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DUAL PROTOCOL: The Case of Eva & Miles

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DUAL PROTOCOL: The Case of Eva & Miles screenshot 1
Dual Protocol Teaser Trailer trailerWatch trailer on Steam ↗

DUAL PROTOCOL: The Case of Eva & Miles

AEGEAN CRAFTERS · Published by Rock Paper Publisher · Official site ↗

Last updated 28 Sept 2026

Play as Agent Eva to follow the trail, or as Analyst Miles to manage the operation. Dual Protocol is an asymmetric noir puzzle game where two players progress only through conversation. Without seeing each other’s screens, combine the data you have and uncover the truth behind the Castellari murder.

Free to PlayComing SoonDJCTQ 10Co-op

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Casual · 2026 · More free games

About this game

Track clues behind locked doors as Agent Eva, or manage the operation from analog terminals as Analyst Miles. One is in the heart of danger on the field; the other is at the desk, buried in data. You cannot see each other's screens, yet you must become each other's eyes and mind. Dual Protocol is a pure Noir asymmetric detective experience where your voice and the information you relay are your only weapons.

In this investigation, the only way forward is to keep talking. You must instantly describe every complex symbol, every mysterious object, and every lock you encounter to your partner. A single miscommunication or a missing detail in the halls of the Castellari Manor could lead to the case being closed forever.

The mysterious murder at the city’s most prestigious estate is too deep to be solved from a single perspective. As Eva, touch the physical evidence on the ground; as Miles, dive into the archives to decrypt technical blueprints. Eva finds the clues Miles cannot reach; Miles analyzes the complex data Eva cannot decipher.

A bleak universe where the technological texture of the 90s collides with classic noir atmosphere. Search for the truth amidst CRT flickers, heavy shadows, and the tactile clatter of vintage computers. Manually enter terminal commands, scan documents, and piece together the Castellari murder bit by bit.

Cross-Data Verification

Connect the dots by matching real-time field info with hidden central records.

Asymmetric Operation

One player physically triggers mechanisms in the manor while the other reads complex system manuals to guide the way.

Critical Deduction

When Miles's data and Eva's observations unite, the veil of mystery over the Castellari murder will finally lift.

System Requirements

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Minimum

Minimum:
  • OS *: Windows 7
  • Processor: 2.0 GHz Çift Çekirdekli İşlemci
  • Graphics: 512 MB VRAM'li Entegre/Ayrık Grafik Kartı
  • Storage: 5 GB MB available space
  • Sound Card: DirectX 9.0c uyumlu

Recommended

Recommended:
  • OS: Windows 10 (64-bit)
  • Processor: 2.5 GHz Dört Çekirdekli İşlemci
  • Graphics: 1 GB VRAM'li Ayrık Grafik Kartı
  • Storage: 5 MB available space
  • Sound Card: DirectX 11 uyumlu

Supported Languages

English, French, Italian, German, Turkish, Spanish - Spain, Simplified Chinese, Japanese, Korean, Russian

Latest news

  • Patch NotesOfficial

    Dual Protocol: Demo Update Notes

    Greetings!We would like to thank all the players who participated in our demo and shared their feedback with us. Based on the data you provided, we are working tirelessly to make your gaming experience smoother. In this context, we have released a new update that resolves some issues encountered in the demo.Fixes and Changes:The loud and disturbing noise issue in the analyst room, which negatively affected the player experience, has been resolved.The volume levels of the gramophones in the mansion have been readjusted to suit the ambient dynamics.Forgotten Turkish texts in certain parts of the game have been removed and temporarily translated into English. With the release of our full version, all localization and language options will be integrated into the system.Your contributions to our development process are highly valuable to us. Thank you for your support on this journey towards the full release of Dual Protocol. Stay tuned for more updates.Aegean Crafters Team
    Read full article on Community Announcements (PUB)

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