Browse AI RPG Worlds

Explore handcrafted worlds and player-created adventures. Pick a setting, choose a character, and let the Spark engine narrate your story.

Isekai'd with My Best Friend

by Naoki

Fantasy
Adventure
RPG

You were living an ordinary life when a blinding light tore you and your closest companion straight out of the real world and dropped you both into Altoria, a kingdom on the brink of ruin. The summoning ritual was supposed to produce one hero with legendary power, but something went wrong: the skill got split. Now one of you wields a combat ability that could level mountains, while the other is stuck with something that sounds like a punchline. Together, you must survive a world full of monsters, politics, and ancient secrets long enough to figure out if two half-heroes can actually save the day.

I Rescued a Talking Cat and Now I Fight Monsters in a Sparkly Outfit?!

by Naoki

Fantasy
Modern
Adventure

You were just trying to survive junior year when a small, opinionated cat landed in your arms and handed you a wand that glows like a piece of the night sky. Now the city is full of Glitches, creatures that shouldn't exist, and you're the only one who can see them. Homework, secret identities, and the fate of the world: no one said growing up was easy.

The Midnight Shift at the Vinyl Crypt

by Naoki

Modern
Romance
Slice of Life

You took a graveyard-shift job at an underground indie record store because it was the only opening left. Your coworker is Rowan Blackwell: all black velvet, sharp opinions, and zero tolerance for what she calls 'background music people.' But the hours between 3 and 5 AM have a strange way of dissolving armor, and you're starting to suspect there's a reason she never takes a shift with anyone else.

Neon Drift: Sector 4

Mature

by Naoki

Cyberpunk
Sci-Fi
Action

You are an independent courier in New Meridian, a rain-soaked megacity where corporate towers own the sky and the Iron Lotus owns the streets. A terrified contact just pressed a sealed hardcase into your hands and vanished, and now three mega-corporations and a street syndicate are all calling your comm at the same time. Everyone wants it. Nobody is asking nicely.

The Last 48 Hours

Mature

by Naoki

Modern
Survival
Dark

The government says the infection in the outer boroughs is contained. It is not. You have forty-eight hours before military quarantine seals every road out of the city, and the people you love are still inside. The shelves are emptying, the power is flickering, and the streets that look almost normal are about to stop looking that way at all.

The Gilded Cage of Silverleaf

Mature

by Naoki

Fantasy
Dark
Mystery

Silverleaf is a city of white spires and eternal amber light, where the Elves have lived so long they have forgotten how to want anything. You have been sent here as a human envoy, but paradise has teeth: the longer you stay, the more the city's beautiful rot reaches for you. Secure your treaty, uncover the truth, or lose yourself entirely to the nectar and the mirrors.

The Infinite Deep: Descent into the Ever-Shifting Maw

Mature

by Naoki

Fantasy
Adventure
Action

The Ever-Shifting Maw has swallowed thousands of delvers and remembered none of their names. You owe the Delver's Guild more coin than you can count, and the only way out is down. But the dungeon rearranges itself every night, the monsters get stranger the deeper you go, and something in the dark has started following you.

Hollow Crown: Blood and Sovereignty

Mature

by Naoki

Fantasy
Dark
Adventure

The old king is dead without a clear heir, and three ambitious claimants are already sharpening their knives. You hold Ashveil Keep, a crumbling fortress at the kingdom's crossroads: valuable enough to make you a target, small enough that no one expects you to survive. Every alliance costs something. Every betrayal has a price. The question is not whether your hands will get dirty, but how much of yourself you're willing to spend.

The Arcanum Archives

by Naoki

Fantasy
Supernatural
Comedy

The Grand Arcanum is the greatest magical library in the known world, and it is currently on fire. Not literally, at least not yet, but you are the new Head Archivist, the books are staging a rebellion, and someone just checked out a tome that rewrites its own contents. Welcome to the job.

Starfall: Aethelgard

by Naoki

Sci-Fi
Adventure
Mystery

The Galactic Federation's finest scout ship, the Aethelgard, is all that stands between the known universe and a creeping void called the Silence. Newly promoted and untested, you must lead a brilliant but fractious crew into the unknown before entire star systems disappear forever. Every choice you make out here echoes across a thousand worlds.