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Watch trailer on Steam ↗Murder Mystery Mayhem AI
AI Media Design · Published by AI Media Design · Official site ↗
Content notice: Murder Mystery Mayhem contains themes and content suitable for mature audiences. As a detective game set in the 1920s, it revolves around murder investigations and discussions of various criminal activities. The game includes cartoonish depictions of dead bodies and blood, which are shown in the intro and outro scenes. These scenes can be skipped for those who prefer not to view them. Given the historical setting, the game also features period-appropriate depictions of alcohol and tobacco use. Throughout the gameplay, players will encounter mature themes including murder, deception, and other criminal activities. While the art style is retro and cartoonish, the subject matter is intended for mature players. It's important to note that there are no explicit depictions of sexual content, sexual assault, drug abuse, or self-harm in the game.
Positive — 92% positive (12 reviews) · 28 achievements
Last updated 29 Sept 2026
Murder Mystery Mayhem AI is a single-player detective game set in a stylish 1920s world of secrets, suspicion, and social intrigue. Talk freely to a colorful cast of cunning suspects, gather clues, uncover motives, and deduce who among them is the killer.
£8.99
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Price history
Indie · 2026 · More £5 - £15 games
Step into the shoes of a detective in Murder Mystery Mayhem AI, unraveling clues among a colorful cast. Experience the stylish 1920s in this indie game where every conversation holds a secret.
About this game
A murder has been committed, and everyone in the room has something to hide.
Murder Mystery Mayhem is a single-player detective game set in a stylish 1920s world of secrets, suspicion, and social intrigue. Talk freely to a colorful cast of cunning suspects, gather clues, uncover motives, and deduce who among them is the killer.
Key Features
Interrogate suspects freely by text or voice
Hear guests answer back with spoken dialogue (weekly limits apply)
Approach conversations in your own style
Shift guest moods through the way you speak to them
Unlock hidden clues and secret knowledge
Question a large cast of suspects, each with distinct personalities, quirks, and secrets
Investigate motives, contradictions, and clues at the scene of the crime
Deduce the killer through conversation and evidence
Interrogate Freely
Talk to suspects naturally by typing or using your microphone, and hear them speak for a more immersive back-and-forth. You are free to approach each conversation however you like: calm and methodical, warm and reassuring, confrontational, manipulative, playful, or relentless. Play good cop, bad cop, or invent your own style. Ask about the case, revisit earlier statements, push on weak points, or wander into unexpected topics like you would in a real conversation. The way you handle people is part of the investigation.
Read the Room
Guests react to your approach, and the tone of an interrogation can shift as the conversation unfolds. A suspect who seemed at ease may grow guarded, irritated, or unsettled, while someone under pressure might suddenly let slip something they never meant to share. Getting useful information is not just about asking the right question, but about sensing how each person responds and knowing when to press, when to reassure, and when to change tactics.
Follow the Clues and Deduce the Killer
Every conversation can lead to new information, hidden knowledge, and cryptic clues that help you piece the case together. Question a large colorful cast of suspects, each with their own personality, quirks, and secrets — from aristocrats and butlers to maids, inventors, officers, and other suspicious guests. Search for the truth across three whimsical pixel art locations: the mansion's Grand Hall, its shadowy Library, and the estate Gardens. Investigate the murder, uncover motives and suspicious behavior, and connect the evidence into a coherent theory of what happened.
On higher difficulties, the case grows even more dangerous. Some guests become openly uncooperative and will not give anything away unless you first pressure them with something incriminating. Others are more likely to lie to you, making it harder to separate false leads from the real trail. Step into the mansion, test your instincts, and see whether you can crack the case when everyone starts fighting back.
Important Information
Internet connection required during play
Guests can reply with spoken dialogue via text-to-speech (weekly limits apply)
Voice and conversation systems rely on external online services
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 or later
- Processor: Dual-core CPU @ 2.0 GHz
- Memory: 2 GB RAM
- Graphics: OpenGL 2.1 / OpenGL ES 2.0 compatible
- Network: Broadband Internet connection
- Storage: 500 MB available space
- Sound Card: Basic audio output device; microphone support (optional)
- Additional Notes: A constant internet connection is required to play due to the integration of third-party AI services.
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
Update Notes 1.1.0
-implemented new character voices (Note: due to api rate limits, old voices may be used sometimes) -implemented streaming of new character voices (less delay) -overhauled chat language localization systemRead full article on Community Announcements (AI Media Design)Patch NotesOfficial
Update Notes 1.0.2
-fixed murderer not remembering previous conversation during confessionRead full article on Community Announcements (AI Media Design)Patch NotesOfficial
Update Notes 1.01
-bug fixes for external joysticks/controllersRead full article on Community Announcements (AI Media Design)Patch NotesOfficial
Update Notes 1.0 - Out of Early Access, the Mayor, the Maid
Detectives, the estate has opened its doors a little wider. With this update, Murder Mystery Mayhem AI is officially out of Early Access. Thank you to everyone who has interrogated suspects, cracked codes, tested alibis, and helped shape the game along the way. Your feedback, theories, and sharp detective instincts have helped bring the game to this milestone. And no grand occasion would be complete without a few fresh faces. Introducing two new guests: The Mayor – Mayor Reginald Pomeroy arrives with polished charm, public smiles, and the sort of confidence only a thoroughly respectable man could wear while standing suspiciously close to scandal. He is a man of influence, appearances, and very convenient explanations. The Maid – Mabel Finch is overworked, under-rested, and far more observant than most of the household realizes. She may look ready for a nap, but behind every yawn is another detail she probably noticed while cleaning up after everyone else. These two new characters bring even more personality, suspicion, and social maneuvering to your investigations. Whether you're dealing with polished political evasions or tired but sharp-eyed housekeeping gossip, you'll need to read between the lines if you want the truth. Update now and step into the full release of Murder Mystery Mayhem AI. The case is bigger than ever, detective.Read full article on Community Announcements (AI Media Design)Patch NotesOfficial
Update Notes 0.9.7
made currently unlocked dossiers accessible from the in-game journal added two new jazzy music tracksRead full article on Community Announcements (AI Media Design)






