While I think Isolation has a serviceable story, no nonsense- tonally in line with Alien, believable method for the Derelict to be revisited etc
It inhabits the world of Alien and feels very genuine doing so, but unfortunately the character writing while exceptional for background characters in particular, the main characters aren't all that well defined partially due to the runtime of the game spending most of its' time away from others.
That's where The Cold Forge really surpasses Alien Isolation, in it's writing of character and motivation.
Every character in The Cold Forge is more nuanced and layered than Amanda Ripley.
It's also essentially why when people say they'd like a sequel to Alien Isolation;
I question why they'd want Ripley back because she's followed through on what she set out to do.
Yet another thing The Cold Forge made me realise too, is that with the Derelict destroyed and the eggs gone.
The only remnant of the original Alien strain exists aboard the Torrens, unless the Plagiarus Praepotens obtained somehow brings it back.