Open-source, client-side code playground supporting 90+ languages/frameworks. Runs entirely in the browser with SDK for embedding. Entry point for all LiveCodes skills.

Use when adding or modifying WebXR, AR placement, VR immersion, headset controller input, or XR rendering modes in Tiny World Builder.

Use when visually testing Tiny World Builder UI, camera, ghost opacity, buildings, tile geometry, or frontend polish in the browser.

Use when changing Tiny World Builder's mode indicator, boot tool selection, or Esc-to-Select behaviour.

Use when changing the Tinyverse ground-surface race track, perimeter bridge loop, rally karts, or poser-surface show/hide hook.

Tinyverse collectibles lane — pack reveal, frozen islands, play-mode visits. Universe carousel is archived but code stays in repo.

Use when adding or changing Tiny World Builder tile/object repeat-click behavior, terrain stacking, floors/intensity, fences, rocks, walls, crops, or Monument Valley-like height/detail growth.

Use when editing the Tiny World Builder repo, especially tiny-world-builder.html, to preserve the static classic-script Three.js r185 app structure and local edit/reload workflow.

Use when adding or changing GLSL effects in Tiny World Builder — landscape water, waterfalls, foam, smoke, explosions, damage/wear overlays, or the reusable TinyShaderFX library. Covers where shaders live, the override relationship between LandscapeEngine.js and engine/landscape/*.js, and the procedural-noise toolkit.

Use when changing Tiny World Builder Settings modal tabs, panels, controls, rendering/world/material/crowd/AI settings, or settings accessibility.

Use when adding or changing persisted user state — settings defaults, audio, camera/orbit, panel positions, feature flags, and the in-app "Save Defaults" pipeline that snapshots localStorage into tinyworld-defaults.json. Also covers the inline-script regex gotcha that has burned us twice.

Use when changing Tiny World Builder renderer setup, shadows, smoke, voxel clouds, ghost board render cost, frame loop, or GPU performance.

Use when changing ghost board generation, path / road / river continuity, deterministic regen, edge connections, or anything that runs inside makeGhostWorld in tiny-world-builder.html.

Use when changing ghost boards, multiplayer preview boards, panning, ghost visibility, jigsaw reveal, or any visibility behavior around the active Tiny World board.

Use when changing the Mesh Terrain sculptor — the opt-in voxel-block landscape designer that paints per-voxel materials and pull/push-sculpts flat-topped blocks, then keeps the block mesh as the rendered terrain. Module engine/world/46-mesh-terrain.js.

Use when editing Tiny World Builder prompts, model-generated worlds, Auto suggestions, or any model behavior that should create coherent low-poly 3D board scenes.

Use when adding, importing, designing, reviewing, or animating low-poly / stylized 3D assets in Tiny World Builder, including Three.js procedural meshes, GLB/GLTF assets, Poly Pizza models, material palettes, scale/orientation, silhouettes, clouds/planes/crop dusters, and toolbar thumbnails.

Use when changing the first-class Island Viewer shell, sequential generated-island viewer routing, or viewer-scoped graphics defaults.

Use when changing the home island layout, edge dressing, undersides, autoincentive sponsor banner (now a top-left logo-adjacent DOM banner), plane/crop-duster flight paths, banner streamers, or which side of the island is "front".

Use when changing Tiny World Builder API, webhook, SSE, MCP, plugin, or automation examples.