Alien: Isolation is on my next game to be played list.
Is it worth playing ?
Definitely! It's more fun if you are a fan of the Alien movies.
Story is told from the perspective of Amanda Ripley, daughter of Ellen Ripley from the movies. You have arrived at a soon-to-be decommissioned space station named Sevastopol orbiting a gas giant. When you arrive, you find that the station is mostly in shambles as the decommission is in progress and lack of supplies causes the human survivors to turn on each other. For at least the first 20 mins of the game, your main enemies will be humans who won't trust you. Since ammo is limited, you have to avoid confrontation whenever possible by using the shadows, hiding in lockers or under furniture, or moving through vents. Then you encounter the Alien, that's when the real game starts. You cannot kill the Alien and you only have to avoid it. The Alien can listen to sounds and will make a beeline to you if you make too much noise, but there are generally ample places to hide so avoiding the alien its not really a huge deal. The game becomes less scary once you get the flamethrower since one puff from it will cause the alien to retreat.
What I liked best is the art style, they really captured the look and feel of the Alien movie in-game. Also, great characters, dialogues and story which follows you trying to uncover how the Alien got onto the station. Also, great plot twists.