Muse is Microsoft's new generative AI for game development that promises to be a gameplay concept tool – it will ideate playable ideas, building game visuals, controller inputs and more. It sounds groundbreaking but Muse feels like a tech experiment rather than the game development revolution Microsoft is pitching.

Despite a decade of AI growth, Cook says, there's no method yet to measure what exactly an AI model has captured and what it has not. Muse is able to provide grainy gifs of one fairly simple video game based on seven years of footage, but it is not a solution for holding everything about a game or every possible outcome of what players could do.