Last One Out
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

Play it: https://wujotung9627-svg.github.io/last-one-out/ (Chinese or English, about five minutes, in a desktop browser). Wear headphones: at the end someone calls your name, and you answer out loud (allow the microphone) or press Here. This is the judges' version: one night that Meta's models generated live, played back in your browser, with nothing to install and no key. The year and the three memories are that night's; you type or record your name. In Taiwan, the student on duty is the last one out: they stay after class to clean the room and lock the door. Last One Out turns three memories and a year into a photo-real school at night that you step into. Meta's models photographed it, an old Taiwanese school with the duty student's red bucket and a half-mopped floor, and you walk through it in 3D, three times. Each time, three half-wiped lines of chalk are on the board, each grown out of one of the memories; you erase two, and the school changes around the one you kept: the doors are papered with blank cards, a school shirt hangs from a grille that was empty, banyan roots close the end of the corridor, and your teacher, in a cracked porcelain mask tied on with red string, is standing behind the door you open. In the teachers' office your exam papers carry your name in red, and the ranking pinned on the board has you last. On the last walk a basketball rolls to your feet, and as the lights stutter a figure with a paper-wrapped head comes at you out of the dark. The classroom is full, every back turned to you under hanging roots. The speaker calls your name. You answer. Every head turns, every face smeared. The night ends with the teacher watching you from the door while the credits roll, and a page of a Taiwanese contact book dated in your school year, written from what you did: the lines you kept and wiped away, how long you took to answer, and a note from the teacher who never said your name. No 3D modelling and no hand-made art: every photo, every change and every scare was made by Meta's models. Why it matters: everyone carries a school they can't go back to: a teacher who never said their name, a ranking pinned on the wall. Horror games are usually one designer's nightmare; here the place, the fear and the ending come from the player's own memories, so every player gets their own school, and it changes each time it is remembered. It also shows what Meta's models now let one person do: a personal, photo-real game built in two days with no 3D artists, for about $15 of model calls across every test night. What's next: Meta Quest. Every place is already a 3D surface built from the depth map Muse Image draws for each photo, so the next step is to open the same walk in the Quest browser with WebXR: standing in the corridor, turning your head to the sound of the basketball, answering the roll call out loud in the headset. VR needs places to be in, and building them by hand is slow and expensive; here every player's own memories become a place of their own.