AI: The Somnium Files
Released Sep 2019
Play as detective Kaname Date on the case of an elusive serial killer in this thrilling, sci-fi murder mystery.
91% positive · 9,422 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to buy
Steam $19.99
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Evaluation
AI: The Somnium Files is a standalone narrative adventure game that launched on September 17, 2019 as a complete, self-contained story. It has no DLC, no season pass, and no post-launch content additions of its own. The developer's subsequent news posts on this store page are promotional in nature — announcing and releasing a sequel (AI: THE SOMNIUM FILES - nirvanA Initiative, announced July 2021) and a third entry in the series (No Sleep For Kaname Date - From AI: THE SOMNIUM FILES, announced April 2025, released July 25, 2025). These are separate games in the same franchise, not additions to this original title. The original game shipped as a finished product and has received no additional content since launch.
Evidence
Store description presents a complete, self-contained neo-noir detective story with no mention of post-launch content, DLC, or ongoing updates.
No Sleep For Kaname Date released as a standalone game. Promoted on this store page as a series continuation, not as DLC or an update to the original.
Media
Details
Developer
Publisher
Spike Chunsoft Co., Ltd.
Achievements
45
Platform
Windows
Controller
partial support
Steam Deck
Playable
Players
Single-player
About this game
In a near-future Tokyo, detective Kaname Date is on the case of a mysterious serial killer. Date must investigate crime scenes as well as dreams on the hunt for clues. From the mind of Kotaro Uchikoshi (Zero Escape series director), with character design by the Yusuke Kozaki (NO MORE HEROES, Fire Emblem series), a thrilling neo-noir detective adventure is about to unfold.
STORY
One rainy night in November, a woman's body is found at an abandoned theme park, mounted on a merry-go-round horse. She had been stabbed repeatedly, and her left eye was gouged out.
Kaname Date of the Metropolitan Police Department arrives on the scene. He recognizes the woman. Suddenly, he hears a noise from inside the merry-go-round.
He breaks into the merry-go-round's central column to find a young girl. And in her hands, she grips a bloody ice pick...
STORY
One rainy night in November, a woman's body is found at an abandoned theme park, mounted on a merry-go-round horse. She had been stabbed repeatedly, and her left eye was gouged out.
Kaname Date of the Metropolitan Police Department arrives on the scene. He recognizes the woman. Suddenly, he hears a noise from inside the merry-go-round.
He breaks into the merry-go-round's central column to find a young girl. And in her hands, she grips a bloody ice pick...
Are these done yet?
Last evaluated Jun 26, 2026
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