Goal Line Dash

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 arcade football running game titled “Goal Line Dash.” Use a Three.js-style perspective chase camera behind and slightly above the player, looking upfield; the camera follows the runner smoothly as he advances toward the far end zone. The scene should fill the viewport and have a bright sky-blue background with soft atmospheric fog and strong daylight/shadows.

Build a long green American-football field about 23 units wide and 120 units long. Cover it with alternating dark/light green longitudinal field stripes, white yard lines every 10 units, and white sidelines. Place the runner at the near end around the -48 z position and the goal line around +48 z. Beyond the goal line, add an 11-unit-deep blue touchdown end zone and a yellow goal post farther behind it. On both sides, create four-tier pale gray bleachers running along most of the field, populated by regularly spaced small colorful crowd dots/spheres. Add repeated sideline fence props and scattered grass clumps outside the field, matching the low-poly stylized stadium appearance.

The player is a running back centered near the camera, automatically running forward upfield while carrying a brown football in one arm. Prefer a low-poly animated humanoid running-back character with an idle animation before starting and a run/carry animation while running; if the model is unavailable, use a simple blue capsule-like humanoid fallback. Attach a small oval brown football with white laces to the player and rotate it slowly while idle and faster during the run. The player can move only laterally within roughly 8.2 units of the field centerline. Steering should be smooth: A/D keys or left/right arrow keys move left/right, and on mobile provide two large translucent dark arrow buttons in the lower right; also support horizontal swipe gestures on the canvas. Forward motion is automatic, initially about 10.5 units/second and gradually accelerates slightly.

Place eight simple red defenders at staggered positions upfield, alternating across the field, with small capsule bodies and peach spherical heads. Each defender oscillates side-to-side around its base x position by about 1.5 units and subtly rotates as it moves. If the runner comes within approximately 1.28 units of any defender, mark the collision as a tackle, stop the run, switch to idle, play a light impact sound if available, and show a failure state. If the runner reaches/crosses the goal line, stop the run, show a touchdown success state, and optionally play the same available sound at a higher volume.

Overlay a fixed HUD above the 3D scene. In the upper-left, use a rounded dark translucent panel with subtle shadow/blur. Show the mint uppercase spaced label “GOAL LINE DASH,” a large bold white yard counter beginning at “0 yards,” and status text. Before play, show: “Press Start, then dodge defenders and reach the end zone.” During play show: “Run! A/D or arrows to cut left and right. Reach the blue end zone.” On tackle show: “Tackled! Hit restart and find a cleaner lane.” On success show: “TOUCHDOWN! You crossed the goal line.” Add a prominent pill-shaped lime/green gradient button at the bottom center labeled “Start Run”; after play it changes to “Try Again” or “Run Again.” Pressing the button starts or restarts the run, resets the player to the starting side, resets yards and defender positions, and begins the running animation. Enter or Space should also start when not currently running. On desktop hide the mobile arrow controls; on smaller screens show them. Keep the UI touch-safe and prevent mobile scrolling/selection.

The game loop should display progress as yards traveled from the starting side to the goal line, reaching 100 yards at the goal. Keep the player and field visually grounded with soft shadows, simple low-poly materials, and a clean colorful arcade presentation. Include no blockers, power-ups, spin moves, timers, ammo, lives, or additional gameplay systems beyond the automatic run, lateral dodging, defender tackles, touchdown goal, restart flow, yards HUD, and the described stadium environment.