Build a true 3D top-down survival arena game in one single HTML file.
Tech: use Three.js via CDN/importmap with real 3D meshes and directional lighting.
Theme: abandoned sci-fi outpost, hazard waves, subtle volumetric-fog feel.
Camera: angled top-down (isometric-like) camera tracking the player.
Mechanics: move, shoot, dodge roll, survive timed waves.
Pickups: health packs and short damage boosts.
Progression: waves grow faster; score based on survival time.
UI: HP bar, wave timer, score, dodge cooldown, start/game-over overlays.
Controls: WASD to move, click to shoot, Space to dodge.