Emerald Mine

Emerald Mine is a 1987 puzzle video game developed and published for Amiga and Atari ST by Kingsoft. The series follows mines filled with various gems, such as emeralds. It is a Boulder Dash clone in which the player completes levels by collecting sufficient gems before reaching the exit. Emerald Mine was Kingsoft's best-selling title with reviews generally favorable, and spawned several sequels. It was also Volker Wertich's, one of the game's designers, most successful game until The Settlers in 1993, of which he was also the creator.