Show HN: Cartopolis, interactive globe-sized 3D world
5 hours ago
- Cartopolis is an open-source, self-hostable social 3D map of the real world, running in browsers, desktop, and Android.
- It is built with Rust and the Bevy engine, with code organized into separate crates for core, geo, E2EE, simulator, atlas, client, and Android.
- The map uses open public data (e.g., BAG, 3DBAG, AHN, OSM) for buildings, terrain, street objects, and aerial photos, with full detail primarily in the Netherlands.
- Features include per-building info cards, realistic sun/weather, foot/bike/car routing, avatars, distance-scoped chat, proximity voice, E2E encrypted private chats, and object/3D model placement via HTTP API.
- The project includes a simulator server, self-hostable geo services, and a web console for moderation and data pipelines, with client and server runnable from source via cargo.
- Licensed under MIT OR Apache-2.0, with third-party data and assets under their own terms (e.g., OSM data, 3DBAG, Bevy, Quaternius characters).