PCGame

AI: THE SOMNIUM FILES - nirvanA Initiative

Sci-fi detective visual novel investigating a series of half-body murders

Spike Chunsoft Co., Ltd. · Released Jun 24, 2022

Adventure

Reviews
Very Positive
86% of 3,763
Recent reviews
Mostly Positive
73% of 26 in 30 days
Players
17
daily peak, Nov 7, 2026
Steam Deck
Playable
Last update on Steam
3 years ago
Nov 24, 2022
Minimum PC
GTX 460
4 GB RAM · 20 GB disk
Full requirements

What is AI: THE SOMNIUM FILES - nirvanA Initiative?

This sci-fi detective visual novel follows agents Mizuki and Ryuki and their AI partners, Aiba and Tama. You read dialogue and investigate a series of half-body murders, beginning with a corpse whose missing half appears six years later without decaying.

For you if...

  • +you enjoy science fiction mysteries driven by dialogue
  • +you like puzzles mixed into detective stories
  • +you appreciate oddball humor alongside murder investigations

Not for you if...

  • −you prefer action to reading and investigating
  • −you want a grounded mystery without science fiction
  • −you dislike crude jokes during serious scenes

What players say

86% of 3,763 reviews are positive · 73% of 26 in the last 30 days

Players praise the revised Somnium puzzles, the mystery's twists, and the AI partners' banter. Many find the later plot convoluted or less satisfying than the first game's, while some criticize the pacing and treatment of returning characters.

Players over time

▼ -16% vs a month ago

Players online on Steam, one sample a day.

Highest since Sep 2026: 39 players on Sep 26, 2026.

Show the data
DayPlayers
Nov 7, 202617
Nov 6, 202620
Nov 5, 202610
Nov 4, 202614
Nov 3, 202618
Nov 2, 202614
Nov 1, 202638
Oct 31, 202630
Oct 30, 20267
Oct 29, 20266
Oct 28, 202611
Oct 27, 202612
Oct 26, 202617
Oct 25, 202623
Oct 24, 202620
Oct 23, 202622
Oct 22, 202624
Oct 21, 202617
Oct 20, 202618
Oct 18, 202618
Oct 17, 202625
Oct 16, 202621
Oct 15, 202616
Oct 14, 202615
Oct 13, 202628
Oct 11, 202638
Oct 10, 202622
Oct 9, 202632
Oct 8, 202624
Oct 7, 202623
Oct 6, 202621
Oct 4, 202629
Oct 3, 202628
Oct 2, 202617
Oct 1, 202614
Sep 30, 202616
Sep 29, 202623
Sep 27, 202639
Sep 26, 202639
Sep 25, 202629
Sep 24, 202621
Sep 23, 202625
Sep 23, 202617
Sep 22, 202619

How many players finish AI: THE SOMNIUM FILES - nirvanA Initiative?

65% of Steam players have unlocked «Komeji and Shoma END», the achievement for finishing the main story.

Share of everyone who owns the game on Steam, including those who barely played it. Updated weekly.

Screenshots and trailer

AI: THE SOMNIUM FILES - nirvanA Initiative screenshot 1

AI: THE SOMNIUM FILES - nirvanA Initiative system requirements

Minimum: GTX 460, 4 GB RAM, 20 GB of disk space.

As published by the developer.

Can my PC run AI: THE SOMNIUM FILES - nirvanA Initiative?

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Minimum

OS
Windows 10 64-bit
Processor
Intel Core i7-3770 @ 3.40 GHz or better
Graphics
NVIDIA@ GeForce@ GTX 460 or better
Memory
4 GB RAM
Storage
20 GB available space
DirectX
Version 11
Notes
2 GB VRAM

Recommended

OS
Windows 10 64-bit
Processor
Intel Core i7-3770 @ 3.40 GHz or better
Graphics
GeForce RTX 3060
Memory
8 GB RAM
Storage
20 GB available space
DirectX
Version 11

Does AI: THE SOMNIUM FILES - nirvanA Initiative have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does AI: THE SOMNIUM FILES - nirvanA Initiative run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • The launcher or setup tool may need the touchscreen or virtual keyboard
  • The native resolution is not the default one
  • All functionality is accessible with the default controller configuration
  • Shows Steam Deck controller icons
  • In-game text is legible on Steam Deck
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Full controller support
Platforms
Windows
Achievements
49
Steam features
Cloud saves, Family Sharing, Trading cards
Languages
Full audio: English, Japanese. Text only: Simplified Chinese, Traditional Chinese.

Does AI: THE SOMNIUM FILES - nirvanA Initiative use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 25, 2026. How to filter AI games on Steam

Tags

Recent updates

5 DLC available.

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