| Row | Blocks | From the west edge |
|---|
| Row | Blocks | From the west edge |
|---|
Stand at the north-west corner. Row 1 is the north face of the preview. Finish the highlighted row, mark it done, then walk one block south. Repeat that footprint for each wall layer. Progress stays in this browser. Full blocks only — stairs and slabs are not in this first version.
Minecraft blocks sit on a square grid. The generator marks a cell if the centre of that block falls inside the chosen radius, then strips every block that is completely surrounded, which leaves a wall exactly one block thick. That is the usual survival approximation for towers, dome bases and farm rings.
11 and 15 are easy to centre on a single block. Even diameters (12, 16, 20) centre on a 2×2 and are better for portals or iron farm rings.
The word describes the game the blueprint is for. Sealmount is an independent fan tool and is not approved by Mojang.