Minecraft sphere and dome generator

Spheres and domes, layer by layer.

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Runs in your browser. Nothing uploaded.

How to build a sphere in Minecraft

  1. Enter the Diameter and pick Thin, Thick or Filled.
  2. The chart opens on the widest layer. Move to layer 1, the bottom, with the slider or −, build it, then press + to move up and build the next layer on top.
  3. Keep going up to the top layer for a full sphere. For a dome, start at the middle layer instead of layer 1. Click blocks to tick them off as you place them; ticks are kept for each layer, so you can look at the next one and come back.

Building a sphere without losing your place

Spheres go wrong when you lose count halfway up. A few habits help:

  • Mark the centre column. Put a pillar of a different block in the middle, as tall as the sphere. Every layer is centred on it, and you can remove it at the end.
  • Build each layer as a ring around the pillar, using the shaded row and column on the chart to line up.
  • Tick blocks off by clicking them on the chart, and clear the ticks when you move to a new layer.
  • Gather blocks per layer. The layer count tells you exactly what to carry up.

Planets, domes and bubbles

Hollow spheres make planets, glass biodomes, hot air balloons and treetops. A filled sphere is better for a large boulder or the core of a planet you plan to carve into. For a dome over a base, build the top half in glass and the bottom half underground or leave it out.

Each layer is just a circle, so the circle generator is handy for the widest ring on its own.

Not an official Minecraft product. Not approved by or associated with Mojang or Microsoft.