🦑 Horror RPG Resources
Welcome to the Horror section! These tools and references work with any horror tabletop RPG system including Call of Cthulhu, Delta Green, GUMSHOE, Alien RPG, Dread, and other cosmic horror, investigation, and survival games.
🔧 Tools
📖 Reference Materials
GM Quick Reference
Essential on-the-spot tables for names, whispers, and investigation complications.
- ✓ Investigator Names (d100)
- ✓ Rumors & Whispers (d20)
- ✓ Quick Loot (d20)
- ✓ NPC Quirks (d20)
Investigation Mechanics
The Three Clue Rule, investigation design, and mystery structure.
- ✓ Three Clue Rule
- ✓ Clue Hierarchies
- ✓ Floating Clues
Sanity System
Sanity mechanics, loss tables, and mental conditions reference.
- ✓ Sanity Loss Tables
- ✓ Phobias & Manias
- ✓ Temporary vs Indefinite Insanity
Atmosphere & Dread Tables
d100 tables for atmospheric horror elements and environmental dread.
- ✓ Atmospheric Elements
- ✓ Environmental Horror
- ✓ Location Oddities
Horror Encounters
Random encounter tables for urban, rural, and investigation scenarios.
- ✓ Urban Horror
- ✓ Investigation Complications
- ✓ Supernatural Events
Mythos Reference
Cthulhu Mythos creatures organized by type and threat level.
- ✓ Cosmic Entities
- ✓ Subterranean Creatures
- ✓ Extraterrestrial Beings
Downtime Activities
Research, recovery, and investigation activities between scenarios.
- ✓ Occult Research
- ✓ Mental Recovery
- ✓ Investigation Prep
Madness & Incidents
Madness effects and paranormal incidents for tracking investigator mental deterioration.
- ✓ Short/Long/Indefinite Madness
- ✓ Paranormal Incidents
- ✓ Recovery Methods
🎲 Generators
NPC Generator
Generate Call of Cthulhu investigators and NPCs with stats and backgrounds.
Available NowCultist Name Generator
Generate cultist and Mythos-inspired character names.
Available NowInvestigation Generator
Generate mystery scenarios with clues and investigation hooks.
Available NowNightmare Generator
Random nightmare content for sleeping investigators and horror atmosphere.
Available Now📚 Resources
Mythos Bestiary
Links to comprehensive Cthulhu Mythos creature references.
- ✓ Creature Categories
- ✓ Official Resources
- ✓ Free References
Investigation Design Guide
Deep dive into designing compelling investigation scenarios.
- ✓ Mystery Structure
- ✓ Pacing & Revelations
- ✓ Clue Design Tips
Horror Systems Guide
Comparison of horror RPG systems and system-agnostic advice.
- ✓ Call of Cthulhu
- ✓ GUMSHOE
- ✓ Delta Green
💡 Tips for Using These Tools
For Keepers & GMs
- Use the Sanity Tracker during tense sessions
- Apply the Three Clue Rule to all mysteries
- Bookmark investigation reference pages
- Use atmosphere tables for improvisation
- Track sanity loss immediately when triggered
Adapting to Your System
- Tables work with any horror system
- Adjust sanity mechanics to your rules
- Convert difficulty ratings as needed
- Mix and match investigation styles
- Focus on atmosphere over mechanics