There isn't much to say, it isn't even a game, more a script to test the capability of your GPU.
It runs the unreal engine, but in script mode.
When or IF they game comes out another thread skills be created. The game has been stuck in development hell for years now. So this benchmark demo might be all we will ever see.
It install to the steamapps account, and have what looks like a legit Unreal PAK file.
Here is the link to Steam:
https://store.steampowered.com/app/1420640/Boundary_Benchmark/#5 perhaps

5. Add some information about the game