Summon Worlds vs Sandbox & Dungeons

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/

Sandbox & Dungeons is a living-world simulator built for D&D 5E and Pathfinder Game Masters. It generates a complete world in seconds — continents, factions, races, religions, economy and threats — then lets it evolve on its own: wars are fought, empires rise and fall, heroes grow old, plagues spread, and Dark Kings threaten to conquer it all. You decide how much the world runs on its own and how much you control from the DM Intervention panel: declare wars, found cities, trigger disasters, or revive fallen kingdoms with a single tap. WORLD CREATION · Choose the number and size of continents, the dominant race, and which races are present (17 races from D&D and Pathfinder). · Six starting themes: Free, Golden Age, Age of Wars, Dark Age, Age of Exploration, and Ancient Era. · Every world generates factions, rulers, an 18-god pantheon, threatening creatures, and five unique prophecies. A WORLD THAT LIVES ON ITS OWN · Advance time in days, weeks, months, or years and watch it evolve: births, wars, alliances, famines, plagues, migrations, and much more. · A complete chronicle of everything that has happened in your world, event by event. · A Dark King may rise as the final threat; build a resistance coalition to defeat him. TOOLS FOR YOUR TABLE · Dungeon generator with visual maps (or draw your own by hand in the editor). · Bestiary with 155 creatures from the SRD 5.1: full stat card, auto-generated loot saved on every creature you place in your world. · Upload your own images for settlements, dungeons, NPCs and creatures — with a dedicated thumbnail for NPCs and creatures that replaces the icon on their card. · Shop generator with 300+ items across categories (including the option to create atypical shop types for a settlement), NPCs with side quests, on-demand adventure hooks, and your own quest log. · Track your party's sheet (HP, AC, attributes) and a log of played sessions. · Organize several different campaigns within the same world. PRIVACY AND SAVING · Everything is saved on your device. No data ever leaves your phone. · Auto-save: close the app and your world is right where you left it. · Export or import worlds as a file to back them up or move them to another device. · Protect your games with Face ID or Touch ID. 5E compatible. Sandbox & Dungeons is an independent work and is not affiliated with or endorsed by Wizards of the Coast.