The dungeon crawler Labyrinth Of The Demon King has been released:

Labyrinth of the Demon King - Official Launch Trailer

A first person survival horror game with brutal melee combat, set in a world inspired by feudal Japan. Venture through the Labyrinth Of The Demon King, solving puzzles and fighting terrifying monsters, in an epic quest to track down the demon who betrayed your lord and end its' life. Featuring PS1-style retro graphics, complete with dither filters and loading screen doors.

Thanks Couchpotato!