NSMine is a MineSweeper (tm) clone. It has some great features such as sound support, multiple tile sizes and user defined coloring. It was originally created by Alexander Wilkie and I ported it to Openstep/Mac OS X Server and now OS X. I have recently updated the menu structure to reflect MacOS X standards and have implemented one button mouse support (use either Control or Option + Mouse Click to simulate the right mouse button).

...NSMine.1.1.dmg

(NSMine version 1.1 is now compatible with OS X 10.2)

(Source Code is included in the download)

And here's a screenshot