✦ 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.

Start building now See how it works

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 →

JackCarrot

The Hidden Realms

Dor Amril, known as The Hidden Realms, exists behind an impenetrable veil of arcane magic that conceals it from the outside world. Access to this mysterious realm is granted only through ancient portals or the performance of esoteric rituals, making it a sanctuary for those who know its secrets. The world itself forms a ring of land surrounding a vast central ocean, presenting a landscape of dramatic contrasts—towering mountain peaks pierce storm-laden skies while deep lakes mirror the heavens below. Though magic is uncommon and regarded with awe by its inhabitants, the most potent forces in Dor Amril stem from legendary relics of immense power, remnants of a world shaped by wish magic itself. A patchwork of competing nations struggles for dominance across this realm, while its diverse peoples—including humans, demi-humans, and beings from other planes of existence—contend with relentless swarms of chaos wyverns and extraplanar invaders who threaten their survival. The denizens of Dor Amril possess technology that blends the medieval with the innovative, employing both

6 views

Zarif

Antithica

Antithica stands as a realm of extraordinary abundance, where forgotten arcane forces permeate the land and formidable creatures roam freely across its expanse. This frontier world offers countless opportunities for those brave or foolish enough to seize them, yet prosperity comes with a grave warning—unchecked avarice has proven to be the undoing of many who came before. Adventurers may choose to descend into treacherous dungeons and excavate the technological remnants of fallen starships and lost empires, seeking glory and treasure in the depths. Alternatively, those seeking stability can establish settlements and communities within the growing frontier towns, building lives of purpose and permanence. The most ambitious explorers venture into Antithica's savage wilderness or dare to venture beyond the world itself, charting courses through the cosmos to discover what mysteries lie among distant stars. Every decision made here carries weight, determining not merely survival but the very shape of one's future. In Antithica, the promise of untold riches and boundless potential awaits those willing to forge their own path.

8 views

MysteriousSage4937

Sinnissippi Valley

Sinnissippi Valley harbors a delicate balance of supernatural forces hidden beneath the veneer of ordinary civilization. A powerful witch coven has maintained dominion over these lands for generations, their arcane practices woven into the very fabric of the region's history. A feral pack of werewolves roams the forested peripheries, their existence carefully concealed from mortal eyes through ancient pacts and careful restraint. Solitary vampires drift through the valley's shadows, their immortal lifespans granting them intimate knowledge of secrets buried deep within the community. These creatures of the night have learned to coexist with unsuspecting townsfolk through centuries of careful discretion and strategic deception. The supernatural and mundane worlds intersect here in an uneasy truce, where enchantments mask the truth and old magics preserve the veil between worlds. Those perceptive enough to notice the strange occurrences and unexplained disappearances sense that something ancient and powerful stirs beneath Sinnissippi Valley's peaceful surface.

7 views

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

Learn, plan, and create