Players take turns to be the Master Builder and call a colour of brick. Every player places a brick of that colour in an empty space on their board.

If you have bricks in the same pattern as a building template (which may be mirrored, flipped or rotated) you may then choose to build that building. Click on the building's card and then click which space on your playerboard you want the building's tile to be placed. It must be one of the squares that contained a brick you used to build it.

Some buildings give points, some give powers, some give both.

Bricks do not have to be placed next to one another, you can start different buildings in other places. You can also leave a complete pattern of bricks unbuilt until a later turn.

When a building requires another to be "adjacent", this means orthogonal (up, down, left or right) - not diagonal.

Continue on until all playerboard squares are filled. You will lose points for bricks that do not form a building.

Different buildings will be drawn each game.