Gaming
Steam · legacy macOS compatibility
Valve's PC game store, library and desktop client.
Only sourced records are listed. A download link is shown only when an official or open-source release URL can be tied to that exact version. An unlisted OS does not automatically mean the app cannot run.
Choose macOS manually when detection is unavailable.
| macOS | Version or support record | Download |
|---|---|---|
| Record for this systemmacOS Big Sur 11 | Support ended 2025-10-15 ● End of support | |
| Record for this systemmacOS Catalina 10.15 | Support ended 2025-02-15 ● End of support |
Sources & verification
● Last checked 2026-09-16
Steam macOS 11 support notice ↗
macOS Big Sur 11
Steam macOS 10.15 support notice ↗
macOS Catalina 10.15
Compatibility notes
macOS Big Sur 11
Steam stopped supporting macOS 11 Big Sur on October 15, 2025; the client no longer runs on that OS after the cutoff.
macOS Catalina 10.15
Steam stopped supporting macOS 10.15 Catalina on February 15, 2025; the client no longer runs on that OS after the cutoff.
Vendor download routes
These routes do not identify the compatible build above. Check the version, minimum macOS and Intel / Apple Silicon architecture before downloading.