World Builder
Turn a handful of choices — genre, landscape, magic, cultures, species — into an entire fictional universe, complete with history, geography, pantheons, cities, conflicts and creatures. Perfect groundwork for novels, tabletop campaigns, games and worldbuilding wikis.
Watch it in action
Pick your world's foundations → click Generate → get a fully realised universe you can build on:
Step by step
Lay the foundations
Give your world a name (optional) and choose a Genre / Tone — High Fantasy, Cyberpunk, Space Opera, Grimdark and more. Then set the Primary Landscape (floating islands, endless ocean, ring world…) and the Magic / Technology Level.
GenreLandscapeMagic level
Add civilizations & features
Pick your Major Civilizations and Dominant Species, then Ctrl-click any Extra World Features you want fleshed out — magic system rules, a pantheon of gods, lost civilizations, a bestiary, trade routes, languages, prophecies and more. Click Generate Complete World and a full-screen overlay tracks the build.
Read & save your world
You get a vivid, immersive write-up covering geography, history, cultures, magic rules, cities, conflicts and creatures — everything you need to start telling stories in it. Hit Copy & Save to Library to keep it.
Example output
A real run (Aetherion · High Fantasy · Floating Islands · High Magic · Classic Fantasy Races):
Aetherion is a shattered sky-realm of hundreds of floating islands drifting through the endless Aether Sea… held aloft by veins of luminous Aetherite crystal that pulse with raw magical energy… lit by three suns (Auralis the gold, Veyra the silver, and the blood-red Khor)… Five thousand years ago the arrogant archmage-empire of Vael'Thar attempted to siphon the heart of the world-god Aetherion itself; their ritual tore the planet apart… Seven gods survived the Shattering and imposed the Divine Pact — no god may directly walk the islands…
Pro tips
- Start broad, then regenerate — run once with a genre and landscape, then feed the parts you love back into a second run with more Extra Features ticked.
- Ctrl-click builds a rich brief: a Pantheon + Bestiary + Languages combo gives you instantly usable campaign material.
- Leave the World Name blank if you want the AI to invent one for you.
- The output is plain prose — paste it into your novel outline, a TTRPG wiki, or back into any chat AI to expand a single city or character.