Year Name Developer Machines
1987 Emerald Mine '
Maze / Digging, Not Classified, | 1P, ???, 		Kingsoft c64 a500
1988 Emerald Mine II '
Maze / Digging, Not Classified, | 2P sim, ???, 		Kingsoft c64 a500
1990 Emerald Mine 3 Professional '
Maze / Digging, | 2P sim, 		Kingsoft a500
1994 Emerald Mines '
Maze / Digging, Not Classified, | 2P sim, ???, 		Almathera a500 cd32