Demons' Night Fever Gameplay Trailer Shows Speedrunning Simulation RPG
The trailer gives the first extended look at Niikawa's first original game since leaving Nippon Ichi Software, confirming a genre mashup built around repeated death and speedrunning.
Reporting from 1 sources: Anime News Network.
Arc System Works released a new gameplay trailer for Demons' Night Fever, the new game from Disgaea creator Sōhei Niikawa and his studio SuperNiche. The game is a "Raising Speedrunning Simulation RPG" where dying makes the player stronger. It launches in 2026 on Nintendo Switch, PS5, and PC via Steam.
The trailer, shown during the Arc System Works Showcase 2026 livestream on June 24, follows the reveal of the game earlier this year. The story centers on the devil Giga Super Death, who is turned into a baby just before killing God, and his pact with the gloomy young man Killshiro Katanaka. The game's genre is described as a "Raising Speedrunning Simulation RPG," with the core loop being that the more the player dies, the stronger the character becomes. Arc System Works is publishing the title.
Niikawa founded SuperNiche in March 2025 after resigning as president of Nippon Ichi Software in 2022. The game features music by Tatsuya Yano, character designs by Yuji Himukai, and story and scenario by Roman Kitayama. The voice cast includes Yūya Hirose as Killshiro, Kaori Mizuhashi as Giga Super Death, Sayumi Suzushiro as Mary Haley, and Nobuyuki Hiyama as God.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.