Team Fortress 2: The Mac Update

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The Mac Update was the first major update for Team Fortress 2 that included support for a platform other than Windows.

its main feature was providing the ability to play the game on macOS machines. The update also included a Training mode and its associated map Target, added help sections to the Loadout, Backpack and Crafting screens, and also completely overhauled the main menu. The patch also added the ability to play King of the Hill maps and Dustbowl in Offline Practice Mode against bots, and made a number of other minor changes. After the update went live, the Mac Update trailer was released as was a non-canon Apple-themed comic strip featuring the Soldier, Scout, Heavy, and Saxton Hale.

Source: IGDB