Place 3 or more blocks of the same material or tool in a line
You will get items by making lines with 4 or more blocks
Raise the tower by completing the objectives on the left
You can drag blocks by keeping X pressed and moving in the opposite direction.
Jump onto the blocks by keeping button A pressed
Castles features the following modes:
Build the tallest tower in the kingdom
How long can you survive?
Defeat a friend by making their panel fill first