Skip to content
Cistern Area
Routine

Cistern Area

Follow this guide to navigate Routine's Cistern Area, solve chemical puzzles, and upgrade your Interface Module to progress through Chapter 5: Endure.

By ···10 min read·Multi-source verified
1 reading this guide  

Follow this guide to navigate Routine's Cistern Area, solve chemical puzzles, and upgrade your Interface Module to progress through Chapter 5: Endure.

Walkthrough
  1. 1
    After reaching the surface and entering the bunker, follow the path to another bunker.
  2. 2
    Press the airlock button and use your Interface Module to scan the security monitor.
  3. 3
    Enter the elevator and go to the botany lab.
  4. 4
    Use your security access to enter the Main Wing.
  5. 5
    Go to Laboratory 01, use your Interface Module to unlock it, and listen to the voice recording and read emails/diary.
  6. 6
    Crawl through the vent behind the terminal.
  7. 7
    Follow the vent to a water cistern area and save at the Wireless Access Point.
  8. 8
    Crawl under the gap in the door to the right of the Access Point.
  9. 9
    Note the name and number on the keycard on the table (e.g., Maria's keycard, code 9785).
  10. 10
    Go to the terminal marked Maria's and enter the code. Press EXE.
  11. 11
    Follow the cables through the now-open door.
  12. 12
    Go past the Lab 02 room into the dark hallway and crawl into the vent at the end.
  13. 13
    Crawl through the vent and exit into the chemical lab. Save at the access point.
  14. 14
    Mix a disinfectant using the terminal: Base: Isopropyl Alcohol, Active 01: Copper Ions, Active 02: Hydrogen Peroxide, Stabilizer: EDTA. Press TEST.
  15. 15
    Backtrack to the lobby area where you first entered.
  16. 16
    Enter the decontamination chamber.
  17. 17
    Look at the keycard on the floor beside the body and note the ID number (e.g., William's keycard, code 4619).
  18. 18
    Return to the area with the Access Override terminal (where Maria's terminal was).
  19. 19
    Enter William's code into the terminal to open the gate.
  20. 20
    Climb down the ladder, follow the hallway, and climb down a second ladder.
  21. 21
    Follow the red pipes and objects on the ceiling to navigate the dark tunnels.
  22. 22
    Reach the crank wheel and turn it.
  23. 23
    Make your way back to the ladder, climb up, and run to the cafeteria area.
  24. 24
    Crawl under the door to reach the cistern. Save again.
  25. 25
    Climb down the ladder into the drained cistern.
  26. 26
    Follow the tunnel and climb up another ladder.
  27. 27
    Crawl through the vent door into the office. Save at the access point.
  28. 28
    Enter William's code (e.g., 4619) into the terminal.
  29. 29
    On the SECURITY tab, upgrade your Interface Module by scanning the screen.
  30. 30
    Make your way back to the lobby, get in the elevator, and use the airlock to return to the Moon's surface.
  31. 31
    Get back to the other bunker, use the airlock to re-enter the building, transitioning to Chapter 6.
Tips
  • The entity will be roaming and invisible after you look at Maria's keycard. Use your Interface Module to track it.
  • Codes for terminals may differ per player; always check the keycard or your saved notes.
  • Follow the red pipes and objects on the ceiling to navigate the dark tunnels.
  • Save frequently at Wireless Access Points.
  • Chapter 05 Achievement: Reach Chapter 05
  • Disinfectant Compiler Achievement: Complete the El.9 Solution
  • Interface Module Upgrade

100% Human-Written. AI Fact-Checked. Community Verified. Learn how AntMag verifies content