If I had one complaint about the Dungeon Siege games it's that they were a bit too automated for their own good; you didn't feel much interaction since the game took care of combat through auto-attacks. That's something that's been rectified with Space Siege, as much of it feels like an action game that requires you to input attack commands manually. Left clicking the mouse will cause you to move, while right clicking the mouse will attack a target. The tricky part is getting used to the camera, which is controlled by the W, A, S, and D keys. A and D rotate the camera, while W and S zoom in or out. This is the kind of game where you always want to move the camera around to better see the action.

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With that said, there's a lot that also seems a bit underwhelming about Space Siege. The story and the characterizations lack the mystery or the delivery of something like BioShock, a game that captured the sensation of being in a spooky environment effectively. Space Siege lacks that kind of atmosphere, and the setting of a spaceship in deep space seems wasted. Where there should be darkness and flickering lights and dark shapes lurking in every corner, there's basically another moderately lit room or corridor.​