While there is no official " StarCraft 2 offline installer" as a standalone, patched file from Blizzard, you can achieve a fully functional offline setup by utilizing specific workarounds and legacy tools. Modern StarCraft II relies on the Battle.net launcher for authentication, but following the methods below allows you to play the campaign and custom AI matches without an active internet connection. 1. The "Official" Offline Mode (Re-authentication Method)

Who this might be for

: Fully playable, though you will not earn achievements or portrait progress. Custom Games vs. AI

legitimate offline play

If you want help with or backing up a legit copy for offline use, let me know – I can guide you there instead.

official, clean method

Want to avoid shady torrents and potential malware? Here is the to create your own patched offline installer from a working installation.

for LAN parties, offline play in remote areas, or simply to bypass the Battle.net launcher, a patched offline installer is the way to go. Since Blizzard transitioned the game to a "Free to Play" live-service model, official offline installers have become nearly impossible to find. What is a "Patched" Offline Installer?