Obsidian Moon Brings Detective Work & Danger Together in New Demo

Lost Moon Games has released a demo for Obsidian Moon, its text-based detective adventure, for PC via Steam.

The demo is part of the Steam Detective Fest, celebrating a wide array of investigative-themed titles. A new trailer for Obsidian Moon was also released, showcasing its text-based gameplay, set between desk and corkboard. Check it out below!

Obsidian Moon – Official Gameplay Trailer

The demo gives players the opportunity to play both an introductory tutorial case and the first case of the game. Players can expect an introduction to the eldritch-infused cityscape that holds sway over Obsidian Moon as well as an expected playtime of 20 to 45 minutes of gameplay, depending on their approach. Player agency is also at the forefront, with over thirty investigative solutions available, based on how players work the case, whether through leads, collecting forensic evidence, or a classic dirty detective shortcut.

Yannis Antonakakis, game director of Lost Cabinet Games, stated that the demo itself isn’t a vertical slice but “… a real case, built to show how much freedom the game gives you. We want players to experiment, make mistakes, and feel what it’s like to live inside an investigation, even if it costs them.” For more of what players can expect, feel free to check out an official synopsis below:

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).

Obsidian Moon Screenshots

As someone who enjoys hard-boiled detective novels and eldritch horror, I’m deeply curious to see what Obsidian Moon has to offer in terms of its world, tone, and variability. Based on what I’ve seen, it seems something most worthy of a try!

Obsidian Moon will launch on PC via Steam in 2026. A specific release date has not been announced at the time of writing.