Arnis

Is Arnis free to use?

Yes! Arnis is completely free and open source, licensed under the Apache 2.0 License. There is a paid online generation service called MapSmith if you want to generate worlds on mobile devices.

How large of an area can I generate, and how long does it take?

There is no hard limit, but practically the size depends on your computer's available memory and the density of map data. Small towns and neighborhoods take a few seconds. Larger areas like city centers require more RAM and may take several minutes.

Which Minecraft versions and platforms are supported?

Arnis supports both Java Edition (1.17+) and Bedrock Edition (any up to date version). The desktop app runs on Windows, macOS, and Linux. For mobile, generate a Bedrock .mcworld file and transfer it to your phone or tablet. You can also use the MapSmith online generation service from any device.

Where are the generated worlds saved to?

For Java Edition, worlds are saved directly to your Minecraft saves folder. For Bedrock Edition, a .mcworld file is saved to your Desktop. In both cases, you can choose a custom output location in the settings.

What data source does Arnis use?

Arnis uses OpenStreetMap (OSM) for building footprints, roads, land use, and other map features, fetched via the Overpass API. Elevation and terrain data comes from open topographic datasets from AWS Terrain Tiles.

Is Arnis safe to use?

Arnis is 100% safe. The entire source code is publicly available on GitHub for anyone to inspect. It does not modify your Minecraft installation, it only creates new world files.

Is Arnis AI-generated?

No. Arnis does not use AI or machine learning. It reads real geographic data from OpenStreetMap and elevation datasets, then deterministically converts that data into Minecraft blocks using rule-based algorithms.

My area is missing buildings or roads. Why?

Arnis generates worlds based on OpenStreetMap data, which is community-contributed. Some areas, especially rural or less developed regions, may have incomplete or missing map data. You can help improve coverage by contributing to OpenStreetMap.