《無法成眠的伊達鍵 - From AI：夢境檔案》（日文原名：伊達鍵は眠らない - From AI：ソムニウムファイル）是Spike Chunsoft於2025年為Nintendo Switch/Switch 2/Steam平台推出的敘事型冒險新作，是廣受好評的《AI：夢境檔案》（AI: The Somnium Files）系列的第三部作品。延續前兩作融合科幻、懸疑與心理探索的風格，但這次焦點從前作女主角瑞希與龍木轉移回系列初代主角——警視廳警官伊達鍵（Kaname Date），呈現他在失眠與幻夢交錯中所面對的全新難解事件。

劇情設定在AI技術與人腦介面日趨發達的近未來東京，網路偶像被神秘飛碟綁架，需要破解逃脫遊戲並尋找女主的下落。透過主角伊達的左眼特殊能力進行資料收集。伊達鍵因一場不明事故長期失眠，夜晚無法入睡，日間則靠神經刺激藥物維持清醒。在助手AI機器人瞳絆的陪伴下，利用新一代「Somnium連結系統」潛入嫌疑人與受害者的潛意識中，試圖從夢境迷宮中找出真相。

操作上，延續系列特色，分為「現實調查」與「夢境探索」兩種主要模式。現實部分為互動式對話與場景搜尋，透過觀察細節、蒐集證據、訪問證人來推進劇情；夢境部分則是一種限制時間內的解謎關卡，需在不穩定、具象徵意義的場景中操作伊達與Aiba，破解各種心理機制形成的謎題。引入新的「多夢線系統」，每個夢境可能產生不同的分支與變化，讓玩家面對更多道德兩難與主觀選擇，並影響最終結局。

Switch 2的硬體效能讓本作視覺表現與演出明顯進化。夢境場景變得更具想像力與超現實感，採用類似即時渲染與手繪融合的視覺風格，讓每個夢境世界如同藝術裝置般詭異華麗。角色表情與語音同步也更自然細緻，進一步強化劇情的情感衝擊力。音樂由回歸的作曲家Keisuke Ito負責，以沉靜、神秘的氛圍曲與電子音效搭配劇情起伏，成功營造不安與沉浸的張力。

在市場評價方面，獲得極高關注與期待。發售前即登上日本與歐美多家遊戲媒體的「最期待冒險遊戲」榜單。一些搶先體驗者指出，這一代不僅劇情更成熟，對角色心理的描寫也更深刻。尤其伊達作為歷經創傷又飽受失眠折磨的刑警，他在破案過程中展現的脆弱與堅強形成強烈對比，為角色注入極高的說服力與情感牽引力。

多家評論媒體如《Famitsu》、《IGN》、《GameSpot》皆給予極正面的初評。IGN形容本作是「結合《潛龍諜影》式敘事、心理驚悚與文字冒險三者之精華」，並稱讚夢境設計富創意，挑戰玩家直覺與理解。《The Verge》則指出，它是近年少數真正試圖讓玩家進入「潛意識世界」的遊戲體驗，不僅僅是機械地破案，更是自我認識與現實質疑的過程。

玩家社群也對本作的故事深度與角色處理表示激賞，尤其伊達與夥伴的默契互動在前作打下基礎，更進一步刻劃兩者之間如同人類與靈魂般的羈絆。而其分支結局設計也讓玩家反覆探索，並在不同選擇之中發掘出潛藏的真相與人性反思。

總體而言，《無法成眠的伊達鍵 - From AI：夢境檔案》不僅是AI夢境系列的精神延續，更是敘事型遊戲在互動性與心理深度上的突破。用高度沉浸的夢境設計、層層遞進的劇情結構與令人難忘的角色塑造，成功塑造出令人難以釋手的懸疑鉅作，亦是Nintendo Switch 2在敘事冒險領域的重要代表作之一。

“Kaname Date Can’t Sleep – From AI: The Somnium Files”
(Japanese title: 伊達鍵は眠らない - From AI：ソムニウムファイル) is a narrative-driven adventure game developed by Spike Chunsoft, released in 2025 for Nintendo Switch, Switch 2, and Steam. It marks the third installment in the critically acclaimed AI: The Somnium Files series, continuing its distinctive blend of science fiction, suspense, and psychological exploration. This time, the spotlight shifts away from previous protagonists Mizuki and Ryuki, returning to the original central character — Metropolitan Police detective Kaname Date — as he navigates a new and enigmatic case entangled in insomnia and hallucinations.

Story and Setting

Set in a near-future Tokyo where AI technology and brain-computer interfaces have advanced dramatically, the story begins with a mysterious incident involving an internet idol who is abducted by a UFO. The protagonist must solve a series of escape-room-style puzzles to uncover her whereabouts. Kaname Date, plagued by chronic insomnia following an unknown accident, cannot sleep at night and relies on neural stimulants to stay awake during the day. Alongside his AI companion Aiba, he uses a next-generation “Somnium Link System” to dive into the subconscious minds of suspects and victims, navigating surreal dream worlds in search of the truth.

Gameplay

The gameplay preserves the series’ signature dual-structure design, consisting of “Reality Investigation” and “Somnium Exploration.”

• Reality segments involve interactive dialogue, scene examination, gathering clues, and interviewing witnesses to drive the narrative forward.
• Somnium segments are time-limited puzzle stages that take place in symbolic, unstable environments. Players control Date and Aiba to decode mental mechanisms and unlock secrets buried deep in the mind.

This installment introduces a new “Multi-Dreamline System,” where each dream can branch into different outcomes. These branching paths offer players moral dilemmas and subjective choices, significantly influencing the game’s final outcome.

Visuals and Performance

Thanks to the enhanced capabilities of the Switch 2, the game boasts noticeably upgraded visuals and presentation. Dream sequences are more imaginative and surreal, rendered in a visually striking style that blends real-time graphics with hand-drawn aesthetics—each Somnium environment feels like an eerie, immersive art installation. Character expressions and voice sync are more lifelike and refined, amplifying the emotional impact of the story.

The music, composed once again by Keisuke Ito, blends atmospheric, mysterious ambient pieces with electronic effects that mirror the game’s narrative beats, successfully creating a mood of unease and psychological immersion.

Critical and Community Reception

The game has garnered significant attention and anticipation. Even before release, it appeared on numerous “Most Anticipated Adventure Game” lists across Japanese and Western media. Early impressions from preview players praised the maturity of the story and the deepened psychological character portrayals. In particular, Date’s depiction as a traumatized, insomniac detective creates a powerful emotional contrast between his vulnerability and resilience, making him one of the series’ most compelling protagonists.

Major outlets such as Famitsu, IGN, and GameSpot have issued highly positive early reviews.

• IGN described the game as “a fusion of Metal Gear-style storytelling, psychological thriller tension, and text-based adventure depth,” lauding its inventive dream design that challenges player intuition.
• The Verge noted that it’s “one of the few recent games that truly attempts to immerse players in the subconscious,” not just as a procedural mystery, but as a journey of self-discovery and existential doubt.

Player communities have also praised the game’s narrative depth and character writing. The bond between Date and his AI partner Aiba — established in the earlier titles — is explored further here, evolving into a soul-like connection between human and machine. The multiple endings system encourages players to revisit key choices and uncover hidden truths and reflections on human nature.

Conclusion

“Kaname Date Can’t Sleep – From AI: The Somnium Files” is not just a spiritual successor to the AI: Somnium series but a breakthrough in narrative adventure design in terms of interactivity and psychological depth. With its deeply immersive dream mechanics, multilayered storytelling, and unforgettable character portrayals, it stands as a compelling and sophisticated mystery epic — and one of the defining narrative experiences for the Nintendo Switch 2 era.