System-neutral
Built to work with Call of Cthulhu, Delta Green, Vaesen, homebrew, or whatever horror system is already on your table.
The Horror GM Toolkit
System-neutral horror session tools for GMs who prep on purpose.
Most horror sessions don't fail because the GM lacks imagination. They fail because there's no structure underneath the fear. The tension breaks. The pacing drifts. The players shrug instead of shudder.
The Horror GM Toolkit is 13 printable, fillable worksheets built to fix that — scene by scene, session by session, campaign by campaign.
13 tools, 15 pages
Every tool earns its place. No filler. No padding. Each page solves a real problem at the horror table.
Print or fill digitally
Open in any browser, fill on screen, or print directly. Black and white friendly. Designed for the table.
Built for every phase
Covers prep, session zero, investigation, campaign management, character tracking, and post-session debrief.
The horror almost worked. These tools are what I wished I had during every session where it didn't quite get there.
What this toolkit does
The Horror GM Toolkit gives you a structured workflow for the full horror GM experience — from the first conversation with your players at Session Zero through scene-level atmosphere building, investigation structure, campaign dread tracking, and post-session analysis. Instead of improvising the scaffolding under your horror, you build it deliberately and bring it to the table.
Inside the toolkit
Horror Scene Atmosphere Framework
Two pages. Sensory layer across all six senses, atmosphere dials, light and shadow mapping, NPC presence, escalation arc, and GM notes. Build the scene before you run it.
Scene Beat Planner
Six scene rows with intended tension, available clues, NPC presence, and a fallback for when players bypass the scene. Plus a five-phase session arc and a must-land beat.
Horror Tone Card & Session Zero Contract
Define your game's horror profile, align expectations, and establish boundaries and safety tools before the first session. Do this once. Prevent problems for the whole campaign.
Evidence Web
Six clue cards — Evidence, Red Herring, or Witness — plus a discovery sequence, convergence path, and a fail-safe for when players hit a wall.
Investigation Scene Kit
Location setup, a findables table with type and difficulty, three NPC quick-ref cards with what they will and won't say, and four scene pressure columns. One page. One scene. Ready.
Horror Debrief Engine
Two versions: the Keeper's Log for your post-session analysis, and the Survivor's Card for the whole table. Run both. Learn fast. Every session gets sharper than the last.
Cult / Conspiracy Relationship Map
Visual network diagram for mapping organizational hierarchies, hidden agendas, and power structures. Draw the web before your players start pulling threads.
Villain Profile Sheet & NPC Tracker
A full psychological workup for your primary antagonist — plus a tracker for every recurring NPC's motivations, secrets, relationships, and history.
Player Character Fear Profile
One card per player. What they're afraid of. What they have to lose. What the horror has to take from them. Fill it at Session Zero. Update it as the campaign costs them something.
Escalation Tracker
Track rising dread across three parallel tracks — investigation, environment, and horror manifestation — in real time at the table.
Campaign Dread Tracker
Arc-level dread mapping for the whole campaign. Chart the dread curve, identify repeating pressures, and plan the endgame shape before you're already in it.
Who this is for
Horror GMs who prep deliberately
You want your sessions to land. You want structure under the fear, not just atmosphere in your head.
Keepers and Referees
Designed with CoC, Delta Green, and Vaesen in mind, but useful for any horror system at any table.
GMs running investigative horror
The Evidence Web and Investigation Scene Kit were built specifically for mysteries with teeth.
Anyone running a horror campaign
The dread trackers, fear profiles, and debrief engine are built for the long game — not just one-shots.
What you get
- 13 purpose-built tools across 4 categories.
- Printable and fillable HTML — works in any browser, prints cleanly in black and white.
- System-neutral — no system-specific rules, mechanics, or assumptions.
- Immediate use — no assembly required. Open a file and start filling it in.
Not a random table generator. Not a monster manual. Not a collection of one-page adventures. This is structured prep and tracking — the scaffolding underneath the fiction. If you want your horror to have bones, this is the kit.
Stop winging it. Start building dread.
The Horror GM Toolkit gives you 13 system-neutral tools for running horror sessions that land — from scene zero to the final revelation.