It's an experience.
The best Alien game ever released , and the best horror game to be released.
I like horror gaming but this, THIS gets around the problem that plagues other horror games. The problem of repetition.
Take Resident Evil 7 as recent example , praised to no end for its atmosphere and sense of dread and deservedly so. However, after I finished it and started a second run through that dread and fear of not knowing what was coming had gone. Alien Isolation on the other hand doesn't have this. Every play through with the obvious exception of the opening two levels are different. You have no idea where the alien is and that A.I. is pure genius.
This game will hold up for years and years.