Hideo Kojima’s new game, Death Stranding, is being made with the same Decima engine that Horizon was made on, and the celebrate this fact, there are a few Easter Egg collectibles scattered around the world, three in total.
Stranded Necklace - In the entrance to the Grave-Hoard, before you zipline into the bunker itself. It’s around the back of the tank to the left on a whithered corpse.
Stranded Shackles - Located in the Zero Dawn bunker underneath Sunfall. After the room where you watch the briefing by Elizabet, head through to the next room then hang left. Go through the door at the end of the small office to the right then turn left, the shackles will be on the floor at the far end of this room.
Stranded Figure - This is located within the All-Mother bunker. After you first enter the bunker, head down the stairs then turn about, the figure will be to the left of the staircase.