Yesterday, Microsoft Xbox debuted Muse, "a generative AI model designed for gameplay ideation," alongside an open-access Nature.com article and corresponding blog post with a YouTube video. Not sure what "gameplay ideation" means? While Microsoft defines it as generating "game visuals, controller actions, or both," its actual functional purposes are pretty limited and certainly don't do anything like skipping an actual game development pipeline.
That said, some of the data is still interesting. The training was done at scale on H100 GPUs. It required about 1 million training updates to extend just one second of real gameplay into an additional 9 seconds of responsive, engine-accurate simulated gameplay. Training data was primarily extracted from existing multiplayer gameplay sessions, though.
