✦ 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 →

Bobbyx

Yggdrasil

Yggdrasil manifests as nine magnificent realms suspended like glowing fruits from the branches of an immense cosmic World Tree, each domain a distinct plane of existence with its own laws and wonders. Asgard blazes with magnificent golden architecture bathed in perpetual twilight, crossed by shimmering bridges of solidified light, while Álfheim's silver woodlands glow with enchanted foliage that falls like captured starlight through an eternal dusk. The verdant expanses of Vanaheim flourish with abundant harvests and mystical waters, contrasting sharply with Niðavellir's subterranean depths where dwarven forges burn eternal and precious metals line cathedral-like caverns of obsidian stone. Midgard stands as the familiar realm of mortals, featuring temperate forests, sprawling kingdoms, and natural weather patterns that ground the multiverse in relative normalcy. The outer reaches of Yggdrasil grow increasingly hostile and extreme—Jötunheim's towering peaks pierce storm-wracked skies, Niflheim crystallizes under perpetual arctic conditions, Helheim decays into

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Enders_Cave

Realm Of Ancaria

The realm of Ancaria is a captivating world filled with natural wonders. Lush forests, towering mountains, and rolling hills create a breathtaking landscape, while a sparkling sea with a stunning dark beach adds to the enchanting beauty. This land is ruled by the beloved and just King Nathaniel, who has dedicated his reign to uniting all people and fostering peace, mercy, and kindness. The inhabitants of Ancaria are kind and courageous, embodying the spirit of their benevolent king and working diligently to preserve the natural splendor that surrounds them. The culture of this realm is rich and diverse, with each village boasting its own unique traditions and customs, yet all are bound by their shared devotion to their king and their commitment to living in harmony. Ancaria is also home to magnificent rock formations that inspire awe and serve as a testament to the strength and resilience of its people.

Knights
Fantasy

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Streicher

The Old Guardian

An immense oak tree of legendary proportions rises nearly nine hundred meters skyward, its colossal trunk stretching three hundred meters across, crowned by branches that sweep outward in a magnificent canopy spanning eight hundred meters in radius. Countless civilizations and beings across the ages speak of this ancient sentinel as an eternal fixture of creation itself, a witness to the world's very genesis. Its verdant crown remains pristine and unblemished, free from decay or disease, while its massive trunk and sprawling root network show no sign of rot, decay, or parasitic corruption—a testament maintained by the countless creatures who make their homes within its shelter and contribute to its perpetual vitality. Throughout recorded history, The Old Guardian has endured apocalyptic tempests, devastating hurricanes, catastrophic floods, and raging infernos, each time emerging from destruction with scarcely a mark upon its ancient wood. Those fortunate enough to encounter this towering colossus often experience an uncanny sensation of being perceived by an intelligent, watchful presence—a gaze both vigilant and strangely benevolent, though no visible observer can ever be found. Despite this mysterious guardianship, no being of any race, nature, or origin—mortal or divine, beast or dragon, good or evil—has ever succeeded in bringing harm to its sacred form, as though some fundamental force shields it from malevolent intent.

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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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