Initially launched for the arcades, the title was then ported to the PC Engine Super CD-ROM² by NEC Avenue and published exclusively in Japan on 26 February 1993, featuring various additions and changes compared with the original release.

Demon's World was met with mixed response from critics, who reviewed the PC Engine Super CD-ROM² version as an import title despite being exclusive to Japan.

Demon's World is a horror-themed horizontally-scrolling run and gun game where players assume the role of two ghost hunters through ten increasingly difficult linear autoscrolling stages across various locations, some of which have a boss at the end that must be fought before progressing any further in an effort to defeat several ghosts and monsters that were unleashed upon Earth by the titular demon king as the main objective.

In all variants of the game, the final stretch takes place in a medieval setting, complete with cursed castles and dungeons infested with haunted armor, goblins and dragons.

Demon's World was released on arcades worldwide in 1989 by Taito in Japan as Horror Story, Catalina Games in North America and Toaplan across other regions.

[11] On 26 February 1993, Demon's World was ported to the PC Engine Super CD-ROM² by NEC Avenue under its original Japanese title (Horror Story) and published exclusively in Japan, featuring an arranged soundtrack using Redbook CD Audio.