Nope, they can't take artifacts. They are kind of limited right now. They roam the galaxies and you can attack them and they can either attack or run. We will be adding more things to them such as attacking ships and planets on their own, trading, upgrading their ship and planets, placing sector defenses and other things. We are going to try and make them try and act like a player in the game. Maybe not the smartest player but a player anyway.