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 · Perspectives: First person, Third person

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.

AI: THE SOMNIUM FILES - nirvanA Initiative is an Adventure game released in 2022, priced at $39.99, with an estimated 200,000 .. 500,000 owners and a Very Positive review sentiment (86% of 3772 reviews).

16
playing now
86%
positive of 3.8k reviews
Very Positive
steam's rating (official)
200,000–500,000
owners (SteamSpy est.)
87/100
critic score (4 outlets, IGDB)
85/100
IGDB user rating (48 ratings)
4.57★
PlayStation Store rating (802 ratings)
platinum
deck/linux tier (ProtonDB)
Playable
Steam Deck (Valve)
SteamOS: Playable
$39.99
steam price (US)

16 players in-game as of 2026-10-15 04:00 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.

Trailer

AI: THE SOMNIUM FILES - nirvanA Initiative trailer thumbnail

AI: THE SOMNIUM FILES - nirvanA Initiative Story Trailer

≈112,867 YouTube results for this game's trailer search

Health check

Healthy
  • · 16 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 6% of 28,914 Adventure games in the census by review count.

Health tier since 2026-08-29

Estimated sales: 75k–170k copies

Review-multiple estimate from 3,772 total reviews — how this is computed.

Current store prices

Steam$5.99-85%
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 29 of 38 observed days (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

69142026-09-15 14:00 — 44 players2026-09-16 22:00 — 16 players2026-09-18 05:00 — 28 players2026-09-19 13:00 — 69 players2026-09-20 20:00 — 25 players2026-09-22 04:00 — 29 players2026-09-23 12:00 — 29 players2026-09-24 19:00 — 19 players2026-09-26 03:00 — 38 players2026-09-27 10:00 — 34 players2026-09-28 18:00 — 20 players2026-09-30 01:00 — 15 players2026-10-01 09:00 — 22 players2026-10-02 16:00 — 29 players2026-10-04 00:00 — 22 players2026-10-05 08:00 — 22 players2026-10-06 15:00 — 26 players2026-10-07 23:00 — 14 players2026-10-09 06:00 — 21 players2026-10-10 14:00 — 49 players2026-10-11 22:00 — 17 players2026-10-13 05:00 — 20 players2026-10-14 13:00 — 34 players2026-10-15 04:00 — 16 players
Concurrent players, hourly average, last 30 days (census samples).
35516Jul 2022Aug 2026Jul 2022 — avg 355 · peak 1,058Sep 2022 — avg 78 · peak 189Nov 2022 — avg 34 · peak 80Jan 2023 — avg 62 · peak 150Mar 2023 — avg 108 · peak 278May 2023 — avg 48 · peak 119Jul 2023 — avg 68 · peak 148Sep 2023 — avg 30 · peak 68Nov 2023 — avg 34 · peak 73Jan 2024 — avg 46 · peak 98Mar 2024 — avg 49 · peak 141May 2024 — avg 34 · peak 69Jul 2024 — avg 30 · peak 61Sep 2024 — avg 16 · peak 37Nov 2024 — avg 34 · peak 97Jan 2025 — avg 60 · peak 148Mar 2025 — avg 42 · peak 87May 2025 — avg 38 · peak 67Jul 2025 — avg 57 · peak 117Sep 2025 — avg 33 · peak 68Nov 2025 — avg 33 · peak 71Jan 2026 — avg 28 · peak 57Mar 2026 — avg 32 · peak 78May 2026 — avg 27 · peak 56Jul 2026 — avg 31 · peak 74Aug 2026 — avg 24 · peak 55
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$59.99$5.992022-06-162026-10-102022-06-16 — best price $59.992022-08-30 — best price $59.992022-11-22 — best price $47.992023-01-05 — best price $59.992023-03-16 — best price $35.992023-05-08 — best price $59.992023-08-07 — best price $29.992023-11-02 — best price $59.992023-12-18 — best price $23.992024-03-21 — best price $59.992024-06-27 — best price $23.992024-08-01 — best price $59.992024-11-27 — best price $23.992025-01-02 — best price $59.992025-03-03 — best price $17.992025-03-20 — best price $59.992025-05-23 — best price $39.992025-07-12 — best price $9.992025-09-08 — best price $39.992025-10-27 — best price $7.992026-01-05 — best price $39.992026-03-09 — best price $7.992026-05-05 — best price $39.992026-06-25 — best price $5.992026-09-05 — best price $5.992026-09-08 — best price $5.992026-09-11 — best price $5.992026-09-14 — best price $5.992026-09-17 — best price $5.992026-10-02 — best price $5.992026-10-05 — best price $5.992026-10-08 — best price $5.992026-10-10 — best price $7.99
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

109412026-06-01 — 87 pageviews2026-06-05 — 98 pageviews2026-06-09 — 75 pageviews2026-06-13 — 67 pageviews2026-06-17 — 63 pageviews2026-06-21 — 65 pageviews2026-06-25 — 59 pageviews2026-06-29 — 70 pageviews2026-07-03 — 87 pageviews2026-07-07 — 93 pageviews2026-07-11 — 72 pageviews2026-07-15 — 67 pageviews2026-07-19 — 66 pageviews2026-07-23 — 57 pageviews2026-07-27 — 79 pageviews2026-07-31 — 64 pageviews2026-08-04 — 41 pageviews2026-08-08 — 63 pageviews2026-08-12 — 49 pageviews2026-08-16 — 54 pageviews2026-08-20 — 109 pageviews2026-08-24 — 86 pageviews2026-08-28 — 62 pageviews2026-09-01 — 78 pageviews2026-09-05 — 106 pageviews2026-09-09 — 81 pageviews2026-09-13 — 96 pageviews2026-09-17 — 59 pageviews2026-09-21 — 67 pageviews2026-09-25 — 63 pageviews2026-09-29 — 53 pageviews2026-10-03 — 60 pageviews2026-10-07 — 63 pageviews2026-10-11 — 64 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

Post-launch support: 5 DLC released, first 2022-06-24, latest 2022-11-24 (Steam store data)

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.

Where its players are

Share of Steam reviews by language (top languages measured) — a proxy for where the player base lives.

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 ↗