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Phantom: Hidden Sins

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Phantom: Hidden Sins screenshot 1
Phantom Demo Trailer trailerWatch trailer on Steam ↗

Phantom: Hidden Sins

Prioplot Games · Published by Prioplot Games

Content notice: Throughout the game's storyline, the theme of crime is explored; the various crimes investigated by the detectives may involve drug trafficking, serial killings, prostitution, and other violent crimes. This theme is primarily conveyed through dialogue and the plot, without any explicit visual depictions.

Last updated 28 Sept 2026

As an independent police consultant, you're pulled into the hunt for a serial killer leaving cryptographic ciphers. Play as a detective, analyze crime scenes, and master real decryption methods. Your choices determine if you catch the killer and how many lives are saved.

Free to PlayComing SoonESRB rpm1 DLC available ↗

Free

View on Steam

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Adventure, Indie · More free games

About this game

Classic detective thriller with twisted plot and unpredictable turns will never go out of style. PHANTOM is a noir visual novel that combines complex puzzles based on real encryption methods with a police investigation simulator.

The Idea

When detectives discover six bodies at the city port, it becomes clear that this is only the beginning for a killer who has hit his stride and decided to officially challenge the police through an encrypted manifesto. You play as Barry Dalton — a cynical police crypto-analyst suffering from chronic insomnia, who flawlessly navigates the dark corners of serial killer psychology.

Shape Your Story 

The decisions you make affect not only the development of professional, friendly, or romantic relationships with characters, but also drastically change the course of the investigation and determine how many lives are saved from the killer. Listen to radio broadcasts to learn the consequences of your actions for the city, skillfully extract information during dialogues, and critically analyze every message from the maniac: is it a real clue or just another psychological manipulation?

Decryption Mechanics 

You will have to dive deep into the basics of cryptography. Besides the Phantom's letters, which are encrypted using Enigma machine, you will regularly assist the department with the codes of drug cartels, corrupt officials, and street gangs. Someone uses the classic Caesar cipher, another prefers the Vigenère square, and for some, Morse code is enough — your task is to visually recognize each algorithm and crack it using unique methods.

System Requirements

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Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: Intel Core i3 2.0 GHz
  • Memory: 4 GB RAM
  • Graphics: Integrated graphics card (Intel HD Graphics) or any graphics card that supports DirectX 11
  • Storage: 10 GB available space
  • Sound Card: Any DirectX-compatible sound card

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: Intel Core i5 / AMD Ryzen 3
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GeForce GTX 960 / AMD Radeon R9 280
  • Storage: 15 GB available space
  • Sound Card: Any DirectX-compatible sound card

Supported Languages

English*, Ukrainian
*languages with full audio support

Latest news

  • Community & EventsOfficial

    PHANTOM Joins the Ukrainian Games Festival!

    We’re incredibly happy to announce that PHANTOM is taking part in the Ukrainian Games Festival! 🇺🇦 As a Ukrainian indie team, it means a lot to us to see our game alongside so many talented developers from Ukraine. This festival is a great opportunity to celebrate the creativity and passion of our local game development community.And this is a special moment for us: PHANTOM is being officially revealed for the first time. During the festival, everyone can try the demo of the first episode and get their first glimpse into the world we’ve been building.When six bodies are discovered at a city port, a cynical police crypto-analyst is drawn into a deadly game with a serial killer who challenges the authorities through encrypted messages — and every decision may determine who survives.PHANTOM is a noir detective visual novel where you’ll investigate crime scenes, interrogate suspects, follow a trail of cryptic messages, and solve puzzles based on real encryption methods. Your choices shape the investigation, your relationships with the people around you, and ultimately how many lives you can save.The first episode is waiting for you. Play the demo during the Ukrainian Games Festival and meet the detective team.We hope you’ll enjoy uncovering the mystery as much as we enjoyed creating it.Слава Україні! 🇺🇦— The PHANTOM team
    Read full article on Community Announcements (prioplotgameswork)

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