Arc System Works Releases Demons Night Fever for PS5, Switch, and Steam
Producer Sohei Niikawa said on X that he borrowed 20 million yen from a bank without telling his wife to cover a development budget shortfall, tying the game's commercial performance to a personal debt.
Key Facts
- Arc System Works released Demons Night Fever on October 22, 2026, for PlayStation 5, Nintendo Switch, and Steam.
- Demons Night Fever costs 4,950 yen including tax for both packaged and download versions.
- Producer Sohei Niikawa posted on X that he borrowed 20 million yen from a bank without telling his wife to cover a development budget shortfall.
- A release campaign runs until 23:59 on October 30, 2026, with seven autographed colored papers from the main cast.
- Demons Night Fever is rated CERO B and supports one player offline.
Reporting from 4 sources: 4Gamer.net, Denfaminicogamer, Inside, Game Spark.
Arc System Works released the simulation RPG Demons Night Fever on October 22, 2026, for PlayStation 5, Nintendo Switch, and Steam. The game costs 4,950 yen including tax for both packaged and download versions, and it supports one player offline. Developer Drecom and publisher Arc System Works call the genre a training RTA simulation RPG built on the concept of enjoying evil. Battles center on the Servant Overwork System, where players blow up their own minions with Kill Skills and Sacrifices to clear enemies. At the hideout, five actions (Evil Deeds, Plunder, Recruitment, Treasure Hunting, and Vice Sublimation) earn Vice Points, but every action advances a turn. The story follows the evil god Gigasugoideath, who turns into a baby, and Kyoshiro Jaryuin, a young man who hates the world. Each chapter boss defeated changes the scenario, switching to situations such as becoming a monster to beat a sentai hero or a witch to beat magical girls.
The seven names form the cast whose autographed colored paper is being given away: a release campaign runs from October 22 to 23:59 on October 30, with one winner per cast member, seven winners total. Entry is a follow and repost of the eligible post from the Arc System Works official X account (@ARCSY_PR), and winners cannot pick whose paper they get. Character design is by Yuji Himukai and the score is by Tatsuya Yano; both joined producer Sohei Niikawa in publishing release comments. Niikawa also writes under the pen name Roman Kitayama. He was president of Nippon Ichi Software, where he worked on the Marl Kingdom series (Rhapsody: A Musical Adventure), Disgaea, and Hayarigami, and left in 2022 before founding Super Nichi LLC in April 2025. The rights notice reads (c)SuperNiche LLC / Drecom Co., Ltd. / ARC SYSTEM WORKS. The game ships in Japanese, English, Korean, Traditional and Simplified Chinese, and French, with a CERO B rating, and its packaged version is listed for Switch and PS5.
Synthesized by Yomimono from the 4 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.
Sources
- 4Gamer.net 「悪を楽しむ」をコンセプトに掲げたシミュレーションRPG「デモンズナイトフィーバー」，本日発売
- Denfaminicogamer 敵も味方も“キル”しまくる新作シミュレーションRPG『デモンズナイトフィーバー』が本日10月22日より発売。怪人になってヒーローを倒し、魔女になって魔法少女をぶちのめす
- Inside 「ディスガイアと同じものは作りたくない」元日本一ソフトウェア社長・新川宗平氏が語る、SRPGの常識を覆す『デモンズナイトフィーバー』の挑戦【インタビュー】
- Game Spark 「ディスガイアと同じものは作りたくない」元日本一ソフトウェア社長・新川宗平氏が語る、SRPGの常識を覆す『デモンズナイトフィーバー』の挑戦【インタビュー】