Skyline 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 responsive browser endless-runner game titled “Skyline Dash.” Use a full-screen HTML canvas with a dark neon-blue cyberpunk skyline and a pseudo-3D road/rooftop track receding toward the horizon. The camera is centered behind/in front of a small glowing cyan player avatar, with three lanes arranged left, center, and right. The road should be a dark trapezoid widening toward the bottom of the screen, with cyan lane-divider lines and animated horizontal perspective grid markings that convey forward motion. Behind it, render a deep navy-to-blue vertical gradient sky, a soft cyan radial glow, and a distant scrolling silhouette of rectangular skyscrapers around the horizon.

The player is a simple rounded cyan glowing capsule/robot-like figure at the near end of the road, with a dark horizontal visor/window and two small mint-green circular feet/lights. The player can switch among the three lanes and jump. Lane changes smoothly interpolate toward the selected lane; clamp movement so the player cannot leave the left or right lane. A jump follows a short arc: launch vertically, rise, then fall back to the road, and do not allow another jump while airborne. Make the player lift visibly above the road during the jump and add a subtle squash/stretch effect.

This is an endless survival run. Start in a menu overlay, not immediately in play. The menu is a centered rounded dark translucent card with a thin light border and shadow. Show the two-line title “Skyline” in white and “Dash” in bright cyan, the Russian description “Мчи по крышам, собирай монеты и перепрыгивай лазеры. Скорость растёт — сколько продержишься?”, a bright cyan-to-mint button labeled “НАЧАТЬ ЗАБЕГ,” and a small control hint: “← → или A / D — смена полосы · Space — прыжок”. When the run begins, hide the menu and show touch controls on narrow/mobile screens: left arrow, a wide “ПРЫЖОК” button, and right arrow along the bottom. On desktop, rely on keyboard controls and hide the touch buttons.

During play, continuously increase the forward speed over time, capped at a high maximum, so the scrolling skyline/grid and approaching objects get faster. Award passive score continuously based on survival time, and display integer score. Spawn red/pink glowing rectangular barriers in random lanes at the far end of the track; they approach the player with perspective scaling. Treat these as the laser/barrier hazards referenced by the UI. If a barrier reaches the player’s lane while the player is not sufficiently high in a jump, end the run immediately. A jump should let the player clear the barrier. Spawn lines of 2–4 bright cyan glowing coins in a randomly selected lane, spaced along the depth of the track; coins approach and scale up with perspective. When a coin reaches the player in the same lane, collect it, increment the coin counter, and add a bonus of 55 points. Give coins an elliptical/rotating appearance with a pale highlight and cyan glow.

Use a HUD fixed over the canvas: upper-left brand text “SKYLINE DASH” in uppercase with letter spacing, and upper-right rounded translucent statistic pills labeled in Russian “ОЧКИ” (score), “РЕКОРД” (best), and “МОНЕТЫ” (coins), each with a large value beneath. Persist the best score in local storage under a Skyline Dash best-score key and update it at game over. On collision, show a game-over overlay matching the menu card style, with title “Забег” / “окончен,” a Russian result line reporting the final score and collected coins, a bright “ЕЩЁ РАЗ” restart button, and the hint “Собирай голубые монеты и не попадай в красные барьеры”. Include a subtle brief screen shake on collision.

Controls: ArrowLeft or A moves one lane left; ArrowRight or D moves one lane right; ArrowUp, W, or Space jumps; Enter starts/restarts when not currently playing. Prevent repeated movement from a held key by handling each key press once. Touch buttons perform the same actions. Keep the visual language consistent: dark navy backgrounds, cyan/aqua road and player glow, mint accents, hot pink/red hazards, rounded translucent glass UI, strong soft shadows, and clean system sans-serif typography. Make the canvas resize to the viewport and support high-DPI displays, with no scrolling.