I'm tired always being online when I play Stargate Network.

Actually I'm an offline player unless I play multiplayer games.

The problem with Stargate Network, the launcher always check update before playing the game.
If the launcher fails, the game won't start.

So I took a look at the game directory and I found an executable file. I tried it and now I can play Stargate Network offline.
The game file is at: C:\Users\UserName\AppData\Local\Stargate Network\game\SGN.exe.

Of course I can still use the launcher to check if an update is available but most of time, I play Stargate Network offline.