In the community's early days, third-party "offline installers" or launchers like were popular for playing patched versions of the game without any Blizzard interference.
Launch the game directly via SC2Switcher_x64.exe located in the \StarCraft II\Support64\ folder. When the login screen appears, click . 2. Bypassing the Launcher via SC2Switcher starcraft 2 offline installer patched
Is it possible to start/play Starcraft 2 without going through the VERY ANNOYING Battle.net app? : r/starcraft In the community's early days