Philko Corporation was an arcade game developer, founded on July 30, 1985 and closed in 1993, headquartered at Jongro-gu, Seoul, South Korea. At the time of the company's closure, it had ceased developing games in 1991 and switched to construction industry under the name of On-Gok". Some of their arcade games appears to be loosely based on the Sega System 16B hardware platform, a platform that has anti-bootlegging suicide batteries integrated on them.