As it turns out, Ghost in the Shell’s First Assault will also be its last assault. Nexon announced today that they’d be shutting down the servers in the North and South America, Europe, and the Oceania regions.
The game’s twilight, though, will last the next few months as actual shutdowns won’t come until December 6th. In the mean time, you have plenty of time to say your goodbyes, just don’t expect to spend any more money on the game (why would you?) because the shops have now been closed.
You can read the Steam announcement here.