The Width and Height sliders control how many pathways the maze should have. The lower the values for width and height, the more paths you will get. The same happens if you increase the number of pieces in the Width and Height Pieces fields. The result won't really look like a maze unless the width and height are equal.

If you want to use it in a pattern, you can make the maze tileable by checking this check-button.

You can specify a seed for the random number generator, or ask the program to generate one for you. Unless you need to later reproduce exactly the same maze, you might as well have the program do it.

You can choose between two algorithms for maze, Depth First and Prim's Algorithm. Only a computer scientist can tell the difference between them.