ARC Raiders Stable Housing: How to Open the Security Bridge Safe

You need Stella Montis access and a safe pocket for the Project Heartwood Blueprints.

• Complete the whole quest in one round.
• Use a light or empty loadout if you want the surrender option after securing the Blueprints.
• Expect Shredders, Pop Rollers and rival raiders around the Lobby and Security Bridge.
• Move quietly where possible because interior noise can draw attention.

The Security Bridge spans the Lobby in northern Stella Montis.

1. Reach the Lobby complex in the north or northeast of the map.
2. Change map layers if the bridge is not visible on your current floor view.
3. Use stairs or a zipline to reach the elevated bridge level.
4. Enter from a side route rather than crossing the busiest part of the Lobby floor when possible.

Snap and Salvage and On Deaf Ears also route through this area. Switching the Supply is another quest where changing map layers helps reveal the target.

The safe is on floor 3 in the control room opposite the stairwell, on a desk toward the back-right side.

1. Climb to floor 3 and use the painted floor number as your orientation cue.
2. Enter the room opposite the stairwell.
3. Find the safe on the desk in the back-right area.
4. Interact with the safe to begin the access sequence.

The floor 4 card printer is supposed to malfunction, so do not restart the quest when it fails.

1. Go up one floor to the control room beside the stairwell.
2. Find the small printer on the desk with the monitors.
3. Start the key-print interaction and let the sequence finish.
4. Return downstairs after Tian Wen tells you to find another way in.

The security warning here is part of the sequence; keep moving instead of abandoning the run. Deciphering the Data has a similar scripted-failure moment.

The notice board on floor 3 is the alternate access method that opens the safe.

1. Return to floor 3 after the printer fails.
2. Enter the control-room area and look to the right side of the entrance for the notice board.
3. Read the notice to register the override.
4. Go back to the safe and open it for the Project Heartwood Blueprints.
5. Safe pocket the Blueprints immediately.

Leave functioning androids alone unless they are actively blocking the run.

Avoid unnecessary fights with androids because they do not help with the Security Bridge objective and can add risk to the route. For an android-focused route, see In My Image.

Once the Blueprints are protected, either extract from the nearby subway route or surrender if you deployed empty.

1. Leave the Security Bridge and go down to the bottom floor.
2. Exit the main door and head north toward the subway stairs for extraction.
3. Use Surrender instead only if the Blueprints are safe-pocketed and you brought nothing else you need to keep.

If the after-action report shows six of seven steps, return to Tian Wen with the Blueprints before assuming the quest failed.

Stable Housing rewards mobility and utility items, including a Snap Hook.

Completing the quest also advances the Project Heartwood Codex thread.

A Rising Tide unlocks after Stable Housing.

This is a cross-trader handoff: Stable Housing is Tian Wen's quest, while A Rising Tide belongs to Celeste, so the gate is easy to miss if you only scan one trader's list.

Project Heartwood continues across three quests: Stable Housing recovers the Blueprints, A Rising Tide follows the foreman's trail, and A Dead End reveals what happened to the project.