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Callisto Protocol Healing & Inventory Guide
Yahya Jamshed 3 min read

Callisto Protocol Healing & Inventory Guide

The biophage are brutal and wont hold back, so you're gonna need all the Health and Inventory at your disposal to make it through Black Iron Prison. We have your back with this ultimate guide.

One of the survival horror genre’s key gameplay concepts is healing your character and using everything at your disposal to stay alive, and The Callisto Protocol is no exception. Enemies in The Callisto Protocol will not hesitate to pound you into a bloody mess. Even early on, you’ll meet foes that may swiftly deplete your health, forcing you into a continual fight to keep even a semblance of health so that you don’t die instantaneously. So naturally, you’d like to know how to heal your character.

Key Takeaways

  • Surviving the brutal biophage while managing your inventory space is an essential mechanic of The Callisto Protocol.
  • Players will have to manage their health as they fight the increasingly difficult enemies, heal and do it all over again as they progress through the game.
  • Healing will be crucial to surviving the consistent onslaught of enemies.
  • Both health and inventory space will be small at the start of the game in comparison to what it will be after a few chapters.
  • Players can get the suit to upgrade both health and inventory space.

Let’s start off by explaining how to heal and where to get healing items in The Callisto Protocol

There Are Two Ways of Healing Jacob

Healing in the game involves two main methods: using Health Gel bags and Gel Injectors. Here’s how to utilize both of these methods:

  1. Health Gel Bags:
    • Health Gel bags are spread throughout the game environment and can also drop as loot from defeated enemies.
      After Stomping a dead enemy, a health gel can be dropped along with other items | Image Captured By Us/VeryAliGaming
    • They restore a small amount of health (35 points) when picked up.
    • To use a Health Gel bag, press the corresponding button on your gaming platform (X on PlayStation, A on Xbox, or E on PC).
    • If you are already at full health, you won’t pick up the bag, so you can come back for it later if the area isn’t sealed off.
  2. Gel Injectors:
    • Gel Injectors are another option for healing and can be found in first aid boxes on walls or as random drops in the game world.
      First Aid boxes you can find health injectors in, interact with it to place the injector in your inventory | Image Captured By Us/VeryAliGaming
    • You can store Gel Injectors in your inventory indefinitely as long as you have enough space.
      Be careful where you choose to heal yourself with the injector | Image Captured By Us/VeryAliGaming
    • To use a Gel Injector, press and hold down the corresponding button (D-Pad down or 3 on PC).
    • Be cautious when using a Gel Injector, as it triggers a lengthy animation. If you’re hit by an enemy during this animation, it will be interrupted, and you won’t receive the healing effect. Make sure you’re in a safe area or have eliminated all enemies before using a Gel Injector.

That’s all you need to know about the healing aspect of the game. Simple enough.

Let’s move on to how to upgrade overall health and inventory space in The Callisto Protocol.

How To Upgrade Health And Inventory Space 

There is undoubtedly one thing you will be begging for while you play through the early hours of The Callisto Protocol. That is additional inventory space and more health.

  1. Upgrading Inventory Space and Health:
    • Your inventory capacity and health meter are upgraded simultaneously in the game.
      Inventory space in the beginning of the game | Image Captured By Us/VeryAliGaming
    • To achieve this upgrade, you’ll need to progress through the game’s chapters.
    • The upgrade occurs upon completing the “Habitat” chapter and continuing through to the fifth chapter, “Lost.”
    • This upgrade happens more than halfway through the game, in the fifth chapter, and it’s the only inventory enhancement available.
    • After the upgrade, your inventory space will expand from six to twelve spaces, providing you with more room for items and equipment.
      Upgraded inventory space after getting the survival suit | Image Captured By Us/VeryAliGaming
  2. Managing Your Inventory:
    • Even with the expanded inventory space, it’s crucial to manage your inventory wisely.
    • Always keep at least one healing syringe in your inventory to ensure you have the means to restore health when needed.
    • You can use the remaining inventory space for items like sellable goods and ammunition.

While you can’t further upgrade your health or inventory, you may choose to upgrade your weapons.

That’s all for this Callisto Protocol Ultimate Health and Inventory guide. We hope this helped you during your adventures in the gruesome world of Black Iron Prison. We hope to see you again in the next one.

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