Moto Loire 50

Cinevva's analyzer read this game's design doc and its source, then wrote the brief below. "Make your own" hands it to the game creator as your opening message, so you start from a real spec rather than a one-line idea.

Create a browser-playable 3D third-person motorcycle free-ride game titled “Moto Loire 50.” Use Three.js or an equivalent real-time 3D engine with a perspective chase camera positioned behind and slightly above a small red supermoto, looking toward its front and the road ahead. The camera should smoothly follow the motorcycle and rotate with its steering. Render a bright low-poly French suburban town: pale blue sky with distance fog, green flat ground, a broad dark charcoal asphalt road running forward, a thin pale cream center line, light gray sidewalks on both sides, simple beige box houses with reddish-brown flat/slightly angled roofs, sparse dark green conical trees with brown trunks, and intersecting side roads. Include a simple garage building and paved pad off the road. Add a few decorative toy-like traffic racer cars spaced along the road that slowly move and wrap around when they pass the end of the scene; they are scenery rather than aggressive opponents.

The player vehicle is a procedurally modeled Rieju MRT 50-inspired supermoto/moped, seen prominently from behind: lava-red plastic fuel tank and fenders, black seat and frame, silver engine, black rubber wheels, silver forks, black handlebar, pale headlight, silver expansion exhaust on the right, and red tail section. It should sit centered on the main road at the start. Provide arcade motorcycle physics rather than simulation: W applies throttle only when a forward gear is engaged, S brakes and also acts as a brake input, A/D steer and gradually rotate the bike, and speed moves the bike forward along its heading while clamping lateral position to the road. The bike starts stopped in neutral at 0 km/h and 1200 rpm. E cycles through neutral and gears 1–6, with a brief on-screen toast such as “Gear 1” or “Neutral.” The bike accelerates according to its installed engine kit and naturally decelerates when throttle is released; cap speed according to the kit. Holding Space together with throttle at speed above roughly 12 km/h raises the front into a modest wheelie and labels the state WHEELIE. Holding B, or holding throttle and brake together, activates a burnout state, labels BURNOUT, and prevents normal acceleration. Include a simple synthesized engine tone whose pitch follows rpm and becomes more intense with throttle/burnout, starting after keyboard or pointer interaction.

Use the following exact tuning options in an in-game garage: default 50cc AM6 stock with power 5.4 and max speed 64; 70cc Top Rose kit with power 8.0 and max speed 86; and 75cc Top Rose kit with power 9.2 and max speed 98. The garage also offers Sport exhaust and Race expansion pipe choices, plus Lava red, French blue, and Signal yellow plastics. Engine kit changes acceleration/top speed; the exhaust changes the visible pipe treatment and displayed setup text; plastic color changes the tank/fender plastics. Pressing G opens and closes a translucent garage panel titled “Garage — Saint-Cyr”; while open, freeze the bike’s movement but keep the world/traffic and camera rendered. Pressing R resets the motorcycle to its starting location, upright orientation, stopped speed, and neutral gear, with a “Bike reset” toast.

Overlay a fixed translucent dark HUD over the upper-left of the screen. It must show the gold title “MOTO LOIRE 50,” current rounded speed in km/h, current gear as N or 1–6 plus rounded rpm, the installed setup such as “50cc AM6 · stock,” and a status line normally reading “Road ride,” changing to “WHEELIE” or “BURNOUT” during those actions. Put a translucent help strip along the lower-left/bottom reading “W/S throttle & brake · A/D steer · Space wheelie · B burnout · E shift · G garage · R reset.” On touch/mobile screens, provide five circular translucent controls near the lower-right/bottom: left, right, throttle/up, brake/down, and wheelie/up-arrow, wired to the same controls with press/release behavior. Use dark blue-black translucent panels, thin light borders, rounded corners, soft shadows, a gold/yellow accent, and clean white Arial-like text. Show temporary centered orange-red toast notifications for gear changes, upgrades, and reset. The overall visual style should remain simple stylized low-poly geometry, soft directional shadows, ambient/fill lighting, and a calm road-riding sandbox with no combat, lap system, score, lives, or finish condition.