Fantasy Planet Painter is a procedural terrain map editor that operates on planetary scale. Paint big shapes on a grid of heights and it generates detailed terrain. Export color maps or grayscale heightmaps. Version 2.0 features world layers, 3D view and experimental World to Beyond DLC.

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About This Software

From a sketch to a world

Fantasy Planet Painter turns a rough sketch of a planet into detailed terrain. Paint oceans, continents and mountain ranges on a grid of heights, and the program generates the coastlines, relief and climate between them. It is made for writers, game developers and map makers who want a believable world quickly, and for anyone who needs planetary heightmaps for other terrain tools.

For anyone who loves creating worlds - for story-telling, game development, or just for fun - Fantasy Planet Painter makes it simple and most importantly, manageable. You stay focused on the big picture, while the program handles the rest, enabling you to add depth and realism to your landscapes without the usual hassle.

So, writers, game developers, and world-building enthusiasts, let's join together and enjoy the power that Fantasy Planet Painter brings you, and craft beautiful, immersive worlds from scratch together!

This is the place for your imagination to go wild.

Features

General Features

  • Infinite procedural details

  • Grayscale png heightmap image import

Version 1.0+

  • Save file format: Binary .world file; Plain text .map file where ascii texts represent height values

  • Export resolutions: 1K, 2K, 4K, 8K, 16K, 32K, 64K, 128K

  • Import options: Grayscale heightmap as raw map data

  • Export options: Grayscale heightmap, Biome map, B/W water map, Diffuse texture (latitude-based)

  • Projection types: Mercator, Gall–Peters, Square (Equirectangular), Mollweide, Sinusoidal, Stereographic, Orthographic, Gnomonic, Icosahedral, Area-Preserving Azimuthal, Conical

Version 2.0 (Windows)

  • Physical world: physical planet generator, heights in metres, twelve paint bands, an adjustable sea level, planet radius and relief.

  • Terrain layers: up to 64 non-destructive terrain layers, with point, box, circle and polygon tools, soft and blending brushes, fills, selections and an eraser.

  • Projections: eleven map projections, from Equirectangular and Mercator to Icosahedral and Conical, and atmospheric 3D rendering.

  • Import: greyscale, colour-to-height and Terrain-RGB heightmaps.

  • Save file format: layered .fpp2 documents. Worlds from version 1.x (.planet) open in 2.0.

  • Heightmap templates (recipes)

  • Location management

Export Formats

  • Colour images: up to 8K (8,192 × 4,096 for a whole-world map), 4K in Flat Land.

  • 16-bit heightmaps: up to 32K (32,768 × 16,384) from Physical World, 8K from Legacy. The largest take several minutes to compute.

  • World layers: drawn into a colour image, or on their own as SVG or transparent PNG.

You paint on a grid of up to 2,048 × 2,048 cells. The program adds the detail between the cells when it renders, which is why exports can be far larger than the grid.

Note that it's normal for a 16K heightmap to take about 3 minutes on a multi-core laptop to export, and 32K should take about 13 min.

Experimental in 2.0

These work, but do note they are early and will change:

  • World layers generate countries, cultures, settlements, rivers and roads that follow your terrain, in fifteen map styles. Tools to edit the generated world by hand are still in development.

  • The atmospheric 3D view renders the surface with clouds, one image at a time rather than in real time.

  • World to Beyond, the free DLC, turns a planet into a playable Beyond All Reason map. Its 3D viewer needs OpenGL 4.3.

  • Steam achievements.

Not in 2.0 yet

  • Editing one region of the world in finer detail, planned for version 2.1.

  • Colour exports larger than 8K.

  • Sculpting in 3D: you paint on the 2D grid, and the preview follows.

Platforms

Please note the following platform differences:

  • macOS version supports map export of up to 8K (16K, 32K and 64K may not be stable);

  • Patches are usually available on Windows version first.

Current Versions

  • Latest Windows version: version 2.0.2;

  • Latest macOS version: version 1.3.1. Version 2.0 for macOS will follow.

Demo

The demo is version 1.2.3 for Windows, from before 2.0. It shows the painting workflow, but it cannot save, import or export, and it does not include any of 2.0.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

AI is used for announcements editing and development R&D.

System Requirements

Windows
macOS
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 (64-bit)
    • Processor: 64-bit dual-core
    • Memory: 4 GB RAM
    • Graphics: Integrated
    • Storage: 200 MB available space
    • Additional Notes: World to Beyond's 3D viewer needs OpenGL 4.3. Large heightmap exports need room on disk: a 16K map is about 120 MB.
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 11 (64-bit)
    • Processor: 4 cores or more
    • Memory: 8 GB RAM
    • Graphics: OpenGL 4.3, for World to Beyond's 3D viewer
    • Storage: 1 GB available space
    Minimum:
    • OS: 10.12
    • Processor: Apple Silicon or Intel
    • Memory: 257 MB RAM
    • Graphics: Integrated
    • Storage: 200 MB available space
    Recommended:
    • OS: 11.00
    • Processor: Apple M1 or Intel Core M
    • Memory: 1 GB RAM
    • Graphics: Integrated
    • Storage: 450 MB available space