Saw this repo and realized someone had finally solved the problem everyone pretends isn’t annoying: manually recreating real-world locations in Minecraft. Arnis pulls data directly from OpenStreetMap and generates your exact neighborhood, city, or street block by block, turning the real world into a playable Minecraft map. 100% open source.
Arnis GitHub repository homepage
Arnis by louis-e is for Minecraft players and creators who want real-world maps in-game, solving the problem of manually recreating locations by automatically generating accurate worlds from geospatial data. Arnis creates complex and accurate Minecraft Java Edition (1.17+) and Bedrock Edition worlds that reflect real-world geography, topography, and architecture.
What Is Arnis?
Arnis is a free and open-source tool that generates Minecraft worlds from real-world geographic data. It processes geospatial data from OpenStreetMap as well as elevation data to create detailed Minecraft representations of terrain and architecture. Generate your hometown, big cities, and natural landscapes with ease, handling large-scale geographic data from the real world.
[!NOTE] The project handles both Java Edition (1.17+) and Bedrock Edition, making it accessible to the entire Minecraft community regardless of platform. The algorithm intelligently converts real-world structures into Minecraft blocks while preserving geographic accuracy.
How Arnis Works: OpenStreetMap to Minecraft
| Process Step | Description |
|---|---|
| Data Collection | Pulls geospatial data from OpenStreetMap (roads, buildings, water, etc.) |
| Elevation Integration | Incorporates terrain elevation data for accurate topography |
| Block Mapping | Converts real-world features to appropriate Minecraft blocks and structures |
| World Generation | Creates .mca or .mcworld files ready for Minecraft |
| Customization | Allows adjustment of scale, detail level, and block palettes |
Technical Features
- Multi-Edition Support: Generates worlds for both Minecraft Java Edition (1.17+) and Bedrock Edition.
- Large-Scale Processing: Handles entire cities or regions, not just small areas.
- Open Data Integration: Uses freely available OpenStreetMap and elevation data sources.
- Customizable Output: Adjust generation parameters for different visual styles.
- Standalone Tool: No Minecraft server required for world generation.
Community reactions to Arnis’s real-world mapping capabilities
Community Impact & Nostalgia
“This reminds me of how my Dad used to buy a Flight Simulator game of wherever we planned to go on holiday back in the 90s/00s because those maps were so accurate to the real world places that it was the most effective way for him to figure out which hotels were closest to the airport or had convenient access to downtown areas and what landmarks to expect while visiting etc , long long before Google Earth ever existed! 😍” , @georgiagemo
“Bruh. Brings me back to when little me recreated my village in Minecraft. The weeks spent building are something I’ll never forget.” , @lukas.materna.507
More community reflections on the value of real-world mapping in games
Why This Changes Minecraft World Building
Arnis democratizes what was previously a monumental manual task: recreating real locations in Minecraft. Here’s what it enables:
- Educational Use: Teachers can generate local geography for geography or urban planning lessons.
- Historical Recreation: Preserve historical neighborhoods or cities in Minecraft before they change.
- Game Development: Indie developers can create realistic settings for adventure maps or mods.
- Personal Nostalgia: Recreate your childhood neighborhood or favorite travel destinations.
- Urban Planning Visualization: Test urban design concepts in a familiar, interactive environment.
Project Link
Related Tools
If you enjoy mapping the real world in digital spaces, check out TREK, a self-hosted collaborative travel planner that uses interactive maps to organize your physical journeys.
Arnis represents a bridge between the digital and physical worlds, turning the entire planet into a canvas for Minecraft creativity. By automating the tedious parts of world-building, it lets creators focus on what matters: storytelling, gameplay, and exploration in worlds that feel genuinely connected to our own.
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