Nier: Automata 'secret church' mystery leads to mod tools and memes

For several weeks, a Nier: Automata player has caused intrigue and excitement by posting mysterious images and videos from an area no one had seen before. Was it a secret area? An unfinished area? A hoax? Viral marketing? A mod? If it was a mod, it was far more complex than any so far. Turns out, that's because a group of fans have secretly been making their own mod tools, and plan to release them soon. In the meantime, I've enjoyed pranksters memeing on the mystery by creating secret churches in other games, including Half-Life 2 and Super Mario 64.