In this game you can play very very long. This is first/3rd person rpg. But it is so big, so free . You can go where you want at any time. It have chosing you hero(Like DX), dialogues(Not so cool like DX, but it much more), magic(like Implants in DX), skills(much more then DX, but DX still better), inventory(more bigger then DX - I always say, that in DX inventory too small then it should be), many items, (there is some the same what in DX), many NPC(in this DX more conceptual), and much more... If you have at least 3-4 weeks(it's time in what I played - in waiting DX2) - you must play in this(In condition that you like time in which game maded)
I may talk more... if it needs