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Arnis open-source project converts OpenStreetMap data into Minecraft worlds

·2026.11.04 01:00

Key point

The project uses OpenStreetMap data to generate explorable Minecraft worlds, with recent updates adding the Moon and Mars.

Details

  • Arnis is an open-source project by Louis Erbkamm that transforms real-world locations into Minecraft worlds using OpenStreetMap data, reaching close to 900,000 downloads and about 70 contributors since 2022.
  • The tool queries mapped elements like buildings and streets to place blocks, converting 3D models for structures too detailed for standard maps, such as the Statue of Liberty or Christ the Redeemer.
  • Recent releases expanded the scope beyond Earth to include the Moon and Mars, while the core goal remains making generation faster and more detailed.
  • Louis Erbkamm, the sole maintainer, uses GitHub Copilot to review pull requests, trace bugs, and run sub-agents that check for regressions and performance issues in large code changes.
  • The project has been adopted by schools where teachers generate local areas for students to improve, and users can report missing mapped elements to OpenStreetMap or the maintainer.
open-sourcegithub-copilotminecraftgeospatial-dataarnisopenstreetmap
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