The Signal is a Monster of the Week TTRPG Horror Module ideal for 2 to 6 players plus Game Master (GM).
There’s always been a strange radio signal drifting through the static—repeating the same pattern, never changing. Locals don’t give it much thought. Some say it’s an old Cold War broadcast looping endlessly. Others say it’s just the background noise of life in this quiet town. Familiar. Predictable. Safe.
Until now.
The signal has shifted—its once-reliable rhythm disrupted. And that change has caught the attention of the Hunters United Guild. They’ve seen this kind of thing before. They believe it’s a warning, the first ripple of something dark about to surface.
They need your help. Find out what changed. Fix it—if you can.
The source? They think it’s coming from the island.
The island.
The one shrouded in fog and silence. The one no one visits, and no one mentions.
You’ll have to go there.
And you might not all come back.
The Signal is a tightly written, atmospheric one-shot for Monster of the Week, designed for a modern horror setting. Inspired by the early seasons of Supernatural, Riverdale, Buffy the Vampire Slayer, and Chilling Adventures of Sabrina, it offers suspense, mystery, and a touch of the uncanny.
With 14 pages of detailed Game Master notes and story hooks, it’s easy to run whether you’re a first-time Game Master or a seasoned veteran.
About The Signal
This one-shot game offers a mix of roleplaying, investigation, and creative problem-solving, all set in on an isolated island filled with danger. It’s a perfect module for a horror ttrpg session.
Inside The Signal you will find:
- 7 pages of detailed game beats – Featuring story arcs, scene descriptions, dialogue, and encounter guides to elevate every moment at the table.
- Quick-reference game beats sheet – A handy summary to keep the adventure flowing during gameplay.
- 4 unique NPCs – Three humans and one loyal dog, each with their own motivations, personalities, and dialogue to bring them to life.
- Antagonists and monsters – With rich descriptions, motivations, and dialogue, including two original monsters designed to truly unsettle your players.
- 5 atmospheric locations – Fully fleshed out with vivid details and narrative clues to help players unravel the mystery.
- Extensive game notes – Packed with extra flavor and a useful FAQ to support the GM behind the screen.
- Bonus handout – Excerpts from the Diary of Elderman James to immerse your group in the world of the story.
Game tropes
- New monsters
- Flying monster
- Water monster
- Abandoned laboratory
- Urban horror
- Modern RPG
Possible Triggers
- Bugs
- Drowning
- Losing a limb
- Death of a dog (The NPC could die if the hunters don’t look after him)