Stranded Items are a set of three very rare items found across the map in Horizon Zero Dawn. All three items are part of an easter egg referencing the upcoming Kojima Productions' PS4 exclusive game Death Stranding. Death Stranding will feature Guerrilla Games' game engine, Decima, which was also used to create Horizon Zero Dawn.
The icon for every stranded item is the silhouette of Kojima Productions' mascot and logo, Ludens. If all three items are obtained, they can be traded to the Mystery Boxes Merchant in Meridian for a Mysterious Box.
There are three items in total.
Stranded FigureThe Stranded Figure collectable can be found in the ELEUTHIA facility, during and after the main quest The Heart of the Nora.
Its description reads: "This mysterious item is valuable only to the most curious merchants. A battered idol of an infant, smelling faintly of decay." It is found directly underneath the first stairwell you step on.
Stranded ShacklesThe Stranded Shackles collectable can be found near the Zero Dawn Alternate Entrance, during and after the main quest Deep Secrets of the Earth.
Its description reads: "This mysterious item is valuable only to the most curious merchants. Shackles made from an unknown, smooth material."
Stranded NecklaceThe Stranded Necklace collectable can be found in The Grave-Hoard.
Its description reads: "This mysterious item is valuable only to the most curious merchants. Six tarnished metal ingots threaded with a plain wire." It is found behind the sign on the left on the dead soldier to the left.