The game puts you in charge of a murder investigation where every suspect has something to hide and could plausibly be the killer. A suspicious alibi or a buried secret might lead you to the murderer, or to someone hiding an entirely different truth.

• Question everyone. Trust carefully: Interrogate suspects and witnesses, compare their accounts, and confront them with evidence to expose contradictions and uncover what they held back.
• Turn clues into a case: Search locations for evidence, combine clues into deductions, and build connections between your findings and the suspects. Identify who had the means, motive and opportunity to commit the murder.
• Three mysteries ready to play: Investigate Tregarrow House, Halley VI Research Station and Palmyra Hotel, all playable offline. Illustrated scenes and a dedicated soundtrack for each case set the mood.
• A new case, on your terms: Use LLMs from OpenAI, Anthropic or Google with your own API key to generate new mysteries around a theme you choose. Cases are generated before you play, so the investigation itself runs locally.
• Bring your own story: Play DLC and community-written cases by importing their case files, or write your own.
• Make it comfortable to read and play: Options for dyslexia and visual impairments include OpenDyslexic, adjustable text, high contrast, colourblind-friendly palettes and optional text-to-speech narration.

1. Follow the first leads: Choose a case and solve an optional logic puzzle about the cast to reveal how much evidence each location and person holds, then read the brief. Explore the locations, examine the scene, and question suspects and witnesses about the victim and the crime.
2. Dig beneath their stories: Collect testimony and physical evidence, then return with new findings to challenge accounts and unlock further leads. Intuition hints help when you need a nudge.
3. Connect the evidence: Review your findings, combine clues to make deductions, and connect evidence with the suspects it concerns. Separate secrets and red herrings from the facts that explain the murder.
4. Prove your accusation: Name the killer and support your conclusion with evidence of means, motive and opportunity: how they could do it, why they would, and when they had the chance. Then read the aftermath: what became of the people you investigated depends on what you uncovered.

For a guided introduction to every mechanic, choose Tutorial: Tea at Ashworth Manor when starting a new case.