Art & vibe — Lighting (flat, sunset, neon), low-poly vs smooth, readable silhouettes at a distance. Name the camera feel.
Mechanics — One spatial verb (drift, stack, dodge, orbit). Say if it's first-person, third-person, or isometric.
Game loop — Goal in 3D space (reach a gate, survive waves, collect orbs). Checkpoints or score, then quick restart.
3D Style