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Is a round Minecraft world possible?

Jeija
Demos
YouTube
2 HN users recommended this demo2 months2016–2025 score 2
Years with an HN recommendation, 2007–2026

Pointed to in Minetest and spherical-voxel-world threads as a striking example of what the open-source engine can do.

Jeija demonstrates a modified Minetest game with a spherical planet, using a grid transform to make a voxel world round. It includes the orbit math and download links for the spheretest build.

“A minetest developer just recently published a sphere-shaped planet version of minetest” (HN, 2016)

2 recommendations · 2 citations · Demos · intermediate · partly dated

4 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@gatane Sep 2025 Recommends
on HN thread Making Minecraft Spherical
This reminded me of another attempt, but in Minetest: - [this video] This person has another, more technical video where they talk about the math behind it btw
Attempt at a spherical voxel world in Minetest

Citations, criticism and jokes

@TamHagmas Oct 2016 Cites it
on HN thread Minetest – A free, open-source voxel game engine and game
A minetest developer just recently published a sphere-shaped planet version of minetest: [link] [this video] [link] That's just the thing I love about these smaller voxel games - they may not have a huge userbase, but there is innovation happening.
Sphere-shaped planet version of Minetest
@huachimingo Feb 2021 Cites it
on HN thread Show HN: Real-time multiplayer games with cubes. Early feedback on dev docs?
Minetest had a mod to fake spherical planets using a torus. Main video: [this video] More in depth: [link] The main problem with minetest it is that it seems not complete/done on the art assets and main game, and the devs always say that is intentionally not a Minecraft clone yet people come searching one on the subgames.
Mod faking spherical planets using a torus

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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