Steam will stop supporting macOS 11 Big Sur on October 15, 2025, according to Valve, requiring Mac users to upgrade to macOS ...

From 15 October 2025, Steam will officially stop supporting macOS 11 Big Sur. This isn't just a case of Steam saying there ...

The change kicks in on October 15th, 2025. “This change is required as core features in Steam rely on an embedded version of Google Chrome, which no longer functions on older versions of macOS,” Valve ...

Starting October 15, 2025, Steam will no longer run on macOS 11 Big Sur. Users must upgrade to macOS 12 or later to continue ...

Valve's Steam client will end support for macOS 11 Big Sur on October 15, 2025. This decision, while a blow to some gamers, ...

Steam will drop support for macOS 11 from October 15, pushing users to upgrade to newer macOS versions for continued access ...

In a few weeks, the Steam Client will stop running on macOS 11 due to a Chromium compatibility limitation. Here are the details.

Valve has announced the upcoming end of support of Stem on older macOS versions, namely High Sierra (10.13) and Mojave (10.14). Those two are the final macOS releases with 32-bit application support.

Steam has kept support for macOS Mojave and macOS High Sierra alive so far to keep 32-bit games running on older Macs, but that support is ending on February 15.

Gamers with older Macs who want to keep using Steam will need to upgrade to macOS Monterey or later if they can, as Valve is cutting support for macOS Big Sur in October.

If you're a Mac user that's still running macOS 11 Big Sur, be aware: Valve has announced that the Steam Client will stop ...

The Steam store will stop considering games that offer only 32-bit macOS binaries to be Mac compatible at the end of 2023. 98%+ of Steam customers on Mac are already running macOS 10.15 or newer.