Terrumi

A creative worldbuilding playground

Create Your Own World

Shape a place that feels like yours. Start with a welcoming world, then connect its forests, waterways and small towns.

Start CreatingSee how it works

Create in your browser. Begin with an idea.

Waterfold: a connected village, woodland and lake sheltered by mountain ridges beside the coast.

Waterfold, Earth Haven · captured in the editor

Small details.
A world that feels like yours.

Imagine · Shape · Explore
01 / The landscape

Build Landscapes Your Way

Start with open water and draw your first island. Raise mountains, soften a hillside, create lakes and trace a river across the land.

Add a few trees or a broad forest. Change the height and tree cover until each place has its own character.

Explore the map maker
Wooded mountain ridges framing a glacial lake and its winding outlet to the coast.
A ridge, a valley, a lake: the land gives every detail a place.
Waterfold village with a small centre, varied homes and connected lanes beside the woods.
Connected lanes lead from the village square to the surrounding landscape.
02 / The places

Design Towns and Roads

Give your landscape somewhere to lead. Place buildings, grow a small village or plan a larger town. Connect places with roads and paths, and cross rivers with bridges.

Preview a stroke as you draw, then release to place it. Undo and redo make room to try a different direction.

  • Buildings & towns
  • Roads & bridges
  • Optional place names

Four characters. Countless possibilities.

Explore Different Worlds

Planet, region, doorstep. These three views are real captures of the same Earth Haven world. Every part remains yours to edit.

Earth Haven seen as a globe, the planet containing Waterfold.
01 · PlanetEarth Haven, your wider world.
Waterfold coast, lake, woodland and settlement in the same Earth Haven world.
02 · RegionFind a coast and a valley to call home.
The homes and connected lanes of Waterfold village in Earth Haven.
03 · Close-upMake a small place your own.

Want a little of everything? Concordia brings all four world styles together. The Next stroke style selector also lets you mix their terrain, trees and buildings as you edit.

How Terrumi Works

Your first world, step by step

  1. Find your beginning

    Choose a ready-made planet to edit, or create a new one with nothing but water.

  2. Make a place your own

    Pick a region, shape the land and add forests, buildings, roads and rivers.

  3. Keep your world

    Continue a browser draft, export a JSON backup, or sign in and save a separate cloud copy.

Start Building Your World

A quiet island, a forest village, a whole new planet. Start with one idea and see where it takes you.

Start Creating