ChromeBraveEdgeBeta

CrosTem for your browser

A free, open-source extension that answers “Does it run on my Mac?” right on the Steam website — in Chrome, Brave, Edge or any Chromium browser.

Try it — pick a game:

Runs on Mac?
Playable on Mac via CrossOver
  • CrossOver — CodeWeaversRuns Great
    Last Tested: 26
  • AppleGamingWikiPerfect
  • AnticheatSupported
Data: CodeWeavers · AppleGamingWiki · AreWeAntiCheatYet. Not affiliated.
The widget as it appears on a Steam game page.Sample data — the real widget looks this up live on Steam.

Six surfaces, one answer

Compatibility shows up wherever you browse Steam. Every surface can be switched off.

Verdict on every game page

A “Runs on Mac?” panel in the store's right column: verdict banner, per-source rows, the three latest CrossOver versions with stars, and direct links to each source.

Stars across the store

Game capsules on the front page, sales and category pages get a star overlay as they scroll into view — resolved ahead of time, so browsing stays smooth.

Badges in search, wishlist and Community

Search results, your wishlist and the Steam Community games list show compact rating badges next to each title — hover for a mini-card with the verdict and per-source details.

Native games, flagged

Games with a native Mac build get five stars and an architecture tag — M Series (Apple Silicon) or Intel (Rosetta 2 on M) — with no external lookups.

Toolbar popup

The active tab's verdict at a glance, a manual game lookup, quick surface toggles and cache stats.

Settings that apply live

Toggle surfaces and data sources, set your CrossOver version, tune the cache — changes hit open Steam tabs immediately, no reload.

See it in place

The verdict widget on a game page
The verdict widget on a game page
A Denied anti-cheat status forces a red verdict
A Denied anti-cheat status forces a red verdict
Star overlays on the front page
Star overlays on the front page
Rating badges in search results
Rating badges in search results
The options page
The options page
macOS 13+Apple Silicon

Also: the Steam client itself

CrosTem for Mac puts the same verdicts inside the macOS Steam app — plus a whole-library scan and a menubar dashboard. Run either, or both.