 1
- Data-Bios #29 – Dr. Sheehan Yune: Field Log 2
- Data-Bios #30 (Harvest #14) – Dr. Sheehan Yune: Field Log 3
- Data-Bios #31 – Yannick Sage: Secret Room 2
- Data-Bios #32 (Harvest #15) – Arden Jeddha: Arcas Evacuation
Chapter 7
- Data-Bios #33 (Harvest #16) – Alex Wang: Miner Log 1
- Data-Bios #34 – Derryn Barr: Miner Log 2
- Data-Bios #35 (Harvest #17) – Derryn Barr: Miner Log 3
- Data-Bios #36 (Harvest #18) – Yannick Sage: The Mole
- Data-Bios #37 (Harvest #19) – Buidhe Reddwork: HighTown
- Data-Bios #38 (Harvest #20) – Ji-Kwan Park: Miner Log 4
- Data-Bios #39 – Duncan Cole: Disagreement
Chapter 8
- Data-Bios #40 – Dr. Tala Ismene: Observation
- Data-Bios #41 – Dr. Tala Ismene: Taken Data-Bios #42 – Edward Bates: Experimentation
- Data-Bios #43 – Duncan Cole: Cole’s Triumph