I'm of the opinion that a critically acclaimed game that's "just like Alien" cannot be made. The two experiences don't really align very well.
Most games are easy. Yes, even the games you think are hard. If you drop someone into the situation in the Alien film, 99 times out of 100 they would die--yet people often say they want an Alien game to be just like the movie. If they did that, people would quit in frustration "because it's not fair". Well, yeah, neither was the situation in the film. You can't really have both. In an Alien game that's based on the film, you should die both often and unfairly. The main character of Alien only lived because she was supposed to, through plot device, not because that's what would really have happened.
It's an extremely tough spot to be in for developers.
