Download for other OS from Steam HOWTO

• Go to this address in your browser to open Steam's console:

  • steam://open/console

  • Or you can fully exit Steam and run it with the -console argument
• You will now have a "CONSOLE" tab in Steam, and you can type in commands at the bottom
• Execute these 2 commands

  • @sSteamCmdForcePlatformType ostype

    • (where ostype is one of windows, macos, or linux)

  • @sSteamCmdForcePlatformBitness bitness

    • (where bitness is either 32 or 64)
• Download your game as normal and wait for it to finish
• Cut and paste the game folder out of your Steam library so you don't have to worry about Steam trying to manage it in the future
• Uninstall the game in Steam so it doesn't try to redownload
• To put your Steam back to your regular OS setting, fully restart Steam or run the commands again with your normal OS