Heightmap Level Generator is a free browser tool for making procedural terrain and heightmaps for Unreal Engine, Unity, and Godot. It uses WebGPU compute shaders and WGSL to generate 16-bit terrain with cliffs, hills, mountains, erosion, rivers, lakes, and a raised border. It can also build connected roads, towns, map exits, road grades, and embankments near water. Four biome options are available: temperate, steppe, desert, and snow world. Settings can be adjusted live, with 12 seeds available for comparison; users can preview a 2D map or 3D mesh and walk through terrain in first person. Exports include engine-specific formats, Web or three.js, heightmaps, splatmaps, masks, water levels, color maps, layout JSON, glTF meshes, and metadata. Road, town, and water masks and layout files can support PCG, Houdini, or custom placement scripts. Users can share URL links, save and load JSON, undo and redo, and use presets. The online version requires WebGPU; local operation uses Node.js and a WebGPU-capable browser. The MIT-licensed project allows commercial use of exported assets.
Who it is for
This tool suits game developers and terrain creators working with Unreal Engine, Unity, Godot, or web formats. It is also relevant to users who need terrain masks or layout data for procedural placement workflows.
What is good
- Generates 16-bit terrain with varied land and water features.
- Offers four biome choices.
- Exports to Unreal, Unity, Godot Terrain3D, and three.js.
- Supports seed comparison and first-person terrain previews.
- MIT license permits commercial use of exported assets.
What to know first
- Online use requires WebGPU.
- Local use requires Node.js and a WebGPU-capable browser.
Verdict
Heightmap Level Generator combines terrain generation, live previews, and multiple export types in a free tool. Its browser route depends on WebGPU, and local use adds a Node.js requirement.
Heightmap Level Generator plans and pricing
All plansCompared on game map generators
- Free plan
- Yes
- Generation method
- procedural
- Map dimension
- both
- Custom assets
- Yes
- Seed control
- Yes
- Engine export
- Unreal Engine, Unity, Godot Terrain3D, three.js
- Export formats
- 16-bit PNG, RAW .r16, RGBA PNG, JSON, glTF .glb
