Only use a StarCraft 2 offline installer patched if you have a valid, paid license for the game (e.g., the Campaign Collection or the original Wings of Liberty + expansions). Do not distribute the patched files.

Reports indicate that StarCraft II does not have a formal "offline installer" in the traditional sense; the game is primarily distributed and updated through the Battle.net Desktop App

A frequent frustration for players seeking offline stability is the "update required" loop. This often occurs when the client detects a newer version but cannot complete the download, or when file permissions are corrupted.

Right-click SC2Switcher_x64.exe and select . When the login screen appears, click Play Offline . Essential Requirements for Offline Play

: Only maps that have been previously downloaded and played while online will be available. Arcade Maps