1. How do you even know that Infinite is dumbed down from previous titles? Speculate much?
I meant the bioshock series is a dumbed down version of the first person roleplaying immersive sim genre.
2. It's not that it's popular as much as it's in the same world.
So are plenty of games, if I understand you correctly.
3. A good game sells regardless of name - some exceptions.
That is trash talk. if justin beiber were to have a game made about him it would sell millions. Whilst others will struggle.
Oh, I'll overlook this point then

I don't think I understood myself correctly at this point....Try to explain better, the reason it's called Bioshock [-] is because it takes place in the same world, like with plasmids and failing Utopias, I'd really need to see more to help back this up but I don't believe it's a Bioshock title just for the Lulz
Minecraft is an example, an Indie game with no previous titles or games latched onto it, yet it has over 20m registered users and a quarter of them have bought the game. That's just one game that's done well as a stand alone title.
Is there really a Justin Bieber game

.......

Nope, even Duke nukem has been dumbed down. Final fantasy, Castlevania, Turok, Elder scrolls and so on.
The list is huge.
Final Fantasy now is more appealling to me now than it ever was, I don't feel it's been dumbed down as much as involves more strategy - memory is hazy though since the last one I played beofre XIII and XIII-2 was VII.
Turok seemed a lot harder for the Xbox than it was for the PS2 and felt a lot more [Insert emotion] because of the surroundings and lurking predators (though I wish someone would play online)