What can you do as a free member?

Member benefits illustration

Create your free account today and unlock all our premium features and tools to enhance your gaming experience.

Member benefits illustration

Create your free account today and save articles to your watchlist and get notified when they're updated with new information.

Member benefits illustration

Create your free account today and save your favorite games for quick access later, synced across all your devices.

Member benefits illustration

By creating a Game8 account and logging in, you'll receive instant notifications when someone replies to your posts.

Comment rating feature illustration

By creating a Game8 account and logging in, you can make use of convenient features in the comments section, such as rating and sorting comments.

Premium archive feature illustration

By creating a Game8 account and logging in, you can access Premium articles that are exclusively available to members.

Site Interface

Guest
Free Member
Article Watchlist
Game Bookmarks
Cross-device Sync
Light/Dark Theme Toggle
User Profiles
Direct Feedback
Comment Rating

Game Tools

Guest
Free Member
Interactive Map Access
Interactive Map Pins
Interactive Map Comments
Interactive Map Pins Cross-Device
Check List
Event Choice Checker
Deck Builder Cross-Device
Message Board Notification
Message Board Cross-Device
Build Planner
Stat Calculator
Diagnostic Tool
Weapon/Armor Wishlist

Want more information?Learn more

The Callisto Protocol

Chapter 8: Tower Walkthrough and Data Bios Locations

6
Add to Watchlist

★Game8's Dead Space Remake is now live!
★ game8 Review of the Callisto Protocol - Is it Worth Playing?
☆ All Implant Bios Locations
★ Use the guns in our Best Weapons Guide!
☆ How to Use Contraband Pack & List of Contents
★ Clips of All Death Animations
☆ Season Pass Guide - Price and All Contents!

Callisto Protocol - Tower

Tower is the last chapter of The Callisto Protocol's main story. Read on for a detailed walkthrough, list of rewards, tips for completion, Tower Data Bios Locations, as well as other strategies!

Previous Chapter Next Chapter
Colony -

List of Contents

Tower Walkthrough

Tower Summary

Tower Objectives
Checkmark.pngSearch for the Lab.
Checkmark.pngTalk to Dr. Mahler.
Checkmark.pngLook for the Warden.
Checkmark.pngGet to the Escape Pods.

Tower Objectives

Objectives
1 Find Mahler
The Callisto Protocol placeholder quest iconFind Dr. Mahler.
Jacob is right back where he started; in his prison cell. After the conversation with Mahler, get out of your cell and go right towards Securty P341. The loot crate has a Larva in it, don't bother opening. Go through the door and resupply with the Reforge, as there's a Two-Head in the other room.
2 Get the Fuse
The Callisto Protocol placeholder quest iconGet the Gate Fuse.
Panopticon Surveillance B330 needs a Gate Fuse to unlock. Head on back to Server Room B315 to get the Fuse. The Two-Head will be right in front of where the Fuse is. Use the server room's tight square layout to your advantage.
►How to Beat the Two Head
3 Panopticon
The Callisto Protocol placeholder quest iconGet to Psyc Block 1 A320.
Once you have the fuse, go through Panopticon Surveillance B330. There will be a couple of enemies that will spawn, if they bare tentacles be sure to shoot those immediate before they get a chance to mutate. Use the Shiv to unlock the yellow door at the end of the hall.
4 Morgue
The Callisto Protocol placeholder quest iconGet to Psych Black 2 A220.
Once your're inside Psyc Block 1 A320, be wary of every body you see, every glass window and vent. Enemies will be popping left and right in this area, all of them will mutate if not dealt with immediately.

Go down the stairs at the end of the hall. More enemies will appear. Take a detour through Morgue A222. Two enemies will appear inside the Morgue, but you can use the GRP to hurl them into the spikes. When you exit the Morgue a Crawler and a Spitter will spawn the end of the room. Use the GRP to get the explosive canister and chuck it at both enemies to save time.
5 Storage
The Callisto Protocol placeholder quest iconPass through Biohazard Storage A230.
If you want to loot for some items, you can go into Nurse Station 2 A240. Go back to the hall and into storage room. Another enemy will spawn in there. Use the GRP to throw them off the ledge then climb down the ladder.
6 Psyc Block 1 A110
The Callisto Protocol placeholder quest iconPass through Psyc Block 1 A110.
Once inside, the door to your right requires a Gate Fuse to be operational. It goes without saying, there will be enemies that randomly pop as you go down the hall. Go left and use the GRP to open the vent at the end of the hall.

Crawl up the vents and when you get down, the Gate Fuse will be in the room to your right. Run back down the hall and use the Shiv to unlock the door. Then use the Gate Fuse to open Access Hall M150 down the hall.
7 Mezzanine M123
The Callisto Protocol placeholder quest iconHead to Mezzanine M123.
 Resupply with ammo and use the Health Injector from the wall mounted box. Head up the Mezzanine and go down the stairs where a Spitter will spawn. Use the GRP to chuck the Splitter intoto the giant fan at the end of the room.
8 2nd TwoHead
The Callisto Protocol placeholder quest iconFace another Two-Head.
After dealing with the Spitter, head to the large open area and the Two-Head will appear. You can use the layout of the room to make this another game of cat and mouse. Get some some distance and shoot at it as it tries to close in.
►How to Beat the Two Head
9 Research Checkpoint R001
The Callisto Protocol placeholder quest iconGo through Research Checkpoint R001.
Head to the end of the hall and then make a left towards the research lab. Keep moving forward until you reach Mahler and Dani at the very end of the hall. Wait until the cutscene finishes and then you and Dani can go straight to the Warden.
10 Learn the truth
The Callisto Protocol placeholder quest iconLearn the truth of your actions.
Once you regain control, go throught the hall at the other end of the room. Follow the path until you hit the elevator. Once you get off from the elevator, just keep moving forward until you reach the door that triggers another cutscene.

After learning that you are partially responsible for the attack on Europa, Jacob will try and rectify his mistakes by saving Dani and killing the Warden.
11 Last Chance
The Callisto Protocol placeholder quest iconPrepare for the final fight.
Head up the ramp and down the hall. Use the Reforge station to make last-minute upgrades and resupply with ammo. Heal up and selll the remaining items in your inventory save for ammo. Check the other end of the hall for lootable boxes for ammo, health, or other sellable items.
12 Use the Shiv
The Callisto Protocol placeholder quest iconFace the Warden.
Whenever you're ready, use the Shiv to open the locked door. After the cutscene, get ready to fight the Alpha.
13
The Callisto Protocol placeholder quest iconDodge Ferris's attacks.
Save your bullets for now and deal with Ferris in the same way you did in the previous chapter. Time your dodges, and just attack him with the Stun Baton. Don't even bother shooting him when the Strategic Targeting System prompt shows up. You'll need the bullets for later.
14 Alpha Ferris
The Callisto Protocol placeholder quest iconDefeat Alpha Ferris.
Ferris in his Alpha form is much stronger and durable. Its face will be its only weakspot. Circle the area to find explosive cannisters and use the GRP to chuck them at the barrier he creates around his face.

When the barrier is gone, this is the time to deal as much damage to Ferris before he screams and regenerates the barrier. Crawlers will start to spawn mid-fight. After break the barrier enough times, Ferris will go down and you can synthesize the antidote.
15 Escape Pod
The Callisto Protocol placeholder quest iconGet to the escape pods!
After defeating Ferris, Warden Cole will show up and offer you a chance in exchange for the antidote. Dani will arrive and you will both learn that the Warden was never in any real danger. Jacob will use the antidote on Dani. Once you regain control, you must both get to the escape pod. You must hurry because you can still die if you do not reach the pod in time. When you get there you lear that there is only one pod left. Jacob sacrifices himself to save Dani, and a cutscene will play triggering the end of the game.

Tower Obtainable Weapons

Tactical Pistol

Tactical Pistol
Tactical Pistol
Preferred by ex-military officers for its low recoil and high rate of fire. Based on the UJC Modular Weapons Platform.
Type Sidearm
Acquisition Type Printed at the Reforge Station
Print Price 600 Credits
Base Ammo Capacity 10

If you missed the Tactical Pistol in the previous chapter, you can still pick its schematics inside the Tower. You can pick up the schematics in either in front of Cellblock 34 P340 or inside Mezzanine M123.
Tactical Pistol Upgrades and How to Get

UJC Assault Rifle

Assault Rifle
Assault Rifle
A three-round burst automatic rifle assigned only to the elite Black Iron Squad Nine. Based on the UJC Modular Weapons Platform.
Type Primary
Acquisition Type Printed at the Reforge Station
Print Price 1000 Credits
Base Ammo Capacity 20

If you missed the UJC Assault Rifle in the previous chapter you can still pick up its schematics in Access Hall M150. The only drawback to getting this at this point in the game lis that you may not have enough Callisto Credits to fully upgrade it before you face the final boss.
Assault Rifle Upgrades and How to Get

Tower Enemies Encountered

Two-Head Tips and Strategies

Anticipate Corners

Anticipate Corners

When you fight the Two-Head in the Server Room, the area might feel smaller than the last encounter but this is a good thing. Create distance between you and the Two-Head and simply anticipate for either of the two heads to pop up in the corner before you take your shot.

Chuck Enemies into Hazards

Chuck Enemies into Fans

In the area where you fight the second Two-Head, there will be 3 industrial fans in the area. Once the Two-Head spawns, a few enemies will sometimes spawn to flank you from other sides. Use the GRP to throw these enemies into the fans or the spikes before focusing on the Two-Head.

How to Beat Two-Head Boss

Alpha Ferris Tips and Strategies

Chuck Explosive Cannisters

The barrier Alpha Ferris puts up to cover his face is the main target you want to destroy to really deal some damage. There are explosive cannisters you can chuck towards the barrier making it more susceptible to gunfire.

Use the Crawlers as Bombs

Crawlers
While it makes sense to shoot the Crawlers the moment you see them, you can also use them to your advantage. When you run out of explosive cannisters to throw at Alpha Ferris, you can shoot the Crawlers that are close to him, triggering them to explode and dealing damage to Alpha Ferris in the process.

Ferris Boss Fight Guide: How to Beat the Final Boss

Tower Data Bio Locations

Dr. Tala Ismene: Observation (Audio Log)

1
The Callisto Protocol - Hallway Leading to Observation Audio Log
After unlocking the door to Panopticon Surveillance B330 with a Gate Fuse, head through and turn toward the hallway on the left.
2
The Callisto Protocol - Observation Audio Log Data-Bio
Reach the end of the hallway to find this Audio Log on top of a table. Note that two enemies will ambush you when you reach the Audio Log, so take them out first before picking it up.
*
Observation Data Bio Location
Depending on your version of the game, this Audio Log may also be on a table inside the broken window of one of the cells nearby.

Dr. Tala Ismene: Taken (Audio Log)

1
Taken Data Bio Location
This Audio Log can be found on a biohazard container right outside the entrance to Psyc Block 1 A110.
*
The Callisto Protocol - Taken Audio Log Data-Bio
In older versions of the game, this Audio Log is located on a container up a set of stairs near the vent exit of Access Hall M150.

Edward Bates: Experimentation (Audio Log)

1
The Callisto Protocol - Research Checkpoint R001 Door
After defeating the two-head near the surgical theater, head through the door to Research Checkpoint R001.
2
The Callisto Protocol - Doorway Leading to Experimentation Audio Log
Proceed past the security checkpoint and through the doors marked "Unlocked".
3
The Callisto Protocol - Experimentation Audio Log Data-Bio
Once inside, you can find this Audio Log on a small metal structure on the right side.

Duncan Cole: Cole’s Triumph (Audio Log)

1
The Callisto Protocol - Doorway Leading to Cole
After heading up the elevator with Dani, move forward to the next room.
2
The Callisto Protocol - Cole
You can find this Audio Log on a table at the far left side of the room.

All Implant Bio Locations

The Callisto Protocol Related Guides

Callisto Protocol - Story Walkthrough Partial.png
Complete Story Walkthrough

List of Chapters

Chapter Summary
Cargo
(Chapter 1) 		Jacob and Max are flying from Europa to Callisto on a standard supply run when they learn that they have been boarded by the Outer Way terrorist organization.
Outbreak
(Chapter 2) 		Jacob finds himself a prisoner of Black Iron Prison. When he wakes up, Black Iron is in complete chaos. Now he has to find a way out of this hellhole.
Aftermath
(Chapter 3) 		Jacob must help Elias free the one prisoner that can get them out Callisto. Jacob must venture deeper into the facility to access SHU, the maximum-security unit where that prisoner is held captive.
Habitat
(Chapter 4) 		Jacob has to rendezvous with Elias at the Tram Station in the Habitat Dome. These creatures have begun mutating, evolving into stronger enemies.
Lost
(Chapter 5) 		Jacob is out of Black Iron Prison, but now he finds himself in the barren wastelands of Callisto. Dani has a plan to get to the hangar, but everything doesn't always go according to plan.
Below
(Chapter 6) 		Jacob wakes up underneath all the rubble of the fallen hangar and learns the existence of Arcas, the first colony. Now he has to bring power back to the station to use the transport platform to Arcas.
Colony
(Chapter 7) 		Jacob arrives at the Arcas colony and learns of the truth behind the Callisto Outbreak. Now he must race back to the warden's tower or face the consequences.
Tower
(Chapter 8) 		Jacob finds himself a prisoner of Black Iron Prison yet again. Only one thing remains: he has to race against time to save Dani and get off Callisto.

Comment

See more comments (6 Comments)

Author

The Callisto Protocol Walkthrough Team
This article was created by Game8's elite team of writers and gamers.
    Leave feedback(Login required)
    Please participate in our site
    improvement survey
    12/2025
    Would you assist in
    improving Game8's site?
    ×
    This survey will take about 1 minute.
    Your answers will help us to improve our website.
    We are listening to our users' valuable opinions and discussing how to act on them.
    The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
    Begin Survey
    Not Now
    ×
    Please rate each item regarding Game8.co's Advertisements.
    Amount of Ads
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Placement of Ads
    Timing of Ad Display
    Ad Loading Speed
    Safeness of Ads
    Content of Ads
    ×
    Please rate each item regarding Game8.co's Quality of Articles.
    Amount of information
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Frequency of updates
    Speed of new information
    Accuracy of articles
    Understandibility of articles
    Readability of sentences
    ×
    Please rate each item regarding Game8.co's Usability of the Site.
    Ease of finding information
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Loading Speed
    Use of Color
    Font Size
    Visibility of Images
    Easy to Understand Layout
    ×
    Please rate each item regarding Game8.co's Message Boards, Comments.
    Ease of Writing
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Readability
    Ease in Finding Information
    Comment Quality
    Comment Quantity
    Admin Response
    ×
    Please rate each item regarding Game8.co's Site's new design.
    Please rate our site's new design
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Do you think that the website's design change makes the site easier to use?
    Has the new design made it easier for you to find information on the site?
    Has the new design improved the overall visual appeal of the site?
    How would you rate your overall satisfaction with the new design of the site?
    ×
    How likely are you to recommend Game8 to someone you know?
    Very Unlikely
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    Very Likely
    If you have other opinions regarding potential improvement to the website, please share them with us. We would appreciate your honest opinion.
    Note: This is a free response section, so you can proceed without entering anything.
    Note: Please be sure not to enter any kind of personal information into your response.
    ×
    Thank You
    ×
    Thank you for participating in our survey! Your answers will help us to improve the quality of our website and services.
    We hope you continue to make use of Game8.
    Close
    For other opinions or comments, go here.

    Rankings

    Popular Articles
    Message Board
    • We could not find the message board you were looking for.

    Gaming News

    Tides of Annihilation Gameplay Trailer Deep Dive: Dual Frontline System & More Analyzed

    Tides of Annihilation Gameplay Trailer Deep Dive: Dual Fr...

    Popular Games

    Recommended Games

    All rights reserved

    © 2022 Krafton, Inc. All Rights Reserved. STRIKING DISTANCE STUDIOS and THE CALLISTO PROTOCOL are trademarks or service marks of Striking Distance Studios, Inc. KRAFTON is a registered trademark or service mark of KRAFTON, Inc.

    The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
    The contents we provide on this site were created personally by members of the Game8 editorial department.
    We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.

    The Callisto Protocol Walkthrough & Guides Wiki

    Quick Access
    Guide Index

    Story Walkthrough

    List of Chapters

    List of Characters

    Tips and Tricks

    Skins and Cosmetics

    Game Mechanics and Upgrades

    Weapons and Combat

    System/FAQs

    Bosses and Enemies

    Bosses

    Enemies

    Trophies

    Trophy Guides

    Weapons

    Melee Weapons

    Ranged Weapons

    Characters

    Items

    News and Game Info

    All News

    Other Related Wikis