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Monster Underground

Action 4 plays Added Apr 20, 2026
Game ready
Click inside the game to use keyboard controls
Game guide

About Monster Underground

Control a fearsome alien worm as it emerges from the depths to take over the world! Feed on everything in your path, evolve into a legendary creature, and survive relentless attacks from the army in this action-packed survival challenge.

How to play

  • Use arrow keys or WASD to move the monster
  • Use mouse to navigate menus
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