Disconnect your PC from the internet (unplug the Ethernet cable or disable Wi-Fi).

Historically, community-made or "launchers" were created to: Bypass the initial Battle.net login screen.

Enable single-player Campaign achievements without internet. Allow LAN/local play for AI matches.

However, modern gaming often relies on "always-online" connectivity. For those with unreliable internet, traveling, or wanting to preserve the ability to play without Battle.net connectivity, finding a or understanding the game’s inherent offline capabilities is crucial.

In 2022, a popular YouTube video titled "SC2 Legacy of the Void Offline PATCH NO VIRUS 2022" distributed a file called SC2_HotS_Offline_Patch.exe . It was actually a renamed ransomware dropper. Victims lost their documents, not their ladder rank.

How to Play StarCraft 2: Legacy of the Void Offline (Patch Guide)