Game Introduction

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The Callisto Protocol


In this narrative-driven, a third-person survival horror game set 300 years in the future, the player will take on the role of Jacob Lee – a victim of fate thrown into Black Iron Prison, a maximum-security penitentiary located on Jupiter's moon, Callisto. Soon after his arrival, Black Iron descends into chaos as inmates begin transforming into terrifying creatures.

Jacob must confront these grotesque foes using a unique arsenal of weapons and abilities as he searches for a way to escape. As he navigates the darkness and desolation of Callisto, he also grapples with the unsettling questions at the back of his mind: What mystery is unfolding at Black Iron, and what role is he really playing in it?


Who are the Characters in the game?


In this story-driven single-player game, players will take on the role of Jacob Lee, a former cargo pilot turned inmate at Black Iron Prison. He must work with Dani Nakamura, a fellow inmate to unravel the dark mysteries at the heart of the powerful United Jupiter Company.





Who is the United Jupiter Company?

They are the principal operator of the Black Iron Prison colony on Callisto. The Company’s headquarters is on Earth in the city of Chicago. The company’s main rival is the Commonality.


Is the game difficult to play?

There are tutorials for all game systems in the main menu for players to have a guide on how things work in the game. Since it’s a survival horror game, players will face challenges to survive but players are given the option to change the game’s difficulty. The game features three difficulty settings (easy, medium, and hard) that can be changed at any time during the game in the settings menu.


How does the combat work?



The Callisto Protocol features a brutal combat system that blends melee and shooting, with a unique gravity weapon called the GRP (or "Grip") to move between the two. A defensive right stick lets players dodge and block incoming attacks. Learning the dodge and block mechanics will be helpful as they‘re critical to survival. The combat is up close and personal. Jacob’s melee attacks and defenses are heavy. Sometimes this means letting creatures get closer than

you might like.


What are the weapons in the game?

There are a total of nine weapons in The Callisto Protocol for you to find on your journey through Black Iron Prison. The game has a number of ranged weapons to collect in addition to the stun baton and GRP. All weapons have upgradeable skill trees, so players can invest in their favorite weapons to suit their playstyle.


What is GRP?

The GRP, or "Gravity Restraint Projector" can be used to control objects in the game. Pull an enemy close for a melee blow. Knock an enemy across the room and shoot their legs. Pulling enemies towards you is critical as some enemies run and hide or can inflict damage from afar. Mastering melee combat, dodging, and using the GRP in tandem is the key to survival.


How do I know if the GRP is recharged?

Players must collect batteries to charge the GRP or wait for it to recharge after heavy use. The white bar on Jacob's neck indicates the amount of GRP power available. Simply keeping a GRP power cell in your inventory will cause it to recharge automatically when it runs out. Otherwise, the GRP will recharge slowly over time.


Who are the enemies in the game?

The primary enemies are called “Biophages”. They are humans mutated from the Biophage Pathogen.



How can I check my character’s health in the game?


Prisoners at Black Iron Prison have an implanted device on their neck called a "CORE" - it serves as a health bar for players in the game, but also lets Jacob communicate with other characters and tap into the secrets of Black Iron Prison


How can I heal in the game?

There are 2 ways to heal in the game. You can either use a “Heal Injector” or a “Health Gel”. Both of these can be found throughout each area of The Callisto Protocol. Be on the lookout for these items whenever you reach a new area in the game as healing items are very helpful after facing enemies. 


What is the default key binds for Gamepad?

What is the default key binds for the keyboard? 




Where can I play The Callisto Protocol? 

The game is playable on multiple platforms: PC, PS5, PS4, XBOX Series X/S, and XBOX One. 


What are the minimum and recommended requirements to play The Callisto Protocol on PC?

For system requirements in PC:



Requires a 64-bit processor and operating system

OS: Windows 10/11

Processor: Intel® Core™ i5-8400 or AMD Ryzen™ 5 2600

Memory: 8 GB RAM

Graphics: NVIDIA® GeForce® GTX 1060 or AMD Radeon™ RX 580

DirectX: Version 11

Storage: 75 GB available space




Requires a 64-bit processor and operating system

OS: Windows 10/11

Processor: Intel® Core™ i7-8700 or AMD Ryzen™ 5 3600

Memory: 16 GB RAM

Graphics: NVIDIA® GeForce® GTX 1070 or AMD Radeon™ RX 5700

DirectX: Version 12

Storage: 75 GB available space

Additional Notes: SSD recommended

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