This is great news, I was all for it despite everyone being down on it. Cannot wait to get it installed on my phone.
This is from a huge Alien movie fan, so YMMV.
I actually feel I'm in the movie.
I never played FNAF so I don't know if it's a clone, reminds me Republique and Deadnaut (on PC, there should be a free demo too).
You control Amanda Ripley hidden in a air ventilation shaft and you must guide some crew members in different maps.
You do so checking frantically the (few) avaible cameras, using (limited) power to open/close doors, activate motion trackers etc...and finger tracing their paths. You can also issue commands like hide/run/etc...
There is a quite good AI too, both for your crewmembers (sometimes they run away from Alien and stay hidden on their own) and the Alien...which you can lure away with sounds (doors...but after a while it understands the trick and use the shafts...it is incredibly fast too).
On top of that, using sounds, you must keep yourself alive closing the nearby doors when the Xenomorph attacks you.
Crew members constantly talk, and while they are no Hicks or Dallas they are quite good.
I don't know if it's incredibly short...I know there are 7 levels with a 8 minutes time constraint each so if you are awesome and lucky the game will last you less than one hour.
I know I'm on level 3 after 3 hours or so of playtime and I'm having a total blast (tonight I'll watch Alien again for the millionth time). Maybe I just suck at the game but they were 5 dollars well spent.
I spent way more for much less enjoyment and length for the other crappy Alien movies at the cinemas.
Just my 2 cents, hope you will like it as I do....let me know!