The Unknown Beneath & Beyond
Cosmic Horror RPG Generators
Build investigations shaped by impossible environments, forgotten expeditions, strange archaeology, and discoveries too large to explain away. These generators favour original eldritch mysteries, fragile certainty, and alien scale, not vampire courts or gothic-noir intrigue.
- NPC Generator Generate fully realised NPCs with ancestry, role, personality, secrets, and plot hooks.
- Personality Generator Generate a coherent, playable personality -- drives, virtue and flaw, a real contradiction, and how they act under pressure -- ready to roleplay.
- Faction Generator Build organisations with agendas, internal conflicts, notable members, and power structures.
- Faction Roster Generator Turn a faction into 3-6 named members, each with a motive, a stance, and a connection to another member.
- Quest Generator Create adventure hooks with goals, complications, rewards, and dramatic twists.
- Rumour Generator Generate a d6 table of six local rumours -- each with a concrete lead and a source -- lighter than a full quest hook.
- Encounter Generator Generate a playable combat, social, exploration, environmental, or mixed encounter with participants, environment, a complication, and outcomes.
- Puzzle Generator Create flexible encounter puzzles with layered clues, alternate solutions, and fail-forward consequences.
- Plot Twist & Complication Generator Turn an established situation into a coherent twist with fair foreshadowing, consequences, and new player choices.
- BBEG / Campaign Villain Generator Create a campaign-scale antagonist with a concrete goal, methods, lieutenants, and an escalating plan the party can discover and disrupt.
- Heist Generator Generate a playable score: a prize with a practical catch, three layered security rings, an escalating alarm track, and a getaway whose original plan has already failed.
- Council Vote Generator Generate a political vote quest: a named council of voters with distinct agendas that the party must sway before a deadline decision.
- Secret Society Generator Create cults, sects, conspiracies, and hidden orders with doctrine, rituals, a public face, and adventure hooks.
- Name Generator Generate character, place, faction, and item names tuned to your genre and cultural style.
- Outpost Generator Build remote stations, weather-beaten towns, and expedition camps with uneasy locals, evidence, and impossible surroundings.
- Dungeon & Delve Generator Generate multi-layered dungeons, ancient ruins, subterranean vaults, alien complexes, or cybernetic facilities.
- Adventure Idea Generator Generate campaign-ready adventure concepts with initial situation, primary pressure, key locations, threats, and non-linear outcomes.
- Minor Magic Item Generator Generate small-scale charms, consumable potions, single-use devices, and curiosities with clear limits and quirks.
- Creature Generator Generate monsters, beasts, alien fauna, and undead with ecology, signs, combat tactics, and adventure hooks.
- Artifact & Relic Generator Generate unique, named major artifacts and ancient relics with multi-tier powers, curses, pursuing factions, and destruction conditions.
- Constellation Generator Generate a culturally meaningful constellation: a star pattern, an origin myth, seasonal visibility, practical use, cultural meaning, and an adventure hook.
- Social Hub Generator Generate a social venue for your genre: dive bars, cantinas, nightclubs, or underground markets.
- Field Report Generator Generate a field report: missing expeditions, astronomical anomalies, restricted notices, and unsettling leads, with GM-only hooks.
- Alien Race Generator Generate a coherent alien species whose biology, homeworld, culture, and technology all follow from each other.
- Language Generator Design a fictional language profile: pronunciation, naming rules, example names, and a starter glossary tuned to your genre.
- Surprise Me Not sure what to generate? Spin the machine: a random idea tuned to your active theme.
Campaign guides for these worlds
How Codex Cryptica handles the systems, genres and campaign styles these generators are built for.
- Codex Cryptica for Call of Cthulhu Keep Investigators, contacts, handouts, clues, cults, and tomes connected in one local-first workspace.
- Codex Cryptica for Cosmic Horror Keep occult orders, research archives, expedition logs, and incomprehensible entities connected in one local-first workspace.
- Codex Cryptica for Delta Green Keep Agents, Bonds, cells, Green Boxes, and the unnatural connected in one local-first workspace.