Fantasy world map generator
A whole hex world from a seed: continents, climate, rivers, biomes, towns and roads. Free, in your browser.
About this generator
Every map is a whole world built from one seed: continents and plate uplift set the land, a priority-flood drainage model and prevailing winds decide where rain falls, and temperature crossed with moisture assigns twenty-eight biomes, from taiga and rainforest to salt flats, volcanic peaks and feywild groves. Flow accumulation carves rivers, settlements seat themselves by fresh water and harbours, and roads connect them across a cost surface that bridges rivers and skirts mountains.
The same seed always makes the same world, so you can share a seed and get the exact map back. This free tool generates one world at a time and hands you the PNG.
Inside Six Axes, the map does much more
The full version runs the same engine far further. Worlds scale up to 250 by 250 hexes, and you are not stuck with what the generator rolls: paint or repaint any hex by hand, drop your own images onto the map and drag them into place, and tune every knob, land and ocean level, continents and plate activity, latitude and prevailing wind and the rain shadows they throw, river and road density, how much of the world is fantasy terrain, and how thickly settlements, roads and points of interest are seeded. Each world is tied to your campaign, shareable, and annotated with the places your party discovers.
And the world map is only one of four generators. Six Axes also builds city maps, top-down dungeon battle maps, and building and room floor plans, each hand-editable and each renderable by AI in the same four styles, so one tool draws your continent, the capital on it, the dungeon beneath the capital, and the very room where the fight breaks out.
Generate a fantasy world map from a seed
A whole world in your browser: continents and coastlines, climate and rivers, biomes, settlements, and the roads between them — generated from a seed, so the same seed always makes the same map. When you like one, download the PNG.
It's the same generator that draws worlds inside Six Axes, so what you make here is real cartography, not placeholder noise.
How to use it
- Enter a seed, or start from a random one.
- Generate, and regenerate until the coastline and continents feel right.
- Download the PNG to drop into your notes, VTT, or session prep.
Common questions
Is the map generator free?
Yes — free, no login, and you can download the result.
Can I get the same map again?
Yes. The same seed always produces the same world, so note the seed if you want to return to it.
What's on the map?
Continents, climate, rivers, biomes, settlements, and roads — a full hex world, not just terrain.
Related tools: Session zero checklist · Encounter balancer
These tools come from Six Axes, which sits in your session and records the table, writes the recap, and builds the campaign wiki automatically. See what it does or join the pilot.
These tools run on a slice of what Six Axes does at the table.
The full product records your session, writes the recap, keeps the campaign wiki, and reads how your table actually plays, across whatever system you run. It is in free pilot now.