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The Decaying Colony & Brute Encounter — The Callisto Protocol Walkthrough
The Callisto Protocol

The Decaying Colony & Brute Encounter — The Callisto Protocol Walkthrough

Follow our detailed walkthrough for The Callisto Protocol's 'The Decaying Colony' and 'Brute Encounter' sections. Learn strategies, find collectibles, and unlock achievements.

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The Decaying Colony & Brute Encounter — The Callisto Protocol Walkthrough

Follow our detailed walkthrough for The Callisto Protocol's 'The Decaying Colony' and 'Brute Encounter' sections. Learn strategies, find collectibles, and unlock achievements.

Walkthrough
  1. 1
    Begin by pausing the game and entering Photo Mode to take a picture for the 'Mugshot' achievement.
  2. 2
    Proceed down the hallway and enter the first locker on the left to find a Bios (1/43).
  3. 3
    Continue to the cargo bay, learning to vault over boxes with !cn_LSu!cn_A and mantle using the same buttons.
  4. 4
    Approach the flaming hole in the ship to trigger the 'The Outer Way' achievement.
  5. 5
    Crouch using !cn_B, shimmy through a tight space with !cn_LSu, and sprint with !cn_LB through the next door.
  6. 6
    After a cut-scene, hold forward on the left thumbstick to climb back into the captain's chair to end Chapter 1.
  7. 7
    In Chapter 2, explore your cell during the dream sequence until you find a music box.
  8. 8
    Exit your cell and head right to meet Elias, who will give you a shiv, unlocking the 'Desperate Times' achievement.
  9. 9
    Use the shiv on the control panel to open the door, then vault over boxes and shimmy through.
  10. 10
    In the next room, learn combat mechanics: hold !cn_LSl or !cn_LSr to dodge before an attack, and use !cn_RT to attack after the enemy stumbles.
  11. 11
    Defeat the two inmates and the first Biophage.
  12. 12
    Aim to dismember both arms of an enemy for the 'Flesh Wound' achievement.
  13. 13
    Unlock Elias' cell using the computer console.
  14. 14
    Follow Elias' directions to the elevator, take it down a level, and leave the lift.
  15. 15
    Crouch under debris and prepare to fight another Biophage.
  16. 16
    Practice perfect dodges by flicking the left !cn_LS left or right as an opponent winds up their attack. Successfully performing 5 perfect dodges unlocks the 'Float Like A Butterfly' achievement.
  17. 17
    After the fight, find a glowing green wall storage unit to receive a health injector and trigger a tutorial.
Tips
  • The game is significantly easier after recent patches, making Maximum Security difficulty more manageable.
  • This walkthrough aims for all achievements in one playthrough on Maximum Security.
  • Pay close attention to enemy body language to time dodges effectively. Alternating dodges is key.
  • Mash !cn_Y to escape grabs and stomp on defeated enemies with !cn_Y.
  • The 'Float Like A Butterfly' achievement can be buggy; try to achieve it early in the chapter.
  • 'Mugshot' Achievement
  • 'The Outer Way' Achievement
  • 'Desperate Times' Achievement
  • 'Flesh Wound' Achievement
  • 'Float Like A Butterfly' Achievement
  • Bios (1/43)
  • Health Injector

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