✦ Worldbuilding for stories, campaigns, and roleplay

Build Living Fantasy Worlds—Everything Connected

Create and connect characters, locations, lore, items, and art inside one evolving universe. Build solo or bring co-authors, campaign groups, and friends along for the journey.

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Free to start · Build solo or together

The Thornreach world page in the Summon Worlds app

Your world, your way

One worldbuilding home, four ways to create

Build a setting for a novel, campaign, character, or the pure joy of seeing what has been living in your head.

For worldbuilders

Turn scattered ideas into a universe

Connect every person, place, object, culture, system, and event so your setting can grow without becoming impossible to manage.

Explore the worldbuilder path

Turn scattered ideas into a universe product preview

Central World

Your World

One connected home for everything you create.

Characters

People with histories, motives, abilities, and relationships.

About Summon Worlds

A home for every part of your world

Summon Worlds is a worldbuilding app for creating and connecting fantasy characters, locations, lore, equipment, artwork, and roleplay inside one evolving universe.

Keep characters, locations, equipment, and lore connected.
Build privately on your own or see collaborators shape the same shared universe.
Turn a creative spark into art, story, and roleplay.

Start building your world

Made in Summon Worlds

Give every part of your world a visual identity

Create visual references for characters, creatures, places, and artifacts so your setting feels recognizable to everyone exploring it.

A luminous purple-winged fairy in a moonlit fantasy world

A crystalline ice dragon created for a fantasy story

A magical cat character wearing ornate fantasy clothing

A wizard summoning a glowing orb inside an icy cavern

A dreamy robot character created with Summon Worlds

500K+
Global downloads: 10K+
Unique worlds: 100K+
Character chats: 30K+
Characters ready to meet

Worldbuilding in your hands

Go from a creative spark to a living world

Start anywhere, connect what you create, and keep discovering where your world can lead.

Create a world screen in the Summon Worlds mobile app

More than disconnected ideas

Build worlds that feel alive

A connected creative toolkit for the moment inspiration arrives—and for every relationship and story that grows afterward.

Keep every creation in context

Give every character a home, every item a history, and every idea a meaningful place in the world.

Make your world recognizable

Give characters, creatures, places, and artifacts visual references that feel at home in your setting.

Meet the people inside your world

Use in-character conversation to reveal motives, memories, relationships, and unexpected plot possibilities.

Your universe, connected

Summon every part of your story

Build a coherent world from the grandest kingdom to the smallest enchanted artifact.

Characters

Armor

Weapons

Spells

Items

Locations

Community spotlight

Explore worlds brought to life by the community

See what storytellers, game masters, writers, and artists are creating together in Summon Worlds.

Discover all community worlds →

EternalTitan4517

Bersau

Bersau stands as a sprawling tropical paradise where the traditional laws of kingdoms and nations hold no sway. This lush island archipelago has become a haven for seafaring rogues, corsairs, and buccaneers who have carved out their own society beyond the reach of any crown. Multiple settlements dot the coastline, each flying the distinctive black flags that signal their allegiance to pirate codes rather than any monarch. The sheltered bays teem with vessels of every description—from swift cutters to heavily laden merchant ships seized through cunning and steel—all bearing the marks of their free-sailing captains. Here, a pirate's worth is measured by their deeds and reputation rather than their birth or noble connections. The island thrives as a lawless frontier where adventurers and outcasts from distant lands gather to forge their own destinies. Bersau represents the ultimate sanctuary for those who reject the constraints of civilization and seek absolute freedom upon the open seas.

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vincent Wallace

Planet Vegeta"

Planet Vegeta looms as a crimson sphere of immense proportions, dwarfing most known worlds at twice the size of its terrestrial counterparts. This scarlet world orbits through a complex celestial dance around three brilliant suns, while two moons cast their own ethereal light across its surface, creating an otherworldly luminescence. The planet's gravity crushes down with devastating force—ten times more powerful than standard earthlike worlds—shaping all life and construction upon its surface to withstand such tremendous pressure. Across its desolate, cratered landscape lie gleaming futuristic cities arranged in precise circular patterns, monuments to the technological prowess of the Saiyan Race who call this harsh world home. Though largely barren and scarred by ancient impacts, Vegeta boasts towering mountain ranges that pierce its crimson skies and sparse oceans that shimmer with an otherworldly hue. This formidable world stands as a testament to the strength and determination of those who have mastered survival upon such an unforgiving celestial body.

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Elara Axiom

Acheron

Acheron is a supermax prison complex operated by the United States of America. The prison is being used to contain the most dangerous villains in the world. The prison is the most secure in the world and is considered the hardest prison to escape from. The prison's existence is kept secret from the public's knowledge. The prison is situated in a remote island far from civilization. The entire population of the prison is female because only females can use magic, the prison is designed for special people. Human rights are non existent here and the prison is extremely inhumane commits crimes against humanity which violates the Geneva Convention. From the outside, Acheron looks like a jagged scar in the polar landscape. Razor-sharp spires protrude from the pylons, intended both as antennae for interdiction fields and as a grotesque aesthetic. Surrounding the rings is an open kill zone barren of any cover, swept by automated turbine-driven flamethrower arrays, acoustic disrupters, and plasma lances calibrated to deter or terminate any unauthorized approach. Inside, Acheron is a labyrinthine nightmare of concrete, alloy, reinforced glass, and electromagnetic barriers. The entrance tunnels descend in spiraling ramps, lined with countless observation ports behind which guards monitor every movement. The central hub opens into a vast domed atrium, its walls a patchwork of titanium alloy panels and synthetic basalt. High above, a translucent force-field ceiling lets in fractured beams of the sun, though most light is drowned out by the hum of overhead maintenance drones and surveillance cameras. Corridors branch off in a honeycomb pattern, each segment housing a specific class of cell or facility. The cells themselves are crafted from a unique composite: bulletproof, flame-resistant, psychic-nullifying glass for windows and walls, layered over sonic-dampening alloys. Floors are made from specialized polymer tiles that can change texture on command—becoming slick with lubrica

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Fantasy author portrait representing a Summon Worlds creator story

“Summon Worlds creates characters through simplicity. It keeps every idea in its appropriate setting and adds depth to the lore and creativity in my writing.”

Dane Watson — “ValithreX”· Fantasy author

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