City of Sin - The Nocturne Files

City of Sin - The Nocturne Files

DoAdventures · January 3, 2026 · Sexual Content, Female Protagonist, Casual, Choices Matter, Text-Based

Buy City of Sin - The Nocturne Files from Steam at $8.02 — the cheapest of 1 store we compare.

PC
Mostly Positive71% · 35 📈 Making a comeback 80%
Best price 49 All-time low
$8.02-27%
$10.99⭐ lowest tracked
Steam Buy at Steam

Prices last checked

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Where to buy City of Sin - The Nocturne Files — official stores

Steam
Steam
Standard Edition · Steam
-27%
$8.02
$10.99
Buy

City of Sin - The Nocturne Files price by region

City of Sin - The Nocturne Files costs £6.78 in the United Kingdom, €7.87 in Europe (EUR), $8.02 in the United States, $8.02 in Georgia (USD), CA$10.21 in Canada, A$11.86 in Australia, NZ$11.89 in New Zealand, R$26.12 in Brazil and zł36.49 in Poland right now.

Cheapest City of Sin - The Nocturne Files offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £6.78 −27% £6.78 — 1
Europe (EUR) €7.87 −27% €7.87 — 1
United Statesyour region $8.02 −27% $8.02 — 1
Georgia (USD) $8.02 −27% $8.02 — 1
Canada CA$10.21 −27% CA$10.21 — 1
Australia A$11.86 −27% A$11.86 — 1
New Zealand NZ$11.89 −27% NZ$11.89 — 1
Brazil R$26.12 −27% R$26.12 — 1
Poland zł36.49 −27% zł36.49 — 1

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 City of Sin - The Nocturne Files

In a city where power is measured in secrets, Kate Adler is no stranger to deception.Your Story, Your Choices, Your GameplayA sharp-witted investigator with a talent for navigating lies, she's handed a rare lead, an invitation to Nocturne, the clandestine club where the elite shed their masks and morality.But Nocturne is just the beginning.What starts as a simple surveillance job unravels into a deeper conspiracy, missing girls, falsified identities, and a city stitched together by corruption. From neon-lit penthouses to sewer tunnels, Kate must follow the clues through every layer of society’s rot.Every lead is a choice. Every truth, a risk.And the deeper she digs, the more Kate realises: she might not be the hunter after all.City of Sin – The Nocturne Files is a choice-driven visual novel that blends investigative gameplay with narrative branching.
You’ll uncover clues, question motives, and decide who Kate can trust as you navigate a world where every decision has weight.Gameplay Overview🔹 Choice-Driven Storytelling: AVN branching dialogue options and player decisions that shape Kate’s path and relationships.🔹 Multiple Endings: Outcomes vary based on your choices, from investigative success to moral downfall.🔹 3D Visuals: High-quality DAZ renders and immersive lighting that bring each environment and character to life.🔹 Interactive Exploration: Investigate scenes, follow leads, and uncover hidden truths through narrative choices.🔹 Mature, Emotional Themes: Power, manipulation, desire, and consequence are explored through adult storytelling.🔹 Episodic Expansion: Regular free updates continue Kate’s investigation and expand existing routes no paid DLC or hidden content.Summary
  • Genre: Narrative / Visual Novel / Mystery
  • Themes: Investigation, Corruption, Adult Choices
  • Mode: Single-player
  • Content Updates: Free episodic expansions
Ongoing Support & ContentThis release includes all currently playable chapters and major branching routes.Future updates will add new episodes, scenes, and endings all included with your purchase at no additional cost.No microtransactions, no paywalls, just an expanding world shaped by your choices.

City of Sin - The Nocturne Files — game info

Platforms
Windows, macOS, Linux / SteamOS
Steam Deck
Playable
Player modes
Single-player
PC Game Pass
Not included
More games like this:Mac gamesLinux games

What Steam players say

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

Not recommended Jun 24, 2026
Visually, this was stunning. Narratively, it was a mess. I couldn't make any sense out of the story. The game lingered on the MC getting up in the morning, getting undressed, going to the bathroom, getting a shower, getting dressed... which is all fine and somewhat pretty, but it did it multiple times, taking up a lot of needless time with pointlessly. That would just be mildly annoying if the game hadn't then appeared to quickly skip entire scenes of dialogue that might have something to do with the actual plot. There is long descriptive narrative, entirely unneeded in a visual story and poorly formatted and confusing dialogue. Finally, in a huge personal pet peeve, later scenes refer to events from choices I did not make rather than from the choices I did. In the end, I had to abandon this game. Cannot recommend.
9 found this helpful
Recommended Aug 29, 2026
I can see why this game garners a "mixed" review. One thing I have learned about the developer, DoAdventures, is that they creates games that require multiple playthroughs to see all of the possibilities. If you only choose one path and one playthrough, you miss a good deal of content. The visuals are good, the animations are limited but, good when present. My one complaint is that is leads up to the masquerade party and then suddenly stopped. Please release more content because I am ready for the party.
1 found this helpful
Recommended Jun 15, 2026
so good if u are for lesbian this wow
1 found this helpful
Recommended May 25, 2026
An engaging adult game where you have choices on your characters behavior, gender preferences, and adult partners.
1 found this helpful
Recommended May 24, 2026
A very entertaining story with loads of erotic content. The narrative and dialogues are witty and credible. It's a low cost game worth checking out.
1 found this helpful
Not recommended Aug 18, 2026
There is not that much good in this VN - The character quality is bad. They have really cartoonish style and there is no detail on the skin and all females look like barbies. - Protagonist looks good in the AI video clips as the AI adds detail which isnt found in the rest of the visual novel - VN are about the story and it feels like this visual novel is only about sex or "sin". It had been way more interesting if the VN started with prologue that let say the protagonist had a friend who somehow managed to bring the protagonist to such club. Lets say she was helping male friend who needed female attachment for deal or something and the protagonist then were introduced to temptations. - I understand that its VN about sin but the hooks in female bartender character asses are just so stupid. Sorry. I could have swallowed it if it was twist of story where it was not that public and it was some sort of humiliation punishment. -- if used the prologue idea it could be the opposed business man (perhaps the club owner) some paid toy which could lead to another story twist. - Most of these 3D VNs scale male ♥♥♥♥♥ to stupid sizes but in this novel there is female athelete which is like she ha…

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