Fellweave

A tabletop RPG with an AI Game Master.
Play alone, with friends, or together around a single screen.

Coming soon

There is more

Every campaign is unique, set in one of the manifestations of Solenne.

Four travellers on a wooden bridge at dusk, reading a weathered signpost at a forest crossing.
Plate I · The Threshold

Dusk on the forest road. The party seeks shelter. At the crossing, a weathered signpost stands out of place.

What is Fellweave

Fellweave is an AI-powered tabletop RPG engine. Play solo, invite others, or gather around a TV with friends. Every campaign is unique, every choice matters, and no two stories unfold the same way.

Fellweave's default setting is Solenne, a world created by Cecida, a curious world-god who shaped the land and then stepped back to watch what would grow there. Woven through everything is the Essava, the connective tissue of magic, vitality, and supernatural character. Some campaigns barely feel its hum; others move within its current.

A circle of standing stones on a clifftop above an islanded sea. A spiral of violet light rises into a churning sky.
Plate II · The Watcher Speaks

A circle of standing stones above the archipelago. There is an anomalous Essava burst connecting with the sky.

Loimi, the AI Game Master

A storyteller that remembers.

Loimi is the agentic Game Master at the heart of Fellweave. A large language model paired with a holistic world simulation, working in real time as you play.

Loimi creates and remembers the people you meet, the places you visit, the deals you cut, and the consequences you have not yet finished paying for. NPCs hold grudges. Settlements rebuild. Reputation travels ahead of you. The world keeps its own time when you are not looking.

Encounters, locations, narrative hooks, combat, economy, world events: all of it is generated and managed by a single coherent Game Master, in response to what you actually do, not from a fixed branching script.

No prepared adventure, no fixed map. The story is shaped by what you do.

A party of four looks down from a wooded ridge of birch trees onto a vast valley with a winding river and a distant mountain.
Plate III · The First Vista

From a ridge of birch, the valley unfurls under an ancient mountain. The world has just decided what it is.

A world that adapts

Twenty-seven parallel versions of Solenne, in one cosmology.

Every campaign is shaped by three sliders. Each has three settings. The result is a world tuned to the table you brought.

  • Darkness. Bleak horror, neutral grit, or lighthearted adventure.
  • Fantasy level. Grounded realism, subtle wonder, or vivid arcana.
  • Conflict. Pastoral calm, contested borders, or open war.

A procedurally generated world map gives every campaign a real geography. Biomes, settlements, road networks, regions, travel routes. The Game Master furnishes the rest as you go: who lives in the village over the ridge, what happened the night before you arrived, why the temple bells are still ringing.

The same engine, three sliders, twenty-seven flavours. Solenne is wider than any one party will ever see.

A causeway across a still mirror lake leading to an immense jagged citadel at twilight, a single torch lit at its gate.
Plate IV · The Gate Already Lit

A causeway across mirror water, and a citadel that opens only for those worthy of its secrets. The torch is already lit at its gate.

Immersion

Read it, hear it, see it, feel it.

Fellweave is a multimodal experience. The story arrives as text, voice, image, and music, all of it generated and timed to what is happening in the fiction.

Narration

Distinct AI voices for each character. Hear them speak, or read the page in silence.

Image

Character portraits, location plates, and mood paintings rendered during play. Visuals reflect the campaign's tone, the season, and the time of day.

Music

Dynamic underscoring that follows the narrative. Calm before a forest path, tension before a door, weight on the eve of a battle.

Four figures among barrow stones at the edge of a sea cliff at sunset, one resting a hand on a tall menhir, a small mausoleum glowing in the distance.
Plate V · What the Stones Remember

Among the barrow stones at the cliff's edge, the warrior listens to the dead. Some doors should not be opened alone.

Play together

Play alone. Or play together.

Fellweave plays solo without compromise. The same engine runs the campaign whether you are alone with a cup of tea, or four friends each at your own place.

  • Solo. A full Game Master, world, and party, on your own time. The same depth as a group session.
  • Online with friends. Friend codes, live session joining, and peer-to-peer voice chat.
  • Around a TV. Cast the game to any screen. Each player uses their phone as a controller. Roll dice with the people in the room. Pour the wine or tea.

Bring people. The world is more interesting with witnesses.