About this generator
This demo uses constraint propagation to build a coherent map from simple rules.
- Each cell begins with several possible tiles.
- When a cell collapses to one tile, neighbors are pruned to keep things consistent.
- Repeat until the whole grid forms natural‑looking structures.
Tile legend
- Deep Blue: Deep water
- Blue: Water
- Yellow: Sand
- Green: Grassland
- Brown: Dirt
- Dark Brown: Tree
Press Restart to see new variations.