You COULD play on your own, in theory. You would need to start a server as the "main screen", then start a new instance of the game as a client and pick all the bridge stations. To get the real fun out of Artemis ideally you want to have 5 friends present at the same location. You can play over the internet too, but it's much better to have everyone present.
EDIT: I run single-player style games to test out mission scripts and ways I can break the game, but other than that it's better to have people.
[Last edited Mar 29, 2012 20:45:02]