Start with the supported answer

  • All Blackstone Fragments (also tracked on the regional Map Completion screen as Blackstone Shards) in Phantom Blade Zero are Key Progression Materials used to permanently increase Soul's offensive power and unlock advanced combat skills. — All Blackstone Fragments | Phantom Blade Zero(Fextralife Wiki)
  • effectively two regions stacked together but the map progress tracker counts them as one. The southern part of Pangzhen is the 4th area you visit in the story. — Phantom Blade Zero Pangzhen Collectible Locations
  • From the previous collectible, follow the main path until you reach the cave and instead of running along the wall, drop down and it’ll be next to the enemy. — Phantom Blade Zero Crimson Forest Collectible Locations

Sources: All Blackstone Fragments | Phantom Blade Zero(Fextralife Wiki) · Phantom Blade Zero Pangzhen Collectible Locations · Phantom Blade Zero Crimson Forest Collectible Locations

Detailed checks from the original evidence

  • Northeast of the bell through the boss arena, inside the large building on the opposite side from the Memory Flower. — Phantom Blade Zero Meigu Lake Collectible Locations
  • From the Outpost Bell, head straight ahead and then go up the stairs. You’ll find yourself in a small courtyard where you’ll find a body with a Cell Key on it. — Phantom Blade Zero Weeping Creek Valley Collectible Locations
  • You don’t need 100% collectibles for trophies — Phantom Blade Zero Trophy Guide & Roadmap
  • Collecting 4 Blackstone Fragments automatically fuses them into a whole Blackstone, permanently increasing your base Attack Power and Guard Break by +10%. — All Blackstone Fragments | Phantom Blade Zero(Fextralife Wiki)
  • #36 – Blackstone Fragment / Crimson Forest Secret Chamber Crank — Phantom Blade Zero Crimson Forest Collectible Locations
  • Go back to the gate of the Outpost where you first entered and go down the slope into a small cave. You can use the Cell Key to unlock the gate and find the collectible. — Phantom Blade Zero Weeping Creek Valley Collectible Locations
  • become stronger by finding collectibles that open up new skills for purchase (Sha-Chi Amber, Blackstones, and Memory Flowers) — Phantom Blade Zero Trophy Guide & Roadmap

Sources: All Blackstone Fragments | Phantom Blade Zero(Fextralife Wiki) · Phantom Blade Zero Pangzhen Collectible Locations · Phantom Blade Zero Crimson Forest Collectible Locations · Phantom Blade Zero Meigu Lake Collectible Locations · Phantom Blade Zero Weeping Creek Valley Collectible Locations · Phantom Blade Zero Trophy Guide & Roadmap

Scope and unresolved details

  • This page reflects launch-period sources checked on 30 October 2026. A later patch can change exact values, menus or quest availability.
A large spherical weapon fills the foreground of a red-curtained room in Phantom Blade Zero.
Steam store screenshot · visual context only.

Sources & scope