
I’ll try to shed light on the StarCraft II online mode. And even if you go online afterwards, Starcraft 2 won’t synchronize your progress and achievements to the server, which makes playing offline less enticing to use for the perfectionists. Playing in offline mode does quite the opposite, no saving of game progress on server and no saving of achievements. Krinskal, a Blizzard Blue poster, said that being online while playing single player campaign will save your progress and achievements on the server so that anywhere you go you will be able to continue your mission even if you don’t have your pc or laptop with you. The single player campaign of Starcraft 2 can be played online as well as offline.

Single player campaign online and offline mode
