GEOS 128 MahJong VDC by Irv Cobb (VDC Upgrade by J. Robbins) is a game for the Commodore 128, specifically for the 80 column mode of GEOS 128.  I believe you need the extra 64k of video memory in your 128 to run this, at least I had to configure VICE that way to get it to run.

The object of the game is to remove all the tiles from the board as quickly as possible by matching up tiles that aren't blocked in on all four sides.