Glow Run

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 playable Three.js-style 3D endless runner titled “Glow Run.” Use a third-person chase camera positioned behind and slightly above the player, looking down a long three-lane magical runway. The camera should follow the runner’s horizontal movement and raise slightly while jumping. Use a dark deep-purple sky/background with fog, a wide violet track, glowing pink lane-marker strips, soft shadows, and neon pink/cyan crystal spires with floating white orbs along both sides. Keep the visual style cute, polished, low-poly/anime-inspired, and colorful, with translucent rounded HUD panels and pink, lavender, gold, and cyan glow accents.

The player is an original cute female runner, preferably using a stylized low-poly Cube World female character model; if unavailable, use a simple fallback character with a capsule-like pink body/dress, a small face, and purple hair. Place her at the near end of the track, centered in one of three lanes at x positions approximately -3.2, 0, and 3.2. Add a glowing circular aura ring around her feet. She automatically runs forward while the world moves toward the camera. The run begins from a title/start state and starts when the player presses the Start Run button, Space, or Enter. During play, the player can switch one lane at a time with A/D or Left/Right arrows; on mobile provide translucent bottom-left left/right buttons. Jump with Space, Up Arrow, or W; provide a bottom-right up-arrow mobile button. Lane changes should smoothly interpolate toward the selected lane, and jumping should use gravity with an initial vertical velocity around 8.4 so the runner can clear low obstacles.

Generate an endless course by repeatedly spawning rows ahead of the player. Place dark purple dream-block obstacles in lanes: each obstacle is a rounded-looking/solid violet rectangular block about 1.45 wide and 1.2 high with a glowing pink torus warning halo on top. Rows usually block one or two lanes while leaving a randomly chosen safe lane, with occasional single obstacles. The player collides with an obstacle when close in depth and horizontal position and is low on the ground; jumping over it avoids the collision. On collision, subtract 3 hearts, subtract 200 score but do not go below zero, and grant about 1.25 seconds of invincibility with a brief blinking effect. Do not end the run if hearts reach zero during the opening distance; after the runner has traveled more than about 25 distance units, end the run on a hit that leaves zero hearts. Remove passed objects and continuously spawn new rows so the course is endless. Gradually accelerate the runner from speed 12 up to a maximum of 24, displaying speed relative to the initial speed as 1.0x through 2.0x.

Place floating collectible pickups along the safe lanes and slightly ahead of obstacle rows, at about y=1.12. Most are hearts, with occasional pink gems. They should bob vertically, rotate, and use the provided-looking 3D pickup style when available: a cyberpunk heart pickup for hearts and a pink gem pickup for gems; simple glowing faceted substitutes are acceptable. Collecting a heart adds 1 heart and 100 score. Collecting a gem adds 3 hearts and 300 score. Trigger small pink sparkles at the pickup and a short digital jump/pickup sound. A pickup is collected when the player is near it in lane/depth and within vertical reach. Hearts are also the progression currency.

Implement five visual upgrade tiers based on total hearts: 0 Cute Starter, 6 Ribbon Idol, 14 Star Pop Hero, 25 Magical Princess, and 40 Aurora Queen. Update the runner’s colors as tiers advance: begin with dark purple hair and pink dress, then use brighter pink hair/pale dress, yellow hair/cyan dress, icy hair/white dress with purple aura, and white hair/warm pale dress with cyan aura. At tier 2 or above add a visible hair ribbon/bow; at Star Pop Hero add translucent sparkle wings; at Magical Princess add a small gold five-spike crown; retain wings and crown for Aurora Queen. Increase the aura ring size and change its glow color per tier. Display a brief centered upgrade message such as “Ribbon Idol” with “Upgrade unlocked — she glows up!” whenever a new tier is reached. The highest tier is not merely cosmetic: when the player reaches Aurora Queen and collects at least 50 hearts, finish the run successfully with an “Aurora Finish!” message.

Create the HUD as an overlay matching the screenshot: top-left translucent rounded panel showing “Hearts [number] · [score]” and “Speed [multiplier]”; top-right panel showing the current tier name and a rounded horizontal progress bar. The bar should show progress from the current tier’s heart threshold toward the next threshold, use a pink-to-gold-to-cyan gradient, and be full at Aurora Queen. Before play, center a large glowing “Glow Run” message with the subtitle “Collect hearts to unlock prettier magical outfits.” and a prominent pill-shaped gradient “Start Run” button. During play hide the start button and show a bottom instruction pill reading “A/D or ←/→ to switch lanes • Space/↑ to jump • collect hearts.” On desktop hide the touch controls; on smaller/mobile screens show translucent rounded left, right, and up-arrow controls at the bottom. On game over show “Try Again!” and the subtitle “Keep collecting hearts and dodge the dream blocks.” with a “Run Again” button. On the successful 50-heart finish show the final hearts and explain that the prettiest upgrade was reached.

Use responsive full-screen rendering, a dark purple foggy environment, antialiased 3D graphics, animated lane glows, rotating obstacles, bobbing/rotating pickups, drifting side crystals, pickup sparkles, soft lighting, and shadows. Keep controls pointer/touch-safe and prevent scrolling on mobile. The game should feel like a cute neon magical runway survival-and-collection runner, with the primary goals of switching lanes, jumping obstacles, collecting hearts/gems, and upgrading the runner’s appearance.