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Microsoft Releases Generative AI Version of '90s Classic Quake II

The demo is built on Microsoft Muse, a generative AI model it rolled out earlier in 2025, that can copy existing games based on training data.

 & Will McCurdy Contributor

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Microsoft has rolled out a free-to-play, AI-generated version of the ’90s first-person shooter classic Quake II.

Rather than using preset locations and enemies that are the same every time you play, like in a traditional video game, the new game's content is generated on the fly by a Microsoft AI model, based on the content and style of the original Quake II.

The new in-browser game is powered by Muse AI, a generative AI model designed by Microsoft to assist video game developers. Muse, developed in partnership with UK-based game studio Ninja Theory, was trained on data collected from humans playing the 2020 Xbox game Bleeding Edge, including “more than 1 billion images and controller actions."

Given time, Muse can slowly replicate the visuals and gameplay of an existing video game, according to Microsoft’s research (provided it works as planned).

But if you’re interested in giving the in-browser game a whirl, maybe temper your expectations. The resolution is capped, and the controls seem slow and laggy by modern standards. Microsoft also appears to have restricted how long you can play.

Microsoft has been vocal about the potential of the new Muse model to help preserve classic games, which run the risk of becoming lost media or simply languishing in obscurity. In a video announcing the model in February, Microsoft Gaming CEO Phil Spencer discussed how the new models open up “a ton of opportunity” because of their ability to “learn completely how a game plays without the necessity of the original engine running on the original hardware.”

Despite the potential for generative AI to assist developers, it’s unknown how the game industry will react to these types of innovations in the long term. We’ve seen creatives in other fields, from music to visual art to fiction, speak out about the potential of AI to deprive them of deserved revenue. Meanwhile, the video game industry was hit by some serious layoffs over the past year, including at Microsoft's own gaming division.

Regardless, Microsoft certainly isn't the only tech giant making investments in generative AI for gaming. Last year, Google showcased an AI-generated simulation of iconic 90's shooter Doom, which, like Microsoft's recent effort, didn't rely on code from the original game. Meanwhile, start-up Virtual Protocols demonstrated a text-to-video-powered version of 1985's Super Mario back in September 2024.

About Our Expert

Will McCurdy

Will McCurdy

Contributor

I’m a reporter covering weekend news. Before joining PCMag in 2024, I picked up bylines in BBC News, The Guardian, The Times of London, The Daily Beast, Vice, Slate, Fast Company, The Evening Standard, The i, TechRadar, and Decrypt Media.

I’ve been a PC gamer since you had to install games from multiple CD-ROMs by hand. As a reporter, I’m passionate about the intersection of tech and human lives. I’ve covered everything from crypto scandals to the art world, as well as conspiracy theories, UK politics, and Russia and foreign affairs.

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