They primarily made games for the Daewoo Zemmix, but because it was an MSX computer made to look and be played like a game console, they work on other MSX computers as well.

[3] Korea did not have a copyright law for computer programs until July 1987.

[4] Because of that, many companies, including Zemina, sold unauthorized copies of foreign titles with their own copyright hacked in.

In 1992, they engaged in developing exclusive games for the Master System and Famicom consoles,[5] but not all of them were released.

They even released Nemesis 3: The Eve of Destruction under official license from Konami under the title Salamander II - all the while still selling multi game cartridges full of unlicensed copies of older Konami games.