Hexographer is software for creating game maps based on hexagons. With the default icons, it produces maps with an old-school feel—like the original Greyhawk maps—but it can also be used to make space maps, large-hex battle-maps, and a variety of other styles. Newly added features include railroad lines, additional terrain types (such as lava, ruined cities, and ice flows), modern military unit symbols, and improved elevation lines.

Hexographer is available in free and paid versions. The free one runs in your browser via Java. The paid one allows you to add custom icons and notes to hexes, runs locally, and can be had with a 1 year or permanent license.