PULSE NEWS · CULTURE · MORE STORIES WORTH YOUR TIME
Language:
Photo storyGamersky / referenced guides1 min read

Where to find the outpost cell key in Phantom Blade Zero

The cell outside the outpost needs a key, but it is a different obstacle from the bridge blocked by guards. Start by checking the nearby buildings rather than treating both barriers as the same problem.

By Pulse EditorialOctober 30, 2026
Map near the outpost; the red arrow points towards the building and the area behind it.
Map from the Gamersky guide. A route overview, not a screenshot of every step.

The Gamersky guide gives the broad route: climb the steps from the outpost bell, turn right and go behind the house to find the cell key (牢门钥匙).Gamersky guide ↗

Names here follow the cited guide or describe landmarks; they have not been independently checked against the English in-game interface.

Follow the route through the building

The GamesRadar+ key guide adds the indoor steps:GamesRadar+ key guide ↗

  1. Go through the outpost, passing the forge and the bell. Climb the steps, pass through the wooden doorway and find the shrine glowing red.
  2. Just before the shrine, take the uphill path to the right to reach the wooden shack.
  3. Enter the main room, turn right, climb through the window and go up the steps outside.
  4. Pick up the key beside the body, then return to the cell.
The uphill path to the right before the red shrine, towards the shack.
S-GAME image via GamesRadar+, retaining the guide’s route marker.
The shack window and steps outside, with the route marked.
S-GAME image via GamesRadar+, showing the window route.

Unlock the cell and collect the reward

Back at the small prison outside the outpost, interact with the door to use the key. The Chinese and English sources identify the reward as 黑石碎片, called a Blackstone Fragment in the English guide.

This article covers the cell key and its reward. If a guard on the bridge is blocking your way, you need to check the progression conditions for a different quest.

Back to section
GamingStarting Phantom Blade Zero: deciding what to do next in combat and explorationA tough enemy, an overhead item and a locked door do not necessarily need the same solution. Before retracing the map or replacing your equipment, work out whether the problem is timing, a missing tool or quest progress.