The most anticipated race.

I. For example, the other races didn't even know or fully grasp that there are other worlds (i.e., other planets) in the universe; they thought, for instance, that only their world of Might and Magic existed, and that was it.

Everyone knows there are other worlds—read the Might and Magic anthology. Initially, the events of Might and Magic took place not on own Xeen, but Sandro was the king of a Necropolis planet; later (Might and Magic 6), the Kreegan demons arrived, who intended to destroy the ancient planet

and then bam, strangers that no one understands, and at first it's unclear what they want or whose side they are on.

That was in Might and Magic 7—complete adventurers arrived, who split into 2 Factions: Necromancer/mages; subsequently, if you choose good, the Kreegan will be destroyed; if evil, then there will be a celestial forge in the Abyss since the times of wonders