NOT Dungeon Sige.
You can take it as either good or bad. Instead of a party you control one man and after a few minutes playing, you encounter a robot aide. Aside from that, your party make up is you and your robot.
There's no level-up system, but rather some off-shoot D&D point system. By tweaking your body with machine grafts you become stronger, yet certain abilities will be closed off from you as you edge toward cybernetics. I don't think theres no TRUE way to play the game, but at the same time I miss the level-up system.
Space Siege is not an action RPG nor is it an RPG in any sense of the term. I think the developers tried to cross both lines and by doing so alienated the old Dungeon Siege fanbas and will have weirded out any newcommers....
I would not reccomend this game if you are looking for an RPG. I also would not reccomend this game if your looking for action or adventure. Get this game if you have totally nothing else to play.