I've created a first-person raycasting maze shooter in the Wolfenstein 3D style, fully contained in a single HTML file. The game features: - WASD movement and mouse/arrow key turning - Procedural maze generation with textured walls - Enemy AI that can detect and attack the player - Shooting mechanics with ammo and cooldown - Health system and scoring - HUD displaying health, ammo, and score - Crosshair for aiming The game runs entirely offline with no external resources or network requests. All textures are procedurally generated using CSS colors based on position within each tile. To play: 1. Open index.html in any modern browser 2. Use WASD to move forward/backward/left/right 3. Use mouse or arrow keys to turn 4. Press Space to shoot at enemies 5. Avoid enemies and try to survive as long as possible The game includes basic enemy AI that will chase and attack you when in range, and you can earn points by shooting them. When your health reaches 0, the game resets. The implementation uses canvas for rendering, with raycasting for the 3D perspective effect. All logic is contained within the single HTML file as requested.