Sure! Here's an example of a simple 3D horror game implemented as a single HTML file using JavaScript. Please note that this is just a basic demonstration and the game can be further expanded upon.
Use the arrow keys to move
Look for clues and escape the horror!
In this game, the player can control their character's movement using the arrow keys on their smartphone. The game container provides instructions and the game logic is handled by the `movePlayer()` function, which you can expand upon to create your horror game mechanics. Feel free to add pictograms or customize the visuals according to your game's theme.