Few words about story. Mostly related about "Aliens".
Initially I misrecognized aliens as slightly more scary animal races. My bad, ufopedia mentioned the distinction, but I noticed that only later.
Oh, just noticed that there is no article for "Contact: Animals". No wonder I missed the difference.
Interrogations of invaders grants information about them and their society, but nothing about their relationship with animals and aliens. I would expect something like: "Yes, Reapers and Dire rats are our pets, but we also have no idea who are Aliens."
After acquiring strong artifact, scientists learned that artifacts comes from alien organs. Why invaders haven't told about that earlier? Why invaders never speak about aliens?
Invaders' agenda: "... The invaders do not try to conquer new worlds, the reason for which the subjects we questioned describe as 'The arrival of the Master'. ..." Well, that is interesting. Can you tell something more about that "Master"? Apparently no. Subject already expired...
And now the most "funny" part.
The main threat: "... Then, in the deepest nest, what the invaders call the "Advent" will happen. ..."
So does that means that event the last goblin peasant knew that Aliens will eventually destroy Earth and nobody told us earlier??? Why???
I think game would be much engaging if the main threat would be known earlier and then player would have to
consciously gather pieces of solution.