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Obsidian Moon

Game overview

Obsidian Moon

Investigate your way in a branching noir horror detective game inspired by Lovecraftian horror and ancient Minoan myth. Analyze evidence, connect clues, and uncover dark secrets through genre-bending deduction mechanics. Face a sinister plot—and an ultimate choice.

Adventure Indie Simulation
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About this game Read the full description

Set in the smoke-filled alleys of a city drowning in secrets, Obsidian Moon is a text-based detective adventure rooted in 1930s noir and psychological tension. Players take on the role of Sam Carter, a once-respected homicide detective haunted by grief and failure, tasked with solving a series of interconnected murders through logic, instinct, and the steady collapse of his own sanity. Armed with vintage forensics, gritty intuition, and limited time, you’ll follow leads, interrogate suspects, and make costly choices that may bring you closer to the truth, or break you entirely.

Key Gameplay Features

  • 10 Intricate murder cases that interconnect into a larger plot involving a sinister cult that aims to resurrect an ancient dark entity, plus Optional side cases that reveal the key backstories.

  • A haunting mystery - Psychological and chthonic horror inspired by the works of H.P. Lovecraft and the mythologies of the Mediterranean Sea cultures.

  • Detective tools & abilities - Inspect clues, conduct surveillance, or even use a fully equipped 1930s forensics lab.

  • Player-driven investigation – interrogate witnesses, run forensic reports, dig into criminal records… or use your magnum to extract a confession (seriously don't do this).

  • Impactful choices - Your conduct counts. Build cases through methodical evidence collection, burn time and money on risky leads, use costly surveillance operations and questionable tactics to get what you want. Put your sanity at risk, or don't - its your choice.

  • Genre-bending Investigation system - A fusion of card-based mechanics like Stacklands, and Cultist Simulator, economy elements like Papers, Please and classic Point & Click adventure puzzle-solving.

  • Three game modes - From story mode to a hardcore permadeath detective challenge.

  • Noir Mode – Switch to a classic black & white graphics mode for a more immersive experience.

“…when the shadows devour the moon, SHE will rise again”

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🎁 Obsidian Moon – Official Wallpaper Release Notes v0.2.67 (Demo) Release Notes v0.2.63 (Demo)
System requirements Windows

Windows

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS *: Windows 7 SP1+, Windows 10, or later
  • Processor: Intel Core i3 (2nd Gen or later) or AMD equivalent
  • Memory: 4 GB RAM
  • Graphics: Integrated GPU (Intel HD Graphics 4000+), or any discrete GPU from ~2013 onward
  • DirectX: Version 10
  • Storage: 1 GB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10 64-bit
  • Processor: Intel Core i5-6500 / AMD Ryzen 3 1200 or newer
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GTX 750 Ti / AMD R7 370 or better
  • DirectX: Version 11
  • Storage: 1 GB available space
Game details Languages, features & support
Publisher
Lost Cabinet Games
Brazilian rating
12
Steam Germany rating
6
Content warning
This Game may contain content not appropriate for all ages such as text descriptions of violent crimes.
Features
Single-player, Adjustable Text Size, Camera Comfort, Custom Volume Controls, Adjustable Difficulty, Mouse Only Option, Playable without Timed Input, Save Anytime, Stereo Sound, Steam Cloud, Family Sharing
Languages
English
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Frequently Asked Questions

Is Obsidian Moon free to play?
Yes, Obsidian Moon is free to play on Steam.
What genre is Obsidian Moon?
Obsidian Moon is a Adventure, Indie, Simulation game.
Who developed Obsidian Moon?
Obsidian Moon was developed by Lost Cabinet Games and published by Lost Cabinet Games.
What platforms does Obsidian Moon support?
Available on Steam for Windows.