Make a 3D first-person sci-fi shooter in one web page that looks as close to a AAA game as you can. Setting: an assault on an alien terraforming spire at violet dusk on a desert moon. Rust-red mesas and needle-like black rock spires stretch for kilometres under a purple-pink sky with a huge ringed planet on the horizon, floating rock shards, a sea of low cloud below the cliffs, and layered haze so distant silhouettes fade into the sky. On the summit a colossal black alien spire fires a white light beam straight into the sky. Glowing cyan light pillars and red circuit lines run through the alien architecture. Paths switch back up the cliffs over stone bridges and terraces. The player holds a detailed hard-surface plasma rifle: glossy deep-red armour plates, white ceramic body, brass trim, bevelled edges, and a small screen on top showing the ammo count. Weapon sway, recoil, muzzle flash, reload. A second weapon to switch to. Enemies: alien drone-warriors and flying craft that move, take cover and shoot back with visible glowing projectiles, plus a big walker boss with a name and health bar. Friendly squadmates fight alongside you and speak radio lines as subtitles. Explosions leave billowing smoke, debris and embers. The HUD is elegant: gold serif titles, objective text, compass strip, minimap, shield bar, ammo counter, grenades. Clear objectives that lead up the cliffs to the spire. It should look cinematic and feel fun the moment it loads.