Thats related to this:This is big.
Pretty much every Windows game now runs on Macs, including Elden Ring, Diablo IV, Cyberpunk and GTA. Looks like Max/Ultra is required for full performance however.
Using its XCode 15 Command Line Tools to play DirectX12 games like Diablo IV on Silicon based Macs (as opposed to Intel based ones) running the latest releases of the Sonoma and Ventura operating systems. A step-by-step guide by Senior C# Developer and former Microsoft Development Engineer Denis Gladkikh, aka Outcoldman, details how to set up Rosetta 2 and the Game Porting Toolkit needed to run Intel-based games that are primarily built for Windows systems on Apple Silicon instead. Although the amount of command line manipulation looks daunting, the guide is fairly straightforward and easy to follow, showing the game running on a very high end 16" M2 Max MacBook Pro 2023.
Its a method to allow easier game ports that arrived with the first Xcode 15 beta at WWDC 2023.