I kinda like minesweeper. But it is one of many small games included in KDE games. I can set the max size to 50 x 50 with at least 100 mines. Number of mines is 3 digits, so it may go to 999, don't know.
i5 3570k, ASRock z77 Extreme 4, 8 Gb Ripjaws 1600, Antec 430w psu, HVR 1600 tv tuner, custom case- marble top, oak face. Carver & DCM Time Window sound system. Mint 14 KDE.