'Yes, we are vibe-coding things': Epic confirms it's using AI tools to code Unreal Engine 6, Fortnite, and more

You won't catch me venturing deep into the coding mines, but even so, thinking about the comment-less form AI-assisted code can often take still gives me a stress headache. So you can imagine my reaction when Tim Sweeney recently confirmed via X, "Yes, we are now using AI tools to develop code for Unreal Engine."

This is unsurprising given that, in an Unreal Engine 6 blog post back in June, Epic’s executive VP of development Marcus Wassmer wrote that the company had "opened up pretty broad usage for code generation and AI analysis across our backend, engine, and game development engineering teams." More recently, Wassmer offered a follow-up statement to This Week in Videogames, saying, "We are more concerned about the risks of moving too slowly than we are about AI skepticism."

"Yes, we are vibe-coding things," Wassmer elaborates in his most recent statement, "That means our engineers are no longer writing the bulk of the code, but they are …