Retro Fortress Shooter Game Builder

Storm a retro 3D fortress in a first-person shooter that Claude Code builds as one HTML file: sliding blast doors, a gold keycard, two secret push-walls hiding a vault and a chaingun, three enemy tiers including a boss, four weapons, a minimap and a status bar face that grins when you grab the big gun. One map, pixel-art textures drawn in code, FM synth music and an invincible ?showcase=1 autopilot trailer. Needs internet: Three.js loads from a CDN. 5 variables re-skin it.