Community forum
Skip to content
LINK GUIDEYOUR GAME. YOUR WAY.DE
Game help · Tips & secrets

Immersive Sim · First release 2023

System Shock (2023 Remake)

Main route through the decks, junction boxes, cyberspace, fixed and variable codes, and both documented versions of the finale.

WindowsPlayStation 4PlayStation 5Xbox OneXbox Series X/SNintendo SwitchNintendo Switch 2

Guide chapters
11
Puzzle and code entries
16
What this guide covers

Main route through the decks, junction boxes, cyberspace, fixed and variable codes, and both documented versions of the finale. Nightdive remake, including the revised finale from patch 1.2. The 1994 original has its own progression.

Story routes, decisions and endings may contain spoilers. You can show or hide marked sections.

Search for puzzles, codes and locations across games

Check your edition

Editions & platforms

EditionPlatformDifferences & notes
2023 RemakeWindows, PlayStation 4, PlayStation 5, Xbox One, Xbox Series X/S, Nintendo Switch, Nintendo Switch 2Nightdive remake, including the revised finale from patch 1.2. The 1994 original has its own progression.

Before starting and on the station

The Combat, Mission, Cyberspace, and Puzzle settings work independently. Mission 3 imposes a ten-hour limit on the campaign. Mission 1 uses fixed codes for the laser override, robot production, and Executive crawlway. On Mission 2 or 3, consult the clue in your own save for those locks.

Keep six slots in your notes for Medical, Research, Maintenance, Storage, Flight Deck, and Executive. Photograph the red monitor as soon as you destroy the CPU nodes on each of those decks. Later decks also have nodes, but they add no reactor digits.

Cameras and CPU nodes contribute to the security level of their deck. When a door refuses to open, check for an access card, a security threshold, a cyberspace lock, or a junction box. Mark blocked doors and useful stations on the map. Reverse cyborg conversion in an area before a long excursion if you intend to use its restoration facility.

Deck 1 · Medical

Collect the equipment and access credential in the starting area. The text log at reception explains the first door code. Explore the quadrants and disable cameras to bring security down for the elevator.

The terminal that grants early access to the Mag-Pulse is optional. The terminal for the CPU room opens the force door to your main objective. Destroy all four Medical nodes, copy digit 1 from the monitor, and make sure security is at 0% before using the elevator. The 705 armory is a detour for ammunition and equipment.

Deck 2 · Research

Restore the power in Alpha Quadrant. Pick up the SCI card and use it to reach the library. Clear its cyberspace through to the core, then read the laser override code from the library display.

Isotope X-22 is behind a force field in Gamma Quadrant. If the irradiated approach is a problem, clear the second Research cyberspace to open up the area. Destroy the CPU nodes too and record digit 2. Take the isotope and override code down to the Reactor. Leave the Research firing controls alone until the preparations are complete.

Reactor · Stop the mining laser

Activate radiation shielding in Radiation Shield Controls first. Insert X-22 and pull the lever. Then go to Safety Override, enter the library code, and operate its lever. The two controls have separate jobs.

Return to Research and fire the mining laser from the central control room. The active shield intercepts the beam and destroys the laser. The elevators now take you through Maintenance towards Executive. Reactor self-destruct belongs after the antenna mission.

Deck 3 · Maintenance

Maintenance connects several decks. Pick up the Laser Rapier and Detox patches if you encounter them. The computer area needs low security and a cyberspace unlock. If a section is blocked on your early visit, advance the story and return after the failed attempt at the grove master control.

After the fault is reported, use the diagnostic terminal in the central area. Save an Interface Demodulator for relay 428. Enter digit 3 from the CPU room in your notes before leaving the deck for good. Digit 3 is the third digit of the reactor code, whereas 428 identifies the faulty relay.

Decks 4 and 5 · Storage and Flight Deck

Bring at least four units of Z-44 Plastique from Storage. Storage 1 is a good place to start. Unlock Storage Room 9 with 838 for the Enviro-Pack, which helps in Beta Grove. Copy digit 4 after destroying the Storage nodes. The ramp over the minefield is an optional jump using Turbo-Motion Boots V1.

On Flight Deck, solve the junction box for the energy bridge if you need that crossing. Destroy the deck's CPU nodes for digit 5. Make a note of the signs to the escape pods. You will need them after the antennas and reactor. The route onward to Executive goes through Maintenance.

Deck 6 · Executive and the groves

Open tram access to Alpha, Delta, and Beta. Executive cyberspace can unlock Beta Transit. A switch in Diego's office provides an alternative. Disable the safety interlocks at all three destinations. Turn on the Enviro-Pack before entering Beta and have healing and Detox ready.

Read the crawlway code from the monitors by the Maintenance elevator. On Mission 1 it is 711. Past the crawlway are the Executive nodes for digit 6, the encounter with Diego, and the master control. The first attempt at the master control sends you back to Maintenance to repair the relay. After the repair, return to enable the control, then jettison Beta Grove using the separate switch near the tram. The Engineering elevator is close to the master control.

Deck 7 · Systems Engineering

Bring four Z-44 charges and clear Engineering cyberspace at its terminal. Destroy the cores to open all four antenna routes. Watch the local security level. Cameras and CPU nodes help open the shortcut in Gamma.

Plant one charge directly on the antenna in each quadrant. Check the way out before placing it. After destroying all four antennas, return to the Reactor. The endgame route subsequently takes you back through Engineering to the Security elevator. The Gamma shortcut below 18% security can bypass the irradiated detour.

Reactor · Self-destruct and the escape attempt

After taking out the antennas, bring the six-digit code to the Reactor Core. Assemble it strictly in deck order from 1 to 6. Shut off the core force field, ride the gravity lift to the keypad, enter the code, and pull the activation lever on the opposite side.

On Flight Deck, 001 opens the escape pod area. The escape attempt points you towards the Bridge as your next objective. Take the Security elevator through Engineering and expect stronger enemies on the way back.

Decks 8 and 9 · Security and Bridge

Clear Security through the second encounter with Edward Diego. Use hard cover against ranged attacks and keep your distance when he advances. A killing blow with the Laser Rapier unlocks the associated trophy. Stock healing, ammunition, and energy before proceeding to the Bridge.

On the Bridge, use the designated switch to purge radiation in the central area. Solve the three junction boxes controlling the force doors to the computer area. Take the Isolinear Chipset from the Cortex Reaver and insert it in the pedestal. Clear the last resistance on the way to the cyberspace terminal. The finale uses a character moving on foot instead of the free-flight controls.

Finale · SHODAN and failure endings

Story details & possible consequences

In the revised finale introduced in version 1.2, break the crystals on the paths and fight cyber enemies until SHODAN starts calling in strikes. Draw a targeted strike beneath the floating rings at the ends of the red paths. Step out once the impact point is set. The energized paths unlock an attack against SHODAN at the central platform. Repeat on three islands. At the end, take the last weapon and shoot the orbs until they turn blue.

In the original version 1.0 remake finale, use each island's hexagonal platform, shoot SHODAN's core until it stops reacting to hits, and step back onto the platform. Do that on all three islands. The redesigned encounter adds the strikes and the final weapon sequence.

You can trigger the earliest failure by firing the laser at Earth before activating the radiation shield. Keep a separate save before pressing the button if you want to see that sequence and continue afterwards.

Starting door · 451

Medical · Healing Suites

Check the reception desk for a text log.

Show solution

  1. Step 1

    Read New Code if you want to collect the clue.

  2. Step 2

    Enter 451 at the first keypad to enter the station.

Armory · 705

Medical · Gamma

The Many Paths log is in the northern Beta corridor.

Show solution

  1. Step 1

    Find the audio log on the terminal desk in Beta Quadrant.

  2. Step 2

    Open the Gamma Quadrant armory with 705.

Isotope X-22 and the radiation shield

Research · Gamma / Reactor · Radiation Shield Controls

The button to lower the force field is inside the isotope room.

Show solution

  1. Step 1

    Use the switch by the force field and collect X-22.

  2. Step 2

    Insert it at the Reactor's Radiation Shield Controls.

  3. Step 3

    Pull the shield lever and check its status before firing the laser.

Laser override · 199 or save-specific code

Research · Library / Reactor · Safety Override

On Mission 2 and 3, read the library display after clearing cyberspace.

Show solution

  1. Step 1

    Take the SCI card to the library.

  2. Step 2

    Destroy the cyberspace core and record the three-digit display. Mission 1 uses 199.

  3. Step 3

    Enter that number at Safety Override on Reactor and throw the lever.

  4. Step 4

    Fire from Research only after activating the radiation shield.

Robot production · 623 or save-specific code

Research · Delta and Robot Maintenance

Look for Robot Production in a vent-accessible room overlooking the Gamma radiation trench.

Show solution

  1. Step 1

    Read the number in the text log. It is 623 on Mission 1.

  2. Step 2

    Use the code at Robot Maintenance and shut down production to limit reinforcements in the area.

Junction box · Connect the red squares

Citadel · Multiple decks

Trace backwards from the target if the source side is crowded.

Show solution

  1. Step 1

    Identify both square red terminals. Keep the path clear of round red points.

  2. Step 2

    Rotate wire segments in quarter turns. Commit first where the route has few options.

  3. Step 3

    Adjust blue rotators before fine-tuning their neighbors, since they turn several pieces together.

  4. Step 4

    Trace the continuous path from source to target. A Logic Probe can solve one junction box instantly and is consumed.

Junction box · Set voltage inside the blue band

Citadel · Multiple decks

Plugs can deliver either one or two power units.

Show solution

  1. Step 1

    Check the meter and its marked target band.

  2. Step 2

    Connect a single lead first and trace its output through the dials to the meter.

  3. Step 3

    Turn dials to redirect power. Add inputs or exchange high-power and low-power plugs until the reading reaches the target band.

  4. Step 4

    If the box stays open, check unpowered branches and switch positions. The box closes when solved.

Storage Room 9 · 838 and the Enviro-Pack

Storage · Room 9

Stashed Pack and Enviro-Packs provide the outer digits.

Show solution

  1. Step 1

    Enter 838 and take the Enviro-Pack V1.

  2. Step 2

    If the route is still blocked, lower Storage security below 20%.

  3. Step 3

    Activate the pack before your Beta Grove excursion.

Executive crawlway · 711 or save-specific code

Executive · Maintenance elevator / southeast entrance

Check the monitors near the elevator for the combination.

Show solution

  1. Step 1

    Record the current code at the screens by the Maintenance elevator. Mission 1 uses 711.

  2. Step 2

    Enter that code at the keypad to the southeast crawlway.

  3. Step 3

    Use the opened route to reach the CPU nodes and master control beyond Diego.

Alpha, Delta, and Beta · Safety interlocks

Executive · Three trams

Use the status display to identify any missing grove.

Show solution

  1. Step 1

    Alpha: Lower local security below 20% if you cannot reach the switch control. Follow the crossing to Safety Interlocks and use the wall panel.

  2. Step 2

    Delta: Lower local security below 30% if the lift control is blocked. Use the lift and bridge controls on the way to the wall panel.

  3. Step 3

    Beta: Activate the Enviro-Pack. Take the short route down to Safety Interlocks. Press the switch and return to the tram promptly.

  4. Step 4

    Check all three entries and then use the master control in Executive.

Repair relay 428

Maintenance · Diagnostics / Beta and Delta

The fault after using Executive's master control starts this section.

Show solution

  1. Step 1

    Read the diagnostics and enter 428 at the relay analyzer.

  2. Step 2

    Get a spare Interface Demodulator. One is above the gravity lift in Beta Maintenance.

  3. Step 3

    Go to Delta Maintenance and replace the failed component at the marked relay.

  4. Step 4

    Return to Executive, enable the master control again, and use the Beta Jettison switch in the control room beside the tram.

Delta Grove chess · En Passant

Delta Grove · Holographic chessboard

Green is your side. The starting position can vary.

Show solution

  1. Step 1

    Use the raised control platform behind the green pieces and save before moving.

  2. Step 2

    If you use an analysis tool, recreate the actual position with green as White and red as Black. Check board orientation, both kings, and the pawn direction.

  3. Step 3

    Play the suggested move in the game, then enter red's reply in the analysis. Repeat until you win.

  4. Step 4

    Enter the secret room that opens and pick up the inventory upgrade.

Four antennas and four Z-44 charges

Systems Engineering · Alpha, Beta, Gamma, Delta

Engineering cyberspace controls access to the antenna rooms.

Show solution

  1. Step 1

    Bring four charges from Storage.

  2. Step 2

    Destroy the cyberspace cores for all four access routes.

  3. Step 3

    Use one Z-44 charge at the marked spot on each antenna. Move to cover immediately.

  4. Step 4

    Check the mission status before returning to the Reactor.

Reactor code · Six randomized digits

Decks 1–6 / Reactor Core

Order the digits by deck number.

Show solution

  1. Step 1

    Destroy the CPU nodes on Medical, Research, Maintenance, Storage, Flight Deck, and Executive. Read the red display in each node room.

  2. Step 2

    Assemble the digits in that order, keeping any leading 0.

  3. Step 3

    After the antenna mission, lower the force field in the Reactor Core, ride up to the keypad, and enter the code.

  4. Step 4

    Pull the activation lever opposite the keypad.

Escape pods · 001

Flight Deck · Life Pods

The message after the antenna mission gives the code with both leading zeroes.

Show solution

  1. Step 1

    After the antennas, activate Reactor self-destruct.

  2. Step 2

    Open the Flight Deck escape pod access with 001.

  3. Step 3

    Attempt to launch the pod, then continue to the Bridge through Engineering and Security.

Bridge · Isolinear Chipset

Bridge · Computer area

Three junction boxes control the force doors in front of the computer pedestal.

Show solution

  1. Step 1

    Lower all three force doors using their junction boxes.

  2. Step 2

    Defeat the Cortex Reaver and collect its Isolinear Chipset.

  3. Step 3

    Insert the chip into the computer-area pedestal and fight through to the final cyberspace connection.

System Shock (2023 Remake)

Your checklist

0 / 27 guide tasks completed

Ticks are saved on this device for each game and carry over when you change language. The counter measures guide tasks and does not alter your game save.

Sources & editorial date

Independently written game guidance. The following sources support quest routes, mechanics and edition notes. Editorial date: 12 November 2026.

In-game names may differ between language versions. Report a correction.

Keep exploring

More guides from this series

Games & expansions →

Game help

How do I get the inventory upgrade from Delta Grove’s chessboard?2023 remake · Executive Deck

Beating the orange pieces opens the room containing an inventory upgrade.

  1. Take the tram from the Executive Deck to Delta Grove. Save before your first move because the starting position can vary.
  2. Play green and checkmate the orange king. The achievement is named En Passant, and an en passant capture is optional.
  3. Enter the room that opens and pick up the Micro Pocket Dimension Ware.
Sources
Where do I find the six self-destruct digits?System Shock (2023) · Citadel Station · Spoilers

The code varies by playthrough. Each of the first six decks supplies one digit.

  1. Destroy the computer nodes on each deck and immediately write down the digit on the screen nearby.
  2. Use deck order. Medical, Research, Maintenance, Storage, Flight Deck, Executive.
  3. Wear Environmental Protection Pack V2 in the reactor area. Turn off the force fields in the north control room and take the energy lift to the keypad. Enter your six-digit code.
Sources

Ask K.A.I. a question about your game.