In addition, future versions of Steam will require macOS feature and security updates only present in macOS ('El Capitan') and above. The newest features in Steam rely on an embedded version of Google Chrome, which no longer functions on older versions of macOS. If you installed it, what games are you playing and how are running them?. So the OS X El Capitan Public Beta has been released! My idea in this post is that (valiant) guys who install the OS can share their thoughts. am OS X El Capitan and Steam compatibility Hello, guys. All Discussions > Steam Forums > Steam for Mac > Topic Details.Check out how Civilization: Beyond Earth, Left4Dead 2 and CoD MW2 all plaid on Max Resolution and highest. OS X El Capitan improves gaming on the Mac.Action, Shooter, Third-Person Shooter, Third Person%. MacOS on Steam Browse the newest, top selling and discounted macOS supported games New and Trending Top Sellers What's Being Played Upcoming Results exclude some products based on your preferences.