>>712557425
Even better, it's a map from Etrian Odyssey, specifically the final stratum where you realize it was never a fantasy world, but our world the entire time, and that while you were going down a labyrinth, at the bottom of it you see the sky.
https://youtu.be/FKcxyCTDW1A
https://youtu.be/Nsbdw_k2vYQ