Crucible Heightmap docs: custom Rust map maker

Crucible Heightmap is a Rust map generator for Windows. It makes the land of a custom Rust map and exports it as a ready-to-open .map file for RustEdit.

Start here

New to Crucible Heightmap? See what it does, install it through the Crucible launcher, and make your first island. What is Crucible Heightmap? • Install Crucible Heightmap • Generate your first island

Shape the island

Combine seeds, roll a whole multi-island map, draw your own outline, cut channels, raise volcanoes and add ramps up the cliffs. Combine island seeds • Full multi-island maps • Draw or import an island shape • Channels • Volcanoes and craters • Ramps

Worldgen and painting

Generate biomes, topology, lakes and real Rust cliffs, then paint the terrain, ground textures, biomes and topology by hand. Worldgen • Lakes • Cliffs and rocks • Terrain brush • Splat painting • Biome painting • Topology painting

Preview and export

Look at your map in 3D and in the in-game view, then export the .map file, save seed files and keep your projects. Live 3D preview • In-game 3D view • Export your Rust map • Seed files • Projects and autosave

Custom Rust map guides

The whole custom map workflow: the build order, RustEdit, what spawns where, map sizes and testing on a server. All guides • How to make a custom Rust map • Build order cheatsheet • Rust biomes and topology

Reference and help

Every slider, setting and shortcut, the release notes, and fixes for the problems people actually hit. Sliders • Settings • Keyboard shortcuts • Changelog • FAQ • Troubleshooting