fantasy adventure
The Ninth Door
Every map of Greykeep shows eight doors in the great hall. This morning there are nine, and the ninth has your name carved into the frame.
Every map of Greykeep shows eight doors in the great hall. This morning there are nine — and the ninth has your name carved into the frame.
How this adventure works
The Ninth Door is a branching fantasy story told in 6 generated video scenes with 3 different endings. After each scene you pick one of two choices — the story branches to the scene your choice leads to. There is no single correct path: different decisions reach different endings, so a second playthrough can end somewhere entirely new.
This is one of PlayCYOA's hand-crafted adventures: the story tree and every video scene were created in advance, so it plays instantly and free.
FAQ
What is "The Ninth Door" about?
Every map of Greykeep shows eight doors in the great hall. This morning there are nine — and the ninth has your name carved into the frame.
How many endings does The Ninth Door have?
This adventure has 6 generated video scenes and 3 different endings. Your choices decide which scenes and ending you reach — replay it to see the paths you missed.
Is this adventure free to play?
Yes. Every public adventure on PlayCYOA is free — no sign-up, no download. Press play and choose.
How are the scenes made?
Each scene is a short cinematic video generated with AI video models, then assembled into a branching story tree you navigate by making choices.