Nortantis Fantasy Maps

Mac OS installers are not currently supported.

For any desktop OS that supports Java, if you want to build Nortantis yourself, the source code is available here.

Generate random maps. Nortantis uses a simple tectonic plate simulation to create continents, islands, ocean, deserts, mountains, trees, regions, and cities, with text.
Adjustable coastline shading and 3 styles of ocean waves
Optional political region coloring
Borders: Frames with adjustable width. Randomly generated frayed edges and grunge.
Paper backgrounds randomly generated from texture images
Tools with brushes for ocean, lakes, land, rivers, political regions, mountains, hills, trees, sand dunes, and cities.
Add, remove, and edit text
Random name generator for person and place names
Export to PNG or JPEG

At least 6 GB of RAM
The installers only support 64-bit (x64) Microsoft Windows and Ubuntu, although you can build any other version from source if it supports Java 11 or higher and Swing.
A faster CPU will give you a much better experience, since Nortantis does heavy image processing on the CPU.

Nortantis is built on top of a polygon-based island generator by Red Blog games (here). It also uses several other open source libraries, one of the most important of which is JTransforms, which is used to do very fast image transformations.
Nortantis can generate random background images of arbitrary sizes based on a texture image. To do this, I used step 2 of the algorithm in section C from Random Phase Textures: Theory and Synthesis by Bruno Galerne et al. I used my own methods instead of steps 1 and 3.
The look and feel is from FlatLaf.

If you have questions or find a bug, I recommend creating an issue on GitHub. You can also contact me at nortantis@gmail.com.