Abiko Maro’s New Mystery RDの遠隔推理 Gets a Steam Demo in November

Japanese publisher Zakuzaku Inc. (ザクザク株式会社) has confirmed that RDの遠隔推理, a new “screenlife suspense” mystery game fully supervised by mystery writer Takemaru Abiko, will get a Steam demo in November. The demo will be playable early at the 全国エンタメまつり in Gifu on October 17-18, and the November build will mark the first time the game ships with full character voice acting. The announcement was first reported by Denfaminicogamer today, October 13, with no English outlet yet picking it up.

RDの遠隔推理 is a “screenlife suspense” mystery where the protagonist, Nozomi, investigates the disappearance of his sister Hikari from a university in distant Nagano Prefecture by browsing fictional apps (the search engine “Glome” and the social media platform “Z”) within a time limit. The game leans on real locations and TV programs in Nagano to make the web-browsing feel like an actual investigation, and the developer is calling it an “armchair detective” game in the spirit of Her Story.

Takemaru Abiko is the Japanese mystery writer known for the novels “The 8 Mansion Murders” and “Disease leading to slaughter,” and the hit 1994 visual novel かまいたちの夜 (Banshee’s Last Cry). Zakuzaku is also publishing two other games alongside RDの遠隔推理: 推しと怪異と配信と (a horror livestream adventure) and トリガー☆ハッピーチェーンソーガール (a survival horror action), with Steam wishlist pages already open for all three on the official press release.

By the numbers: Three games from one small Japanese publisher (Zakuzaku) all targeting 2026, with RDの遠隔推理 as the marquee title backed by a best-selling mystery author; the November demo lands alongside the Gifu 全国エンタメまつり early trial on October 17-18. It joins our Coming West? tracker and the Release Calendar alongside other Japan-published 2026 PC indies like Dyping Working and BUZZ or DIE.

Our read: Mystery fans who loved Abiko’s かまいたちの夜 work and the “screenlife” sub-genre (think Her Story or the Famicom Detective Club remakes) have a fresh 2026 release to watch, and a voice-acted November demo is a real commitment from a small Japanese publisher. With Switch and PS5 versions also planned, this is shaping up to be one of the more intriguing Japanese mystery games of the year.

Can you play it in English?

The Steam page is in English, and the developer plans Switch, PS5, and PC releases with English as a confirmed supported language. The November demo will launch first on Steam, with Switch and PS5 demos to follow. Full game is targeting 2026.

Edited by Kerwin Stewart, Editor-in-Chief · How we report