Another Chain of computer shops (about 20 branches in 1987) turned publishing house. Notably the only game software company during the eighties that took the new copyright law quite seriously and didn't produce any unlicensed grey market ports. Topia stopped producing games with the beginning of the slow demise of the 8 bit generation.
Later they formed the chain "PC Line" with over 150 branches throughout the country at its peak. They also published a magazine called Computer Sijang (Computer Market) from 1992, which was discontinued in 1996, so that's likely around the time they went under.
Sim Jaehyeon: President
Doo Jin: Head of game development section