This deep dive from Polygon explores what happened when Niantic, the creators of Pokémon Go, teamed up with the theater company Punchdrunk, to develop an in-person game that blended tech and the surrounding environment. But the experience, which involved having players interact with actors on the street and looking for hidden objects, never came to fruition due to concerns about safety and costs:
The studios behind Pokémon Go and Sleep No More spent years trying to design a hybrid game and theatrical show, codenamed Hamlet, before ultimately stopping production on the project.