Publisher Koei Tecmo and developer Gust announced that The Apothecary Diaries: The False Imperial Brother will launch worldwide on March 18, 2027, for Nintendo Switch, Nintendo Switch 2, PlayStation 5, and PC through Steam [1]. The reveal establishes the first home console adaptation based on Natsu Hyūga’s mystery books, bringing the False Imperial Brother storyline to players following earlier web novels and television adaptations [3]. Players take control of the young poison taster Maomao as she investigates palace intrigues, uncovers court secrets, and brews herbal medicine to protect her allies [1].
Supported Platforms and Hardware Formats
Koei Tecmo confirmed the worldwide rollout for four separate platforms, making the mystery adventure accessible to console players and PC users simultaneously [1]. The story originally began in 2011 as a web novel on the self-publishing website Shosetsuka ni Narou before Japanese publisher Shufunotomo acquired it for light novel serialization. Today the property counts over 57 million copies in circulation across light novels and manga volumes. The console title provides a broader interactive stage for a property that previously tested digital gaming through The Apothecary Diaries: Palace Chronicles, a browser-based simulation title released by online platform G123 in June 2026 [3].
Hardware formats differ between the two Nintendo consoles. On Nintendo Switch 2, the physical boxed edition ships as a Game-Key Card that requires an internet download to install the full software package onto local storage. The original Nintendo Switch release is download-only through the Nintendo eShop, with no boxed cartridge planned for retail stores. In addition, Koei Tecmo confirmed that save data can’t transfer between the Switch and Switch 2 versions [7].
PlayStation 5 gets physical editions in North America and Europe, while Steam handles the PC release. Developer Gust built the title alongside TOHO Games with Japanese voice acting and English interface text so global audiences can follow each imperial mystery from day one [4]. Pre-orders opened on October 21, 2026 [6].
False Imperial Brother Investigation Mechanics
Series author Natsu Hyūga conceived an original storyline set within an imperial palace inspired by Tang Dynasty China [5]. The narrative begins during Maomao’s service in the rear palace, where rumors of bizarre occurrences create unrest among court residents. Court officials report hearing a warehouse that cries during the night, witnessing clothing that turns red overnight, and encountering a faceless eunuch wandering the halls. Jinshi asks Maomao to uncover the truth behind these Five Mysteries before mass panic destabilizes court routines [6].
Maomao’s inquiry expands when a separate sequence of disturbances breaks out around an anonymous masked intruder posing as the sovereign’s sibling [6]. This conflict leads directly to the five curses threatening the imperial palace and neighboring pleasure quarters. Each dilemma forces exploration beyond city walls. Maomao gathers rare plants outside the capital to compound therapeutic draughts, which she then hands to witnesses or uses during tense interviews to coax vital testimony from tight-lipped palace guards. A notebook stores all gathered clues. Maomao organizes connected leads across that ledger, answers deduction questions to piece together conflicting motives, and decides whether to soften her findings or deliver blunt truths to settle each case [1].
Optional evidence yields deeper solutions beyond simple case resolutions [1]. Fulfilling character requests and delivering requested concoctions raises trust levels, unlocking special side stories that explore individual character relationships. Completing specific chapter goals rewards players with Completion Stamps, which unlock exclusive illustrations once a player finishes an entire set [2].
Playable Characters Beyond Maomao
Maomao is not the only playable lead. Taking direct control of Jinshi allows players to confront noble courtiers and high-ranking dignitaries who routinely refuse to acknowledge low-ranking palace servants, unlocking exclusive testimonies and private records through his rank. His segments bypass political friction that human Maomao can’t overcome during ordinary servant duties. These court interactions illuminate inner rivalries while supplying necessary documentation that ties individual palace rumors into a single overarching conspiracy [2].
Maomao also explores as a cat. Her agile feline shape scampers across elevated palace rooftops, slips through cracked lattice partitions, and reaches cramped crevices that remain entirely unreachable for human investigators walking the corridors. In this form, players quietly eavesdrop on conspirators plotting in secluded courtyards, shadow suspicious courtiers without being spotted, and retrieve discarded physical items from neglected palace corners. Every recovered item feeds the investigation [2].
Medicine preparation also shifts perspective. When brewing remedies, players choose between Luomen, Maomao’s adoptive father, and the bumbling Quack Doctor. The accompanying mini-games adjust in mechanical difficulty depending on which apothecary assists with the ingredients [2]. The story introduces new supporting cast members as well, including the court official Yanxi, voiced by Yumi Uchiyama, who manages court etiquette and reads fortunes for imperial consorts [6]. Players also meet Chenhan, voiced by Takahiro Miyamoto, a gentle patron of the Verdigris House who faces baseless accusations, and Guanyu, a traveling performer caught in local turmoil [2], [6].
Special Editions and Japanese Pricing
Koei Tecmo detailed several retail packages for Japanese consumers, establishing pricing structures across digital stores and physical storefronts. The standard Japanese release costs ¥8,580. That price converts to roughly $54 or £41, with digital pre-orders launching across Steam and the PlayStation Store on October 22, 2026, following the physical pre-order launch that began one day earlier [6].
Two physical special bundles await collectors in Japan. The Premium Box costs ¥15,510 (about $98 or £73) and bundles an original art book, a B3 cloth poster, and a themed pill case with the base game. The Japan-exclusive Special Premium Box retails for ¥25,960 (roughly $164 or £123) and includes all Premium Box items plus a book cover styled after Maomao’s outfit, an investigation notebook, and a protective case for medication logs. Western physical boxes exist for Nintendo Switch 2 and PlayStation 5, though American and European retail prices remain unannounced [6].
Digital buyers have the option of purchasing the Digital Deluxe Edition, which costs ¥10,010 (around $63 or £47) [6]. The package includes the full game along with formal attire for both lead characters, fantasy garments for Maomao, and decorative accessories designed for her feline form [2]. Owners of the base release can buy the cosmetic bundle separately for ¥1,430 (around $9 or £7) [6].
False Imperial Brother Pre-Order Bonuses
Early purchasers secure bonus supplies and cosmetics. Anyone purchasing a physical or digital copy before March 31, 2027, receives the Apothecary’s Starter Kit and the Modest Accessory Pack as complimentary early purchase bonuses [2]. The starter kit supplies herbs and compounding materials that assist with preliminary medicines during early chapters, while the accessory pack introduces cosmetic adornments for Maomao [6]. Pre-ordering digitally before March 17 adds the Apothecary’s Tasteful Accessory Pack [2].
The anime adaptation continues its run. Produced by OLM and Toho Animation, the second anime season collected five trophies at the 2026 Crunchyroll Anime Awards, earning recognition for Best Drama and Best Director [5]. Season 3 began airing on October 2, 2026, streaming weekly on Crunchyroll for North American audiences [1], [5]. In addition, TOHO Animation plans to release an original animated feature film titled The Apothecary Diaries: The Late Lady’s Treasure in Japanese theaters in December 2026 [1], [3]. A live-action television adaptation starring Mana Ashida follows in 2028 [1].
With pre-orders underway on storefronts worldwide, mystery enthusiasts have five months to prepare for Maomao’s console arrival [1], [6]. The title combines Gust’s alchemy and RPG development background with Natsu Hyūga’s palace mysteries in The Apothecary Diaries, delivering a standalone detective experience on Switch 2, Switch, PlayStation 5, and PC [1], [7].
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