Runway's Game Worlds beta presented interactive stories that generate accompanying images as play unfolds. The August 2025 announcement offered preset scenarios, including a heist game, a mystery and an interactive history game, plus custom worlds, with a text-oriented Chat Mode and a more visually driven Comic Mode.
The creative experiment was to let users shape a story through play and build their own settings and characters. Custom games were private by default and could be made public. Real-time video generation appeared in the announcement as a future addition as Runway's General World Models improve, so the launch experience centered on generated narrative and images.