Once Upon a Prompt

Once Upon a Prompt is a cooperative storytelling game where every player writes the next chapter. Team up with friends — or players from around the world — and build a shared story together, one turn at a time. There's no rush and no pressure. Take your turn whenever you have a moment: add a few lines, steer the plot, and watch a unique tale unfold from everyone's imagination combined. Each contribution becomes part of something none of you could have written alone. HOW IT WORKS • Create or join a room and pick a genre or theme • Get an AI-generated opening line to spark the story • Take turns adding to the narrative, one paragraph at a time • Stuck for ideas? Ask for a creative hint to keep the words flowing • Vote together on the perfect title when the story is complete • Export your finished story as a beautiful PDF to keep and share WHY YOU'LL LOVE IT • Relaxed, turn-based play — no timers, no stress • Asynchronous: play with anyone, anytime, across the globe • Endless variety — every story is shaped by the people writing it • Creative fun for writers, dreamers and storytellers of all kinds Whether you're a seasoned writer or simply love a good story, Once Upon a Prompt turns shared imagination into an experience worth passing on. Once Upon a Prompt is in early access — we're actively improving it and would love to hear your feedback.