WorldBuilder
PremiumA connected knowledge base for your fantasy world. Create entries for characters, locations, factions, items, and events - link them together, track history, collaborate with your group, and generate new content that fits the lore you have already built.
7-day free trial included with Premium. No credit card required to start.
What Is WorldBuilder?
WorldBuilder is a structured worldbuilding tool built into MythosGen. It gives you a single workspace to create, organise, and connect every element of your fantasy setting - characters, locations, factions, items, events, cultures, creatures, and religions. Each entry stores a description, tags, tone, and canon status, and can be linked to other entries through a relationship graph.
Beyond a flat wiki, WorldBuilder offers a timeline view, AI-powered intelligence layer, collaborative editing, entry versioning, free-form World Notes, and lore-aware AI generation. When you link the AI Generator to your world, generated content respects your established tone, setting, and canon.
Nine Entry Types for Every Part of Your World
Each entry type captures the details that matter. Add descriptions, tags, tone, and canon status. Then link entries together with relationships.
Characters
Heroes, villains, NPCs, and everyone in between. Store descriptions, tags, tone, and how they connect to the wider world.
Locations
Cities, dungeons, forests, taverns, and planes. Map where things happen and link them to the people and events that define them.
Factions
Guilds, kingdoms, cults, mercenary companies. Track membership, alliances, rivalries, and territory.
Religions
Pantheons, churches, cults, and belief systems. Record doctrine, followers, and influence across your world.
Items
Weapons, artifacts, relics, and everyday objects with significance. Link them to their owners, creators, and history.
Events
Battles, coronations, disasters, and turning points. Place them on a timeline and connect them to the people and places involved.
Cultures
Customs, traditions, languages, and social structures. Define what makes each society in your world distinct.
Creatures
Monsters, beasts, familiars, and mythical beings. Record habitats, behaviors, and lore.
Notes
Free-form entries for anything that does not fit a category. Session logs, design notes, and placeholder ideas.
Relationship Graph and Knowledge Graph
Map the connections that define your world. Link any entry to any other entry with typed relationships - alliances, rivalries, locations, membership, founding, lineage, and more. The relationship graph visualises your entire world structure at a glance and helps you spot gaps or inconsistencies as your lore grows.
What WorldBuilder Gives You
More than a notes page - a connected workspace for your lore.
Relationship graph
Map connections between entries - alliances, rivalries, locations, membership, founding, lineage, and more. See how your entire world fits together at a glance.
World Notes and Notebooks
Capture rough ideas, planning drafts, and session notes in free-form World Notes. Organise them into Notebooks and expand them into structured entries when you are ready.
Timeline view
Place entries on a timeline with era labels and date markers. Visualise the chronological flow of your world's history from founding myths to the present day.
World Intelligence
An AI-powered analysis layer that spots patterns, surfaces connections, and explores your lore. Discover relationships and gaps you might have missed.
Comments and versioning
Leave comments on entries, review changes, and restore previous versions. Every edit is tracked so nothing is lost as your world evolves.
Collaboration and sharing
Invite collaborators with role-based permissions - owner, editor, or viewer. Share a public read-only link, review each other's entries, and build your world together.
Lore-aware AI generation
Link the AI Generator to your world. Generated names, locations, factions, and items respect your established tone, setting, and canon.
Canon status tracking
Mark entries as draft, in review, canon, or archived. Keep your world organised as it grows and distinguish settled lore from work in progress.
Configurable World Settings
When you create a world, you choose the base setting, detail level, magic level, and tech level. These settings shape your world's identity and inform AI-generated content. You can also set custom tone, themes to encourage, and themes to avoid.
High Fantasy, Low Fantasy, Dark Fantasy, Epic Fantasy, Urban Fantasy
Generic Fantasy, D&D-inspired, Pathfinder-inspired, JRPG-inspired, Folklore-inspired, Mythology-inspired
None, Low, Medium, High, Pervasive
Primitive, Ancient, Medieval, Renaissance, Industrial, Magitech
Who WorldBuilder Is For
Whether you are writing a novel, running a campaign, or designing a game setting, WorldBuilder adapts to your workflow.
Organise your story Bible
Keep every character, location, and faction in one queryable knowledge base. Follow relationship threads across your lore, track versioned changes, and generate names and concepts that fit your world's tone and setting.
Prep sessions faster
Build a living campaign reference. Add NPCs, towns, and organisations as they appear in play. Use the timeline to track events across sessions and the AI generator to fill gaps on the fly with lore-aware results.
Prototype and scale your setting
Design interconnected worlds from the ground up. Map factions, religions, cultures, and creatures. Invite collaborators to review and expand the lore, and use the relationship graph to validate consistency as complexity grows.
How WorldBuilder Fits the MythosGen Workflow
- Generate - use free algorithmic generators or the AI Generator to create names, locations, factions, and items.
- Collect - save results into Collections and organise by campaign, session, or world.
- Build - add entries to WorldBuilder. Link them together, set canon status, and see your world grow.
- Expand - anchor the AI Generator to your world for lore-aware generation. New content fits what you have already built.
Ready to build your world?
WorldBuilder is part of the Premium plan. Start a 7-day free trial or upgrade directly and create your first world today.
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