Detective Campaign Prep
Mystery & investigation RPG generator
Design complex whodunits in minutes. Weave intricate clue webs, cast suspicious NPCs, and get a foolproof investigation booklet.
Draft your murder mystery scenario
Define the crime scene, add the suspects, and establish the hidden truth for your investigation one-shot.
About five minutes · review your outline before anything is generated
A robust case file that never stalls
Our clue trail generator ensures your detective RPG prep is bulletproof. Using the three-clue rule, multiple leads always point to the truth, meaning your players can miss a clue and still solve the murder mystery scenario.
Building your investigation one-shot
- 1
Define the central crime
Establish the victim, the crime scene, and the ultimate truth the investigators need to uncover.
- 2
Connect the clues
Our mystery RPG generator maps out the evidence and links clues to locations and suspects.
- 3
Run the investigation
Print your customized GM case file and let your players unravel the mystery at their own pace.
Mystery RPG generator FAQ
- What happens if players miss a vital clue?
- They won't get stuck. The generator employs a robust three-clue rule, ensuring multiple distinct leads point to the same critical revelation.
- Is this compatible with Gumshoe or Call of Cthulhu?
- Yes, the generated investigation one-shot is rules-agnostic. It provides the narrative framework, allowing you to use your preferred system's mechanics for skill checks and interrogations.
- Do suspects feel one-dimensional?
- No. Each suspect carries their own secrets and reasons to lie, so interrogations stay tense even when the group pursues the wrong theory.