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Life & fun · alternatives · 2026

24 alternatives to X-Files: Deep State

A mystery investigation game

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. X-Files: Deep State launched in 2018; newer entries below may have overtaken it.

  1. 1

    SQL Police Department is an online game where you solve crimes using SQL (and learn SQL in the process). Learn SQL while playing a game!

    2020 · sqlpd.com · its alternatives →

  2. 2

    I built SQL Noir, an interactive detective game that challenges you to solve mysteries using real SQL queries. It’s fully open source, designed to give you a practical and immersive way to learn SQL while engaging with a narrative-driven mystery.

    2025 · sqlnoir.com · its alternatives →

  3. 3

    A game where you play detective and solve a mystery

    2023 · mysteries.ai · its alternatives →

  4. 4

    Hey HN! I'm excited to show off this really fun project I put together. I originally built this project 2-3 years ago, AI was already booming at the time, however voice AI agents were still very early. I loved my proof of concept at the time, but wasn't quite happy with it. I recently had the desire to check out the tech again, and know many of you will be interested. Interviews are speech to speech with OpenAI's gpt-realtime-2.1 over WebRTC. This model is... expensive, and because of that, I have to add some amount of restrictions, conversations are tied to a authenticated Clerk user id. I…

    Aug 2026 · whodunnitai.com · its alternatives →

  5. 5AM

    Hey HN, Michael and Scott here. We’re open-sourcing an interactive murder mystery featuring LLM-driven character agents. Solve the mystery by finding clues, taking notes, and interrogating agents. They all have distinct motives, personality, and can impact the game in different ways (attacking you, running away, etc). Try it out, it’s pretty fun! We’re also open-sourcing the framework that we used to make and refine the agents. The goal is to create an intuitive interface for storytellers to create, debug, and test game agents. We then take those game agents and expose an API beyond just…

    2023 · gron.games · its alternatives →

  6. 6
  7. 7

    Hidden-object game based off of The Blacklist

    2016 · play.google.com · its alternatives →

  8. 8

    Hi HN! Worked on this side project for a while and wanted to share it. It's free to play.

    2025 · detective.wiki · its alternatives →

  9. 9

    Learn SQL while solving crimes! Climb the ranks of SQL PD.

    2020 · sqlpd.com · its alternatives →

  10. 10

    An FMV mystery set in a post-apocalyptic bunker

    2016 · store.steampowered.com · its alternatives →

  11. 11
    none*2▲87

    A mysterious game of riddles, episode2

    2015 · whatisnone.com · its alternatives →

  12. 12

    Find the weapon and motive in a crime scene

    2015 · sketchfab.com · its alternatives →

  13. 13

    _Dimity Jones In Puzzle Castle: An Electronic Escape Novel in Eighty-Nine Ciphertexts_ is a (mostly) fictional story, contained in a single text file, that requires the reader to solve puzzles as they go along, and to use each chapter's solution as a key to decipher the next. Think: escape room in the form of a novel. A computer, and rudimentary coding skills in a language of your choice, will be indispensable for performing the transformations -- and might help with the solving too! My wife, the author, passed away five years ago. This is not the last thing she wrote, but it is the most…

    2024 · github.com · its alternatives →

  14. 14

    A stealth/hacking game set in 1996

    2015 · store.steampowered.com · its alternatives →

  15. 15

    Unlock the secret held by AI, get better at prompting

    2023 · gptriddle.com · its alternatives →

  16. 16
    Infra▲71

    Uncover the mystery in this first person puzzler

    2016 · store.steampowered.com · its alternatives →

  17. 17

    AI fraud detection for documents, IDs, and images

    May 2026 · deepxl.ai · its alternatives →

  18. 18
    The X▲81

    Weekly puzzle-based scavenger hunt

    2018 · apps.apple.com · its alternatives →

  19. 19

    AI-Native Mystery Game

    2025 · its alternatives →

  20. 20

    Interrogate AI suspects and solve ever‑changing murder cases

    Jan 2026 · murdermysterygame.org · its alternatives →

  21. 21LP
  22. 22

    Your mission is to uncover the full truth.

    2024 · apps.apple.com · its alternatives →

  23. 23

    Cinematic puzzle games and cross-media experiences

    2023 · onemystery.club · its alternatives →

  24. 24

    Unlock bizarre boxes by solving intriguing enigmas

    2022 · xsgames.co · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →