Muulnera is a 3D singleplayer horror game, featuring gameplay inspired by text-adventure as well as point & click games of the 90s and 2000s. The game is set in Muulnera prime, an old coal mine owned by the successful Muulnera mining company, before the underground complex was shut down for unknown reasons.

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You've recently been ordered by the local court to pay the Muulnera company a large fee for slanderous statements after an independent investigation. The company offered an alternative, instead of paying the large sum up front, you can work in Muulnera prime to repay your debts. Soon you find yourself descending into the dark and maddening depths of Muulnera Prime.

 

You're the only person there working. But you are not alone.