I still haven't beat this game. Mostly due to the fact that I can't play it in long intervals. The game is excellent so I'm not knocking it but towards the very end of the game its repetitiveness really does wear in. I'm on Chapter 10 out of 12, and idk I've been on Chapter 10 for more than a week! Not saying I pick up the game every day though.
It's also mostly due to me and horror games not mixing. Like it depends on the game really. Silent Hill games sit well with me; Condemned did but Condemned 2 didn't; etc. This game really shows all that it has at about Chapter 7 or 8, or whatever one it is where you
go onto the ship that crashes into yours and find the infected crew on it. :EDIT: whoops apparently this was chapter 9 and i'm on 10.

I haven't encountered a single new enemy or new event since then that I can remember. All the new enemy ideas slowly dwindled away. Now I'm actually seeing the same enemies that I saw in the first couple chapters except they have like pitch black skin and move faster/hit harder, so that's a bad sign.
This game is still one of the best experiences I've had, and as a horror game, it scares the hell out of me so who knows! But a horror game does mix with me when it dwindles down and starts to rewash enemies and all that. They could've added something more. But who knows, maybe I'll run into something this Chapter...?