AI is tearing Xbox games apart, so Microsoft built a lab to join in

For about as long as there have been video games, there have been people taking them apart. Decompiling a game, turning the shipped machine code back into something a human can read and edit, used to be a years-long labor of love for a few obsessives. The fan projects that rebuilt classic console games line by line took small teams ages.

That timeline has collapsed. Lately, modders using AI coding agents have been pulling apart big commercial games and putting them back together in places they were never meant to run. Shacknews points to Call of Duty: Black Ops and Minecraft running in a web browser. There's a viral clip of Minecraft's Steve fighting an Elden Ring boss, and Video Games Chronicle mentions Mario-style platforming grafted into Elden Ring. Windows games are being translated to run natively on Apple Silicon Macs. VGC says these projects were powered by Anthropic's Claude Opus 5.5 model, a detail the other coverage doesn't confirm.

Publishers have usually answered this kind of thing with takedown notices. On Tuesday, Xbox answered with a memo.

What Sharma actually wrote

Xbox CEO Asha Sharma told staff she is forming Xbox Labs, which the memo styles as "LABS," and asked Xbox's chief technology officer, Scott Van Vliet, to lead "a small group of game makers, engineers and scientists." The note was published on Xbox Wire, and a sign-up page is already live at labs.xbox.com.

The memo describes the modding wave in language that's almost admiring. Sharma writes about games "rapidly decompiled and rebuilt to run on hardware they were never originally designed to support," and notes that "many of the biggest games in the world have been remixed into the source code of another." According to VGC, she also pointed to browser ports built on WebAssembly and WebGPU, with WebGPU closing in on 90% global browser support. These experiments, she says, challenge "the tether between software and hardware, the boundary between creation and play."

Then she makes the business case, and it's the most interesting paragraph in the note. "Coding became the first major workload for agents because they can write, run, and test software," Sharma writes. Games share those properties. And "people spend more than 72 billion hours a year playing XBOX games," which she puts at roughly five times the time spent writing code worldwide.

Read that again from a platform owner's point of view. If AI agents got good at code first because code is easy to test, and games are code that a huge audience already tests for free every day, then games may be the next big thing agents learn to build, remix and port. Microsoft would like to be the company holding the tools when that happens, ahead of the modders who are doing it for free.

The part about IP

Nothing in the published memo reads like a threat. The closest it comes is a promise that Xbox's priorities haven't changed, including its hardware business, something it calls the "4Cs" and "being responsible stewards of IP and the communities built around it." VGC notes the memo never defines the 4Cs.

That restraint matters because Microsoft owns some of the games getting torn apart. Call of Duty is a Microsoft property since the Activision Blizzard deal. Minecraft is Microsoft's. When an AI agent decompiles Black Ops and gets it running in Chrome, the company whose lawyers would normally send the letter is now the company praising the energy.

Sharma says LABS will "build in the open," and that Xbox will "share the tools we build with developers across the industry." She says success will be measured by whether more people are playing and creating. There's no word on budget, headcount, timeline or a first project, according to VGC. For now it's a team, a mission statement and an email sign-up.

The timing fits a wider pattern. Shacknews notes the announcement came a day after Epic Games CEO Tim Sweeney confirmed Epic is leaning further into AI for game development. The big platforms seem to have decided the AI wave in games is coming either way, and they'd prefer to be the ones selling the surfboards.

Still, there's an odd tension built into the whole thing. The decompilation scene grew out of preservation: people who wanted old games to keep running after their platforms died, and who didn't trust publishers to do it. AI agents have turned that slow archival craft into something anyone with a subscription can try over a weekend. Microsoft's answer is to hire scientists to do the same thing in-house, then promise to share.

Whether the modders take the tools or keep using their own is the open question. So far, they haven't needed Microsoft's permission for any of it.

Sources: Xbox Wire, Video Games Chronicle, Shacknews.