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).
What's new in this version:
Mac OS X 10.2 compatibility