Codex Gamicus

Mundaun is a single-player psychological horror game developed by Hidden Fields and published by MWM Interactive. It was released on Steam for Microsoft Windows on March 16, 2021.

The full wiki of this game can be found here.


The game is a hand-pencilled horror tale set in a dark, secluded valley of the alps. The player can explore various areas full of secrets to discover, survive hostile encounters, drive vehicles, fill their inventory and solve a variety of hand-crafted puzzles.


After learning of his grandfathers mysterious death in a fire, the protagonist travels to Mundaun for the first time since childhood. He will soon discover that something old and diabolical is haunting the remaining inhabitants. The quest to find out the meaning behind these sinister events takes the player on an odyssey up Mundaun mountain: From steep meadows across stony fields and to the snow-covered peak.


  • Immerse yourself in a unique setting: An alpine world where reality and myth intertwine.
  • Experience a unique greyscale aesthetic thanks to hand-pencilled textures.
  • Explore varied and open levels from green meadows to snowy peaks. Beware of the creatures roaming the landscape.
  • Inventory system to keep you focused on collecting, find out the story secrets.
  • Fear resistance factor – A “cause and effect” for the player within the game eg: the stronger the fear the more slowly you move.
  • Solve Puzzles that are integrated into the game world as you make your way up the mountain.
  • Interact with its eccentric inhabitants who even have their own obscure spoken language.
  • Control vehicles such as sleighs and hay loaders.
  • Find out the dark secret behind grandfather's death.


  • Praise the Sun: Find Jeremias's key
  • Grandpa Turismo: Drive the Muvel
  • Hay Fever: Fill the Muvel with hay
  • Figurative: Find the cave in the first area
  • Cargo: Use one of the transport furniculars
  • This Is Heavier Than I Thought: Pick up rifle
  • Operator: Turn on the chair lift
  • Beekeeper
  • Book Club
  • Staying Indefinitely
  • Do Go Chasing Waterfalls
  • Race Winner: Win the sleigh race
  • Cartographer: Draw all the maps
  • Delirium: Drink all of the coffee
  • Going Home
  • A Souvenir
  • Death-defying: Finish the game without dying
  • Kindness to Strangeness: Finish the game without hurting an enemy

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