World-first Creative Platform
Grow
Your World.
A living world blooms from the seed of an idea.Create, nurture, and explore alongside AI——A creative platform where the world itself takes center stage.
A Different Approach
Not a"story"— a living world
Other tools start with the output: "write a novel," "manage TRPG settings." Worldseed is different. The world itself is the protagonist. Stories, characters, and visuals all emerge naturally from the world you build.
Features
Six forces for building worlds
Build a world
Start with a fragment of an idea. "A world where magic has run dry." "A civilization beneath the sea." Through dialogue with AI, vague images grow into rich world lore.
Living Detail (LOD)
Focus anywhere in your world, just like zooming a map. Places you focus on become richly detailed; distant places stay abstract. A world of infinite resolution.
Living characters
Characters who inhabit your world carry real personalities and relationships. Their motivations are consistent with the world's logic, and they move naturally through your stories.
Write from within
Tell stories from any character's perspective. History, culture, geography — every element of your world provides coherent context for everything you write.
Invite friends
Share your world and explore or co-create together. Grow a world with TRPG companions, or open it to readers and let them wander through it.
AI as collaborator
You set the direction; AI fills in the gaps. It detects contradictions and maintains consistency. Creative control always stays in your hands.
How It Works
A world in three steps
Plant the seed
"An island nation where steam engines and magic coexist." Start with a single idea. AI draws out the shape of your world through questions.
Nurture it
Zoom in on anything that interests you. City maps, daily life, political systems — LOD lets you dig infinitely deep. AI auto-detects contradictions.
Stories emerge
Once your world has grown, spin stories within it. Novels written from a character's perspective, TRPG sessions, collaborative exploration with friends.
Explore a Demo World
Try it out first
No signup required. Explore the demo world "Aetheria" freely and experience what Worldseed can do.
Aetheria — Between Sky and Earth
FantasyA world where a once-united continent was torn into the sky. The floating city-archipelago known as The Canopy Isles and the sunlight-starved ground civilization The Root Realm maintain a cycle of conflict and trade. The Canopy Isles are kept aloft by the power of floating crystals called Aether Crystals, while The Root Realm shares information and life force through a vast underground mycelium network known as the Memory of the Earth. The balance between them is beginning to waver with the omens of The Great Fall — a catastrophe that comes once every millennium.
Aether Refinement
The supreme technology of The Canopy Isles. An alchemical technique that refines Aether Crystals in stages to draw out higher functions including buoyancy, communication, and perceptual expansion.
🎭Lichtgesang (Light Chanting)
A light art passed down in The Canopy Isles, where Aether crystals resonate when a singer sings at certain pitches.
🎭Mycelium Cuisine
A unique food culture passed down in The Root Realm using mycelium and bioluminescent organisms.
🎭The Eve-of-Fall Taboos
A system of taboos and folk traditions about The Great Fall shared by both sides — a rare cultural element held in nearly the same form by both civilizations.
Living Level of Detail
The places you focus on
come alive
Focus anywhere in your world, just like pinching out on a map. From continental overviews to the contents of a shelf in a side-street shop.
Places you're not looking at stay abstract. The resolution you need, when you need it.An infinite world, at finite cost.
Pricing
Built for your creative style
Start building worlds on the free plan. Upgrade when you're ready to grow something bigger.
Free
Perfect for exploring world-building
- 1 world
- Basic AI dialogue
- Up to 5 characters
- LOD up to 3 levels
Pro
PopularFor serious world-builders
- Up to 10 worlds
- Advanced AI dialogue (Opus)
- Unlimited characters
- Unlimited LOD
- World sharing & invites
- Contradiction detection & consistency checks
Premium
For professional creators & teams
- Everything in Pro
- Unlimited worlds
- Team collaboration
- API access
- Priority support
- Custom AI model selection
A world you've never seen
is waiting for you
Create a free account and start growing your world today.
Free plan available · No credit card required · Cancel anytime