Built for competitive play
Balanced Algorithm
Runs up to 600 iterations to find a layout with no adjacent red numbers, fair resource distribution, and optimal harbor positioning.
Try the generatorStrategy Analysis
Every board gets an instant analysis: resource strength by type, best opening positions, recommended win condition, and dangerous spots to avoid.
Read the guideShare in One Click
Every board gets a unique URL encoding the full layout. Share with players before the session so everyone arrives knowing the setup.
Generate & shareFrom idea to game in 10 seconds
Choose your setup
Select 3-4 or 5-6 players, pick Balanced or Random mode, and optionally choose an expansion pack.
Generate the board
Hit Generate. The algorithm evaluates hundreds of layouts and returns the highest-scoring one in under a second.
Play - or share first
Copy the share link and send it to your group. Everyone opens the exact same board before sitting down at the table.
What makes a balanced CATAN board?
A balanced CATAN board is not simply one where terrains are spread evenly. True balance considers probability, adjacency, resource access, and starting position fairness all at once. The most common mistake players make is focusing only on tile placement and ignoring how the number tokens interact with those tiles.
The numbers 6 and 8 are printed in red because they roll the most often - five combinations each out of 36 possible dice outcomes. When two red numbers sit on adjacent hexes, the player whose settlement touches both gains a significant statistical advantage. balanced board layout prevents this by spacing all 6s and 8s so they never share an edge.
Resource variety at each settlement vertex matters equally. A starting position that touches three different terrain types gives a player far more flexibility than one touching the same type three times - even if the raw probability is identical. Our generator scores every candidate layout on resource diversity alongside numeric probability to ensure competitive opening positions exist across the board.
Harbor placement is the third dimension. A 2:1 Wood harbor sitting next to two low-probability forest tiles is nearly useless. The generator checks harbor-to-resource proximity so that specialist harbors are reachable through high-probability production, making trade a genuinely viable strategy rather than a consolation prize.
For more on reading and using these factors in your opening, see the strategy guide ->