How to Play Voxel World Builder - Step by Step
Voxel World Builder is a free block-building sandbox that runs in the browser tab: click to place blocks on a 48x48 lot, orbit the camera around your build, and export the world as a JSON file when you are done. The first block goes down in under a minute.
Open the page and let the engine load
Go to Voxel World Builder and wait for the short "Loading 3D engine" status to clear. The engine is about 0.7 MB, downloads once from this site, and is cached by the browser afterward, so later visits start faster. Any current browser with WebGL works; a device without WebGL shows a plain notice instead of the scene. On first visit a small starter cottage and path are already on the lot, so you can learn the controls by extending a real build instead of staring at an empty field.
Place blocks, then take some away
Click the ground or any block face to place the selected block; it lands adjacent to the face you clicked, so stacking upward or building sideways works naturally. Switch to Remove mode and the same click deletes the block you hit. Drags never build anything - dragging orbits the camera, single clicks place or remove - so you can look around mid-build without accidents.
Work the hotbar
Six block types sit on the hotbar: grass, dirt, stone, wood, sand, and a translucent water block. All of them are flat procedural colors rather than downloaded textures, which keeps the game light and quick on phones.
Camera, lighting, fullscreen
Drag to orbit and scroll or pinch to zoom. One button flips the scene between day and night, swapping the sky color and light intensities. One more click plays it fullscreen with the hotbar and buttons still visible; Escape returns to the page.
Save, export, and know the limits
The world autosaves to this browser as you build, and Export downloads it as a JSON file - a useful backup, since clearing site data also clears the save. There is no import for that JSON yet, so treat it as a backup rather than a transfer. The lot is finite - 48x48 with a height cap of 32 and a 20,000-block ceiling - and the status line explains itself when you reach an edge or the cap.
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