Worldbuilding resources

Build Better Worlds, One Useful Detail at a Time

Build a connected universe with the Summon Worlds app, then develop names, characters, creatures, calendars, and lore with focused tools and guides.

Keep building

More free tools for living worlds

Develop the people, creatures, history, and time systems that make a setting feel connected.

Game masters

Fantasy RPG NPC Generator

Create a roleplay-ready NPC for D&D, Pathfinder, or another fantasy RPG, with goals, secrets, offers, leverage, escalation, and a portrayal cue.

Creatures

Fantasy Creature Generator

Combine habitat, anatomy, behavior, defenses, weaknesses, ecology, and story potential.

Time and history

Fantasy Calendar Maker

Design custom months, weekdays, seasons, moons, festivals, and important dates.

Learn and connect

Go deeper with Summon Worlds

Product help

Summon Worlds Guidebook

Learn how worlds, summons, AI chat, collaboration, mana, and memberships work.

Worldbuilding ideas

Creator Blog

Use practical frameworks for characters, cities, creatures, economies, and campaigns.

Product news

Community Updates

Follow new features, events, creator highlights, and improvements from the team.

Questions and answers

Frequently asked questions

Are the worldbuilding tools free?

Yes. The tools on this page work in your browser without requiring a Summon Worlds account.

Where are my results saved?

Tools that save progress keep it on your current device. Use the available copy or download action when you want a portable backup.

Can I continue an idea in the Summon Worlds app?

Yes. Copy or download the result, then use it as the starting point for a world or summon in the mobile app. Automatic website-to-app syncing is not available yet.

Where can I get help?

Start with the guidebook or join the Summon Worlds Discord community for support and conversation with other creators.

Creative community

Chat with people who love worldbuilding as much as you do

Trade ideas, find collaborators, and get help from other Summon Worlds creators.

Your next world is waiting

Build worlds. Meet friends. Share stories.

Join storytellers, game masters, writers, and artists creating universes together.