Islandbound

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 portrait-mode third-person tropical island adventure slice titled “Islandbound.” Use a Three.js-style low-poly 3D presentation with a soft blue-green gradient sky, atmospheric fog, warm directional sunlight, and a large stylized circular island surrounded by animated turquoise ocean. The island should have a sandy cylindrical base, a raised green grass plateau, wet reflective sand around the shoreline, and many small wind-swaying grass blades. Scatter low-poly tropical trees in two variations and enlarged low-poly rocks around the island. Keep the visual style coherent, simple, colorful, and game-like, using low-poly adventurer and nature assets.

Place the player as a third-person ranger/adventurer character, viewed from behind at roughly 8 units away. The character wears dark olive/brown expedition clothing with a backpack/gear-like silhouette and has a runtime idle/locomotion animation. Start the player near the southern side of the island at approximately (0, 2.55, 34), facing toward the island interior. Support mobile controls: drag a virtual stick on the left to move, drag on the right side to rotate/look, and tap to jump. Movement should use a move speed around 10, jump speed around 10, gravity around -24, collision against the island surfaces, and a slope limit around 42 degrees. The camera should follow the player in third person and remain suitable for a tall portrait viewport.

Build the central objective as Quest 01: “Reach the ancient stone shrine.” Put an ancient shrine toward the far/northern interior at approximately (0, 2.6, -28). It consists of a low octagonal stone base, four tall rectangular stone pillars arranged around it, and a hovering faceted cyan/turquoise crystal orb. Make the orb glow, slowly rotate, and bob vertically. When the player comes within about 8 units of the shrine, mark the quest complete and change the quest text to “Quest complete” followed by “The island has chosen you. Explore beyond the shrine.” Display a temporary notification such as “Shrine awakened — expedition complete!”

Add a fixed HUD overlay matching the game’s mobile presentation: dark translucent rounded panels with subtle borders and shadows at the top. On the upper left show “ISLANDBOUND,” the subtitle “Tropical adventure · portrait mode,” and a warm yellow-orange rounded “Start expedition” button. On the upper right show “Quest 01” in yellow and the objective text. Before starting, leave this start panel visible; pressing the button begins the expedition, hides the button, and shows a toast notification such as “Find the glowing shrine in the jungle.” At the bottom center show the instructional text “Drag the left stick to move · drag the right side to look · tap jump.” Use responsive sizing, safe-area insets, and ensure the HUD does not block gameplay controls except for the intentional start button.

Include subtle environmental animation: animated ocean waves with shifting bands and highlights, grass swaying in the wind, fog/sky atmosphere, and a rotating/bobbing shrine crystal. As the ranger walks along the wet shoreline, leave alternating left/right dark translucent footprint decals behind the character; fade each footprint gradually and recycle a limited pool of footprints. Do not add combat, enemies, inventory, health, weapons, multiple quests, or other systems not described here. The core loop is start the expedition, explore the island using mobile third-person movement/look/jump controls, and reach the glowing shrine to complete Quest 01.