The Game Census
AI: THE SOMNIUM FILES - nirvanA Initiative cover art

AI: THE SOMNIUM FILES - nirvanA Initiative

Spike Chunsoft Co., Ltd. · 2022-06-24

SteamPlayStation StoreAmazonMicrosoft Store

Adventure

Modes: Single player

Releases: Jun 23, 2022 (PC (Microsoft Windows)), Jun 24, 2022 (Xbox One), Jun 24, 2022 (PlayStation 4), Jun 24, 2022 (Nintendo Switch)

Special Agents Mizuki and Ryuki, along with their AI partners Aiba and Tama, are tasked to solve the bizarre Half Body serial killings in this sequel to the critically acclaimed AI: THE SOMNIUM FILES.

19
playing now
86%
positive of 3.8k reviews
Very Positive
steam rating
200,000–500,000
owners (SteamSpy est.)
87/100
critic score (4 outlets, IGDB)
85/100
IGDB user rating (48 ratings)
platinum
deck/linux tier (ProtonDB)
$39.99
steam price (US)

19 players in-game as of 2026-08-30 03:00 UTC (census sample)

AI: The Somnium Files – Nirvana Initiative is a 2022 visual novel adventure video game developed and published by Spike Chunsoft. It is a sequel to AI: The Somnium Files (2019) and follows an older Mizuki Date alongside a new playable protagonist Kuruto Ryuki as they investigate the "Half-Body Murders". Gameplay is presented in both visual novel format and third-person exploration for dream investigation sequences.

Health check

Healthy
  • · 19 players in-game at the last census sample.
  • · 237 reviews in the last 8 weeks (~30/week).
  • · Review velocity down 29% vs the prior 8 weeks.
  • · Top 15% of 11,362 Adventure games in the census by review count.

Health tier since 2026-08-29

Estimated sales: 75k–169k copies

Review-multiple estimate from 3,765 total reviews — how this is computed.

Current store prices

Microsoft Store$7.99-80%

Deal snapshots via CheapShark, refreshed daily.

All-time low: $5.99 at Steam (2026-06-04)via IsThereAnyDeal

12-month high $39.99 · on sale 9 of 18 observed days · $2.00 above the all-time low (census price snapshots)

Review momentum

PositiveNegative
58558520222026Week of 2022-06-01: 462 positiveWeek of 2022-06-01: 43 negativeWeek of 2022-07-01: 585 positiveWeek of 2022-07-01: 57 negativeWeek of 2022-08-01: 100 positiveWeek of 2022-08-01: 17 negativeWeek of 2022-09-01: 68 positiveWeek of 2022-09-01: 15 negativeWeek of 2022-10-01: 50 positiveWeek of 2022-10-01: 7 negativeWeek of 2022-11-01: 121 positiveWeek of 2022-11-01: 13 negativeWeek of 2022-12-01: 53 positiveWeek of 2022-12-01: 11 negativeWeek of 2023-01-01: 81 positiveWeek of 2023-01-01: 10 negativeWeek of 2023-02-01: 99 positiveWeek of 2023-02-01: 11 negativeWeek of 2023-03-01: 132 positiveWeek of 2023-03-01: 30 negativeWeek of 2023-04-01: 53 positiveWeek of 2023-04-01: 6 negativeWeek of 2023-05-01: 65 positiveWeek of 2023-05-01: 9 negativeWeek of 2023-06-01: 33 positiveWeek of 2023-06-01: 5 negativeWeek of 2023-07-01: 75 positiveWeek of 2023-07-01: 12 negativeWeek of 2023-08-01: 59 positiveWeek of 2023-08-01: 9 negativeWeek of 2023-09-01: 39 positiveWeek of 2023-09-01: 5 negativeWeek of 2023-10-01: 25 positiveWeek of 2023-10-01: 5 negativeWeek of 2023-11-01: 43 positiveWeek of 2023-11-01: 9 negativeWeek of 2023-12-01: 43 positiveWeek of 2023-12-01: 6 negativeWeek of 2024-01-01: 48 positiveWeek of 2024-01-01: 6 negativeWeek of 2024-02-01: 21 positiveWeek of 2024-02-01: 6 negativeWeek of 2024-03-01: 42 positiveWeek of 2024-03-01: 11 negativeWeek of 2024-04-01: 36 positiveWeek of 2024-04-01: 6 negativeWeek of 2024-05-01: 36 positiveWeek of 2024-05-01: 5 negativeWeek of 2024-06-01: 22 positiveWeek of 2024-06-01: 3 negativeWeek of 2024-07-01: 24 positiveWeek of 2024-07-01: 7 negativeWeek of 2024-08-01: 22 positiveWeek of 2024-08-01: 7 negativeWeek of 2024-09-01: 12 positiveWeek of 2024-09-01: 6 negativeWeek of 2024-10-01: 14 positiveWeek of 2024-10-01: 6 negativeWeek of 2024-11-01: 33 positiveWeek of 2024-11-01: 11 negativeWeek of 2024-12-01: 33 positiveWeek of 2024-12-01: 5 negativeWeek of 2025-01-01: 74 positiveWeek of 2025-01-01: 17 negativeWeek of 2025-02-01: 60 positiveWeek of 2025-02-01: 15 negativeWeek of 2025-03-01: 51 positiveWeek of 2025-03-01: 10 negativeWeek of 2025-04-01: 32 positiveWeek of 2025-04-01: 4 negativeWeek of 2025-05-01: 36 positiveWeek of 2025-05-01: 9 negativeWeek of 2025-06-01: 30 positiveWeek of 2025-06-01: 5 negativeWeek of 2025-07-01: 48 positiveWeek of 2025-07-01: 11 negativeWeek of 2025-08-01: 44 positiveWeek of 2025-08-01: 11 negativeWeek of 2025-09-01: 38 positiveWeek of 2025-09-01: 12 negativeWeek of 2025-10-01: 19 positiveWeek of 2025-10-01: 7 negativeWeek of 2025-11-01: 22 positiveWeek of 2025-11-01: 6 negativeWeek of 2025-12-01: 26 positiveWeek of 2025-12-01: 2 negativeWeek of 2026-01-01: 15 positiveWeek of 2026-01-01: 3 negativeWeek of 2026-02-01: 25 positiveWeek of 2026-02-01: 6 negativeWeek of 2026-03-01: 29 positiveWeek of 2026-03-01: 4 negativeWeek of 2026-04-01: 34 positiveWeek of 2026-04-01: 5 negativeWeek of 2026-05-01: 18 positiveWeek of 2026-05-01: 2 negativeWeek of 2026-06-01: 32 positiveWeek of 2026-06-01: 5 negativeWeek of 2026-07-01: 27 positiveWeek of 2026-07-01: 4 negativeWeek of 2026-08-01: 20 positiveWeek of 2026-08-01: 4 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

50112026-08-07 00:00 — 23 players2026-08-07 08:00 — 19 players2026-08-07 16:00 — 24 players2026-08-08 00:00 — 22 players2026-08-08 08:00 — 25 players2026-08-08 16:00 — 36 players2026-08-09 00:00 — 28 players2026-08-09 08:00 — 36 players2026-08-09 16:00 — 43 players2026-08-10 00:00 — 34 players2026-08-10 08:00 — 22 players2026-08-10 16:00 — 39 players2026-08-11 00:00 — 24 players2026-08-11 08:00 — 29 players2026-08-11 17:00 — 29 players2026-08-13 00:00 — 24 players2026-08-14 08:00 — 15 players2026-08-15 15:00 — 39 players2026-08-16 23:00 — 29 players2026-08-18 07:00 — 15 players2026-08-19 14:00 — 30 players2026-08-20 22:00 — 19 players2026-08-22 05:00 — 16 players2026-08-23 13:00 — 43 players2026-08-24 21:00 — 16 players2026-08-26 05:00 — 12 players2026-08-27 13:00 — 27 players2026-08-28 20:00 — 14 players2026-08-30 03:00 — 19 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$59.99$5.992022-06-162026-08-292022-06-16 — best price $59.992022-08-27 — best price $47.992022-09-15 — best price $47.992022-11-22 — best price $47.992022-12-22 — best price $41.992023-02-16 — best price $29.992023-03-16 — best price $35.992023-04-27 — best price $29.992023-06-29 — best price $23.992023-08-07 — best price $29.992023-10-26 — best price $29.992023-11-21 — best price $23.992023-12-18 — best price $23.992024-03-07 — best price $17.992024-04-25 — best price $23.992024-06-27 — best price $23.992024-07-25 — best price $23.992024-10-21 — best price $17.992024-11-27 — best price $23.992024-12-19 — best price $11.992025-01-16 — best price $8.992025-03-03 — best price $17.992025-03-13 — best price $14.992025-04-25 — best price $17.992025-05-23 — best price $39.992025-07-10 — best price $39.992025-07-26 — best price $39.992025-09-08 — best price $39.992025-10-06 — best price $39.992025-11-03 — best price $39.992026-01-05 — best price $39.992026-02-06 — best price $39.992026-03-26 — best price $39.992026-05-05 — best price $39.992026-06-11 — best price $39.992026-07-09 — best price $39.992026-08-29 — best price $7.99
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

143412026-06-01 — 87 pageviews2026-06-04 — 87 pageviews2026-06-07 — 91 pageviews2026-06-10 — 74 pageviews2026-06-13 — 67 pageviews2026-06-16 — 75 pageviews2026-06-19 — 68 pageviews2026-06-22 — 80 pageviews2026-06-25 — 59 pageviews2026-06-28 — 91 pageviews2026-07-01 — 48 pageviews2026-07-04 — 62 pageviews2026-07-07 — 93 pageviews2026-07-10 — 55 pageviews2026-07-13 — 54 pageviews2026-07-16 — 54 pageviews2026-07-19 — 66 pageviews2026-07-22 — 60 pageviews2026-07-25 — 57 pageviews2026-07-28 — 74 pageviews2026-07-31 — 64 pageviews2026-08-03 — 69 pageviews2026-08-06 — 46 pageviews2026-08-09 — 74 pageviews2026-08-12 — 49 pageviews2026-08-15 — 52 pageviews2026-08-18 — 55 pageviews2026-08-21 — 63 pageviews2026-08-24 — 86 pageviews2026-08-27 — 81 pageviews2026-08-29 — 72 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Completion

49
achievements tracked
79.3%
earned "Determination"
50.3%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsFull controller supportSingle-playerSteam AchievementsFull controller supportSteam Trading CardsDualShock Controller SupportDualSense Controller SupportSteam CloudFamily Sharing5 DLC

3 supported languages: English, Japanese, Simplified Chinese

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)2,46826%49

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Player tags

NoirAnimeCrimeSci-fiMysteryAdventureDetectiveConspiracyFuturisticIlluminati

Census log

Computed from census-recorded observations only — dates are observation dates.

Players also track

Star Control®: OriginsDon't Knock TwiceImmortal: UnchainedOmensight: Definitive EditionPLANET ALPHAQuern - Undying ThoughtsForgotton AnneBlacksad: Under the Skin

Similarity via IGDB.

Official site ↗Wikipedia ↗