Summon Worlds: Worldbuilder

Fantasy Writing & RPGs

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Bring your fantasy worlds to life with the new World Map editor, Creatures, and new AI models for artwork, character chat, and RPG adventures. Download the Update today! Build a fantasy world you can organize, visualize, and actually explore. Summon Worlds brings worldbuilding, character creation, and AI roleplaying together for writers, worldbuilders, game masters, and tabletop RPG players. Create connected characters, Creatures, locations, maps, and lore, then explore your setting through character chat and interactive adventures. Free to start, with optional in-app purchases. No ads, ever. BUILD A CONNECTED WORLD Create characters, Creatures, locations, factions, weapons, items, spells, and lore. Connect the people, places, and ideas behind your stories so you can keep building without scattering everything across separate notes. Use custom categories to organize your creations your way, and customize how your world is presented. MAP THE PLACES YOU IMAGINE Create and edit maps with the World Map editor. Give your fantasy setting a visual home alongside its characters, locations, and history. DEVELOP CHARACTERS AND RELATIONSHIPS Build character profiles with backstories, personalities, classes, alignments, stats, and artwork. Define friendships, rivalries, romances, family bonds, and alliances. Keep these connections alongside the lore that gives them meaning. Chat with your characters to explore their voices, personalities, relationships, and story possibilities. CREATE WITH AI Generate artwork and visual references for your characters, locations, and worlds. Develop names, descriptions, backstories, and lore when you want help moving an idea forward. Choose from AI models for image generation, character chat, and adventures while shaping the results around your creative vision. STEP INSIDE WITH ADVENTURE MODE Play as one of your characters in an interactive, AI-guided RPG adventure. An AI game master narrates the story, responds to your decisions, and draws from your world's characters, locations, relationships, and lore. Explore an open-ended adventure or begin with a structured quest, premise, and goal. Adjust story pacing, response length, and suggested actions to suit the experience you want. BUILD SOLO OR COLLABORATE Develop your world privately, publish creations when you're ready, or invite collaborators into a Shared World to build together. Explore worlds and creations from the community for inspiration. MADE FOR YOUR NEXT STORY Plan a fantasy novel, prepare a tabletop campaign, develop an original character, or explore a world of your own creation. Keep your ideas connected as your universe grows. Download Summon Worlds and start building your next world. Discord: https://discord.com/invite/XXseerhc2u TikTok: https://www.tiktok.com/@summonworlds YouTube: https://www.youtube.com/@summonworlds Questions or feedback? support@summonworlds.com Terms of Use: https://terms.summonworlds.com/ Privacy Policy: https://privacy.summonworlds.com/

  • 4.5
    out of 5
    365 Ratings

New Maps, Mew Creatures, and more ways to bring your worlds to life! • New World Map editor Create and customize maps for your fantasy worlds, giving the places you imagine a visual home. • Introducing Creatures Creatures now have their own dedicated creation type alongside characters and locations, expanding what you can build in Summon Worlds. • New AI models Explore new AI models for image generation, character chat, and AI RPG adventures—from visualizing your ideas to stepping inside the worlds you create. • More ways to organize Use custom categories to organize your worldbuilding around the way you think and create. • Expanded world customization Personalize your world's presentation with more control over how your creations come together. Open a favorite world and bring your next idea to life.

The developer, OPENFORGE LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Financial Info
    • Contact Info
    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
OPENFORGE LLC
Size
143.6 MB
Category
Adventure
Compatibility
Requires iOS 15.6 or later.
  • iPhone
    Requires iOS 15.6 or later.
  • iPad
    Requires iPadOS 15.6 or later.
  • iPod touch
    Requires iOS 15.6 or later.
  • Mac
    Requires macOS 12.5 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English
Age Rating
13+
  • 13+
  • Infrequent
    Cartoon or Fantasy Violence
    Profanity or Crude Humor
    Mature or Suggestive Themes
    Horror/Fear Themes
    Contests
    Guns or Other Weapons

    Contains
    Messaging and Chat
    User-Generated Content
In-App Purchases
Yes
  • Summon Worlds Pro $9.99
  • Summon Worlds Pro (Monthly) $9.99
  • Summon Worlds Pro $9.99
  • Mana Refill $4.99
  • Mana Refill 300 $2.99
  • Mana Refill 1200 $9.99
  • Summon Worlds Pro (Annual) $59.99
  • Mana Refill 2600 $19.99
  • Summon Worlds Ultra $19.99
Copyright
© 2026 OPENFORGE LLC