What is "hellnight"

Hellnight, known as (Dark Messiah ダークメサイア Dākumesaia) in Japan, is a first-person survival horror video game developed and published by Atlus Co. in collaboration with Konami in 1998. The game's popularity was low, possibly because it wasn't released outside Japan and Europe & was not released in the UK, and received little media attention. However, the game did get a small cult following due to the increasing popularity of horror games in recent years.