Maguntsche

Maguntsche: Chapter One is a game played by Markiplier.

Game Information
Taking place in Macungie, Pennslyvania on Halloween night, the town mysteriously falls into a great darkness. No noise, no lights, and no people. Trapped inside the house of a local residence, you must escape before you're taken by The Maguntsche Demon.

The player is stuck in a phenomenon known as The Loop, where two universes are present across a single plane, Collecting artifacts will transport the player into the loop, but will break the connection between realities once all are collect. It is your job to collect them if you have any hopes of getting home.

Episode

 * 3 SCARY GAMES #14