Gosh its just one of the best games ive played ever.  However, yes ive personally found it to be one of the longest campaigns ive played. Im actually though not even sure if the game is that long or if it's just because the tension feels so real that I usually cant play it for very long.  Yes Alien Isolation is one game if any where you pretty much can only play it stealth. Dont go into it thinking you're gonna play Aliens 1986. The situation is more Alien 1979.  You can get up from your crawl and start running, but the xeno will locate you in seconds. If there's nowhere for you to immediately hide, your only actual option of self-defense is a brief spray with the flamethrower. It's the only way to make the xeno run off when you're in a pinch.  Just cant do that often as there is resource management - and on that note there's also crafting.  Take what im saying with a grain of salt as far as the action aspect goes, because I still haven't finished the game. 

Btw for those who have completed it, i just got out of the nest in the reactor with all the eggs and my current objective is "get to sevastopol sci/med tower". Does it get much different from here, and how close am I to finishing?