Every character, faction, and timeline
in one searchable place.
Loreum is the database behind your fictional world. Track characters, relationships, timelines, organizations, maps, lore, and story structure in a purpose-built platform with instant search across everything. No scattered files, no lost notes, no contradictions. AI plugs into all of it, so whether you write solo or with a team, nothing falls through the cracks.
Everything your world needs, structured and connected
AI That Knows Your World
Connect Claude, Cursor, or any MCP-compatible AI. It reads your characters, relationships, timeline, and lore to generate content that fits your world.
Style Guide
Define your voice, tone, POV, pacing, and dialogue rules. Scene overrides and character voice notes let the AI maintain your style across sessions.
Entities & Custom Types
Characters, factions, locations, organizations, and fully custom types with configurable field schemas, backstories, and secrets.
Knowledge Graph
Relationships are first-class objects with labels and descriptions. Visualize your world's social, political, and narrative web.
Timeline & Gantt
Organize events chronologically with eras, drag-to-edit Gantt visualization, and custom calendar support for fantasy worlds.
Lore Wiki
Canonical world articles with categories, tags, and entity mentions. Your world bible, structured and searchable.
Storyboard
Plotlines, works, chapters, and scenes, all cross-referenced to your world data, timeline, and characters.
Review Queue
AI-suggested changes land in a staging area. Review a diff of every creation, update, and deletion before it touches your canon.
AI that reads your entire world
Because your world is structured data instead of scattered files, AI can query all of it. Bring your own AI or use the built-in assistant. Proposed changes go through a review queue before touching your canon.
Organize scattered notes
Dump in disorganized files, outlines, and brainstorm docs. AI reads them and structures them into entities, relationships, and timeline events.
Turn ideas into a world
Give AI a handful of concepts and let it flesh out characters, factions, locations, and the connections between them.
Write scenes and prose
AI writes in your voice using your style guide, with full awareness of who is in the scene, where they are, and what has happened before.
Generate dialogue
Each character carries voice notes. AI writes dialogue that sounds like the character, not like a generic chatbot.
Check consistency
Ask AI to find contradictions in your timeline, catch characters in two places at once, or flag lore that conflicts with established canon.
Reason about your world
Ask any question. Who would win this war? What happens if this character betrays their faction? AI has the full context to give grounded answers.
Built for anyone telling stories
Novel & Series Authors
Plan narrative structure, track character arcs across books, and keep continuity tight in long-running series.
Screenwriters & Showrunners
Movies, TV shows, web series. Structure episodes, track character timelines, and maintain consistency across seasons.
Game Narrative Designers
RPGs, open worlds, MMORPGs. Track quests, factions, branching storylines, and the lore behind them.
Tabletop RPG Game Masters
D&D, Pathfinder, homebrew systems. Organize campaigns, NPCs, session history, and share a player-facing wiki.
Comic Book Writers
Track character rosters, story arcs, power sets, and interconnected storylines across issues and volumes.
Collaborative World Builders
Writing groups, shared universes, anthology projects. Multiple creators, one canonical source of truth.
How it works
Build your world
Create entities, relationships, timelines, lore, and a style guide in the Loreum web app.
Add AI
Bring your own AI via MCP or use the built-in assistant. Build solo or invite collaborators.
Write with context
AI reads your canon to generate grounded content. Proposed changes land in a review queue for you to accept.