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Worldbuilding App
Build connected fantasy characters, locations, lore, equipment, art, and roleplay—solo or together.
Worldbuilding resources
Build a connected universe with the Summon Worlds app, then develop names, characters, creatures, calendars, and lore with focused tools and guides.
Worldbuilder's toolkit
Start with the connected mobile app, or explore a focused idea with free generators that run in your browser.
Start here
Build connected fantasy characters, locations, lore, equipment, art, and roleplay—solo or together.
Names
Create consistent names for characters, settlements, kingdoms, worlds, factions, and creatures.
Characters
Connect roots, beliefs, motivation, fear, relationships, secrets, conflict, stakes, growth, and story hooks.
Planning
Get a focused checklist for a novel, tabletop campaign, or world you are building for fun.
Keep building
Develop the people, creatures, history, and time systems that make a setting feel connected.
Game masters
Create a roleplay-ready NPC for D&D, Pathfinder, or another fantasy RPG, with goals, secrets, offers, leverage, escalation, and a portrayal cue.
Creatures
Combine habitat, anatomy, behavior, defenses, weaknesses, ecology, and story potential.
Time and history
Design custom months, weekdays, seasons, moons, festivals, and important dates.
Learn and connect
Product help
Learn how worlds, summons, AI chat, collaboration, mana, and memberships work.
Worldbuilding ideas
Use practical frameworks for characters, cities, creatures, economies, and campaigns.
Product news
Follow new features, events, creator highlights, and improvements from the team.
Questions and answers
Yes. The tools on this page work in your browser without requiring a Summon Worlds account.
Tools that save progress keep it on your current device. Use the available copy or download action when you want a portable backup.
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.
Start with the guidebook or join the Summon Worlds Discord community for support and conversation with other creators.
Creative community
Trade ideas, find collaborators, and get help from other Summon Worlds creators.
Your next world is waiting
Join storytellers, game masters, writers, and artists creating universes together.