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macOS 27 and the End of Rosetta: What It Means for Gaming on Your Mac

macOS 27 is the last version with full Rosetta 2 support, and CrossOver itself runs through it today. Here is what changes for Mac gamers, and when.

macOS 27 and the End of Rosetta: What It Means for Gaming on Your Mac

macOS 27 Golden Gate arrived on 14 September, and it carries a change that matters more to Mac gamers than anything in the keynote. Apple has confirmed it is the last version of macOS to support Intel apps through Rosetta 2 in the general way we have relied on since 2020. From macOS 28 next year, most Intel-only Mac software stops working.

If you only ever play games that run natively on Apple Silicon, you can stop reading here. For everyone else, and that includes anyone who uses CrossOver, this is worth ten minutes.

What Apple actually said

At WWDC 2025 Apple set out the timeline, and it has held to it. macOS 26 Tahoe was the last release for Intel Macs. macOS 27 runs on Apple Silicon only, and it is the final release where Rosetta 2 translates any Intel app you throw at it.

The line that matters for games is this one: after macOS 27, Apple will "keep a subset of Rosetta functionality aimed at supporting older unmaintained gaming titles, that rely on Intel-based frameworks." In plain terms, Apple is not planning to break every old Intel game overnight. It is keeping a narrower version of Rosetta alive for games that developers have abandoned. What that subset covers in practice will not be clear until the macOS 28 betas arrive next summer, so treat any confident claim about a specific game as a guess for now.

Which games on this site are affected

We classify a game as Rosetta when it has an official Mac build that is Intel only. It installs and runs from Steam or the developer's launcher like any Mac app, but macOS translates it to Apple Silicon behind the scenes. That costs some performance, typically in the region of 10 to 15 percent, and it is why we rank Rosetta below true native and above CrossOver.

There are 164 games in our database in that category today, including well known titles such as Crusader Kings III, Euro Truck Simulator 2 and XCOM 2. On macOS 27 all of them still run through Rosetta as before. Nothing changes for them this year.

The risk arrives with macOS 28. Games in that group that are still actively updated have a year to ship an Apple Silicon build, and many will. Games that were ported once and left alone are the ones that fall back on Apple's gaming subset, and we do not yet know how complete that will be.

We will keep the Rosetta label accurate as developers ship native builds, and when macOS 28 betas land we will test the most searched Rosetta games and update their pages.

The bigger issue: CrossOver itself runs through Rosetta

CrossOver, the tool we recommend for more Windows games than any other method, is itself an Intel app today. Every Windows game you run in CrossOver 26 is translated twice: Wine turns Windows calls into macOS ones, and Rosetta turns the Intel code into Apple Silicon code.

CodeWeavers has been open about this. CrossOver 27, due in early 2027, will be a native Apple Silicon build that does not depend on Rosetta. A very early preview is already in testing, although it lacks Direct3D 12 support and many game launchers do not work in it yet. CodeWeavers has also said CrossOver 26 will keep working after CrossOver 27 ships, which buys time for anyone who stays on macOS 27.

Two details in the CrossOver 27 plan are worth knowing now.

First, it drops 32-bit bottles completely. In CodeWeavers' words, "32-bit bottles will no longer run, full stop." Most modern games are 64-bit and will not notice, but older titles that only ever shipped as 32-bit Windows programs will need to stay on CrossOver 26, or move to Parallels.

Second, CrossOver 27 will only run on macOS Sonoma or newer, and only on Apple Silicon. If you are still gaming on an Intel Mac, CrossOver 26 is your last version, and cloud streaming through Boosteroid is the route that will keep working longest.

What about Game Porting Toolkit 4?

Apple released Game Porting Toolkit 4 alongside macOS 27. GPTK is the developer toolkit that contains D3DMetal, the layer that translates DirectX 11 and 12 into Metal, and it is the same technology CrossOver uses under the hood for most modern games.

The early numbers are encouraging. Testing reported by several outlets showed GTA V climbing from around 106 frames per second to around 176 on an M4 Pro MacBook Pro, a gain of roughly 66 percent. One game is not a trend, and GPTK is a toolkit for developers rather than a product most players install, but improvements in D3DMetal flow through to CrossOver releases over the following months. CrossOver 26 ships with D3DMetal 3.0, so expect GPTK 4 improvements to reach you through a future CrossOver update rather than immediately.

What you should do now

If you are on an Apple Silicon Mac, upgrading to macOS 27 does not remove anything you rely on for gaming this year. Rosetta still works in full, and CodeWeavers has confirmed CrossOver runs on Golden Gate. Update CrossOver to the latest version before you upgrade, and read its release notes for any known issues.

If you rely on CrossOver, keep it updated and keep an eye on the CrossOver 27 preview if you are curious, but do not move your main bottles to it until Direct3D 12 support arrives.

If you own older 32-bit Windows games you care about, make a note of which ones they are. They are the games most likely to need a different route in 2027.

If a favourite game of yours shows the Rosetta label on this site, check its page now and then over the next twelve months. When a native build ships we update the verdict, and the My Mac page will show the change against your own hardware.

Rosetta has been one of the quiet successes of the Apple Silicon transition. Its retirement is not a cliff edge for gaming, but it does turn the next year into a deadline for developers, and a good moment to check how the games you care about are running.