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The Underground

by mythcitygames Adventure · Roguelike · made with Cursor

Explore generated tunnels, open locked doors, and find artifacts before time runs out.

Be the first to rate Online multiplayer 2026 Vibe Coding Game Jam, rank 408 of 945 Plays in your browser
Play now Opens on mcg-urbex.web.app in a new tab. Come back here to rate it.

Checked working on Nov 14

This one isn't listed for phones.

  • 1 / 2 / 3 select flashlight, camera, crowbar
  • R change flashlight brightness
  • N open notebook

Play next

About the game

Each run starts with the clock at 03:00 and ends when it reaches 05:00. Until then, you explore a network of underground tunnels and search for whatever is hidden there.

Procedurally generated tunnels, described by the creator as endless. Locked doors you have to get through. Artifacts hidden out of sight. Other players' clues, shared into your world too. A battery-powered flashlight. A camera for photographing evidence. A crowbar with five pries at the start.

Press R to change how bright the flashlight is. Press N to open the notebook.

mythcitygames made the game after riding subway trains around the world. They had always wondered what lies down the dark tunnels the trains passed, and wanted to find out what's there, such as abandoned stations and old bunkers.

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It ranks #420 of 588 games all-time, going by its jam placement until players rate it. How rankings work

Something wrong with this game?

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How it was made

Source: Vibe Jam 2026 submission form. Evidence: the creator's own account.

Added
Code by AI
Most of it
AI tools
Cursor
Engine
Three.js
Players
Online multiplayer
Jam
2026 Vibe Coding Game Jam, rank 408 of 945
Make one like itCursor game development in short, tested loops

Controls

  • Keyboard
  • 1 / 2 / 3 select flashlight, camera, crowbar
  • R change flashlight brightness
  • N open notebook

Screenshots

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Questions

Can I play The Underground with friends?

Yes. It has online multiplayer, so friends can join from their own computer without being in the same room. It isn't listed for phones, though.

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