On its own, it was a pretty decent game, with some fun combat, some open world exploration but not too much, and a fairly bland story.
I wouldn't call it a bad game per se. But they called it a gothic iv, and it has _NOTHING_ that really relates it to series (and no, borrowing the characters doesn't count, it just added to the feeling of nonsense).
You see, there are some things in the gothic series that you would expect, like branching paths (typically based around choosing one of the 3 choices, wheter they are camps, gods or whatever) . This also meant that, for example, if you wanted to go full warrior you would not be able to learn magic, or at most you could use holy magic (think paladin), and conversely, as a mage, you will never be able to master melee combat.
Now this game shits all over these conventions by allowing you to start out as a warrior and end up as a master wizard (which is what i did).
Oh, and also you don't even have to bother finding someone to train you, since you get to choose what to train at each level up. The only vestige of the "3 choices" is when you finish some "quest", after which you get offered 3 different kinds of armour, with the "mage" one being generally just better (which annoyed me until i finally switched).
After saying all this, remember that i never said that this game is actually bad. It just doesn't belong in the gothic franchise. If they called it something like Arcania: a Gothic spinoff or something along these lines, i wouldn't have complained at all. Now, coming back to the main topic: bioshock 2. No, i won't play it, because it's not really a sequel to the game. It has NOTHING of what made bioshock BIOSHOCK. Again, if they called it something like "Bioshock: Big Daddy edition" or "Bioshock: extreme drilling" or anything that doesn't seem to imply that it is a sequel, i would be ok with it.
Dammnit, i ranted too much. I hope i was able to bring my point across. Thank you for taking the time to read all this, if you bothered to, and if you didn't that's ok too :)