AI: The Somnium Files

AI: The Somnium Files

Spike Chunsoft Co., Ltd. · September 18, 2019 · Visual Novel, Anime, Mystery, Story Rich, Detective

Buy AI: The Somnium Files from Steam at $19.99 — the cheapest of 2 stores we compare.

PC
Very Positive92% · 9,39835playing now
Best price
$19.99
lowest tracked $3.99
Steam Buy at Steam

Prices last checked

More games under $20 →More Steam deals →

Where to buy AI: The Somnium Files — official stores

Steam
Steam
Standard Edition · Steam
$19.99
Buy
Microsoft Store
Microsoft Store
Standard Edition · Microsoft Store
$19.99
Buy

AI: The Somnium Files price by region

AI: The Somnium Files costs £15.99 in the United Kingdom, $19.99 in the United States, €19.99 in Europe (EUR), $19.99 in Georgia (USD), CA$24.99 in Canada, NZ$28.99 in New Zealand, A$29.50 in Australia, R$72.50 in Brazil and zł84.99 in Poland right now.

Cheapest AI: The Somnium Files offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £15.99 £15.99 — 2
United Statesyour region $19.99 $19.99 — 2
Europe (EUR) €19.99 €19.99 — 2
Georgia (USD) $19.99 $19.99 — 2
Canada CA$24.99 CA$24.99 — 2
New Zealand NZ$28.99 NZ$28.99 — 2
Australia A$29.50 A$29.50 — 2
Brazil R$72.50 R$72.50 — 2
Poland zł84.99 zł84.99 — 2

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About AI: The Somnium Files

✦ AI summary

Investigate brutal crimes across near-future Tokyo and dive into surreal dreamscapes to uncover the truth behind a serial killer's twisted murders. From the creator of Zero Escape comes a mind-bending neo-noir detective thriller where reality and dreams blur together in a race to catch a killer.

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...

AI: The Somnium Files — game info

Platforms
Windows
Steam Deck
Playable
Player modes
Single-player
Controller
Partial controller support
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Sep 7, 2026
Fun game if you like the genre of visual novels and murder mysteries. Not a ton of game play so very laid back and chill but characters and story are fun and engaging.
1 found this helpful
Recommended Sep 5, 2026
Absolutely phenomenal game. I am *very* picky with the supernatural in my murder mystery games- games that do it poorly, in my opinion are Kathy Rain and Paranormasight. Games that do it well, are Ace Attorney and the Tangle Tower series (especially their latest game- GO PLAY MERMAID MASK, BUT BEFORE YOU DO-) Somnium Files has the tightest writing for any murder mystery game I've ever played. The characters are fun, charming- well, mostly, looking at you Ota- and I will not spoil it, but the way the game brings the more paranoramal aspects of its universe to you- the logic is solid, and therefore you aren't mad at any of the reveals- I cannot say more, you must play this game blind, it is worth enduring the really cringe pervert humor here and there. Truly, porno mags are the worst character in the series, but I still highly recommend picking it up. The sequel is also a good time but the twist just pissed me off. Writing is not nearly as tight.
1 found this helpful
Recommended Sep 5, 2026
[url=https://store.steampowered.com/curator/46290456-HunterH-Review%27s-Is-it-Worth-Playing/?appid=1144200]For more review's Click Here[/url] I had absolutely no idea what I was getting myself into with this game. The story is weird, funny, creepy and surprisingly emotional all at the same time. The characters are great, and the mystery kept me guessing right up until the end. Every time I thought I had figured something out, the game managed to throw another twist at me. The Somnium sections are probably my favorite part. Exploring people's dreams is such a strange concept, but it works really well and gives the game its own identity. The humor is also way better than I expected. Some of the jokes are completely ridiculous, but somehow they fit perfectly with the characters. The only downside is that the pacing can be a little slow in places, and some of the dream puzzles can get confusing. Still, if you like mystery games with great characters and completely unhinged stories, definitely give this a try. 7/10 — Came for the murder mystery, stayed for the talking eyeball.
1 found this helpful
Recommended Sep 7, 2026
Hirotte Kudasai
Recommended Sep 6, 2026
Very funny character interactions, clever branching story + goated ost
Recommended Sep 5, 2026
Liked the story. It was very non-linear, and the branching storylines serve to build the grand narrative pretty well. What I did not like were the "puzzles," which ultimately were trial-and-error. Since the Somniums are illogical, there isn't any way to get the answers correctly in one go. Also, some of the flavor text are a waste of time. You click on a "Sofa," and Date just says "A sofa."

Community reviews

—

0 reviews

Sign in to write a review.

No reviews yet. Be the first to review this game.

More like AI: The Somnium Files

News

All news →
Transport Fever 3 price: which edition to buy on launch dayPC

Transport Fever 3 price: which edition to buy on launch day

Transport Fever 3 is out today. The Transport Fever 3 price splits three ways, the loyalty discount has a fortnight-long fuse, and our record shows what the older game really costs.

Sep 29, 2026
No Man's Sky price: how low it gets and when to buyPC

No Man's Sky price: how low it gets and when to buy

The No Man's Sky price has come a long way down since 2016, and the game is on PC Game Pass too. Our tracked 12-month low, the regional key gap, and what to actually pay.

Sep 29, 2026
Sekiro cheap: what our price record shows, and what to avoidDeals

Sekiro cheap: what our price record shows, and what to avoid

Search Sekiro cheap and the results are keyshop listings, not a store discount. Our three-month price record explains the gap, and why so few live offers changes the advice.

Sep 28, 2026
System Shock 2 Remaster free on Epic from 1 OctoberFreebies

System Shock 2 Remaster free on Epic from 1 October

System Shock 2 Remaster free on Epic from 1 to 8 October, alongside BURIED STARS. Our price record shows why its floor has not moved in three months, and why waiting beats buying this week.

Sep 28, 2026
Dead Island 2 cheap: which edition, and what the price doesPC

Dead Island 2 cheap: which edition, and what the price does

Dead Island 2 cheap used to mean under a dollar. Our price record shows the floor has roughly doubled since September - here is which edition to buy, and the one that is a trap.

Sep 27, 2026
Steam Autumn Sale 2026: the games that cannot be discountedDeals

Steam Autumn Sale 2026: the games that cannot be discounted

The Steam Autumn Sale 2026 runs 1-8 October, but Valve's own rules bar every September release from it. Which games are locked out, and what our record says about the two biggest.

Sep 27, 2026
Euro Truck Simulator 2 bundle: which one to buy, what to skipBundles

Euro Truck Simulator 2 bundle: which one to buy, what to skip

The base game has sat near its floor for three months. The Euro Truck Simulator 2 bundle you buy alongside it is the purchase that actually costs you money — and the names mislead.

Sep 26, 2026
Noita Steam key: where to buy, and what the price doesDeals

Noita Steam key: where to buy, and what the price does

A Noita Steam key comes from eleven sellers we track and only one is DRM-free. What our daily price record says about when it is actually cheap.

Sep 25, 2026

Top games right now

All rankings →
  1. 1Counter-Strike 2Free
  2. 2Dota 2Free
  3. 3PUBG: BATTLEGROUNDSFree
  4. 4Grand Theft Auto V Legacy—
  5. 5Terraria$2.20
  6. 6Rust$26.10
  7. 7Team Fortress 2Free
  8. 8Black Myth: Wukong$35.94
  9. 9HELLDIVERS™ 2$26.96
  10. 10ELDEN RING$52.89
  11. 11Apex Legends™Free
  12. 12Left 4 Dead 2$9.99
  13. 13Stardew Valley$14.75
  14. 14Wallpaper Engine$3.99
  15. 15Euro Truck Simulator 2$4.99
  16. 16Dead by Daylight$10.42
  17. 17Red Dead Redemption 2$10.54
  18. 18Baldur's Gate 3$41.99
  19. 19Phasmophobia$18.29
  20. 20War ThunderFree
  21. 21Call of Duty®—
  22. 22ARK: Survival Evolved$14.24
  23. 23Among Us$3.04
  24. 24The Forest$19.99