The invasion

Of course, the Symbiote invasion of New York would be connected to Spider-Man. In the comics, Parker makes Eddie Brock doubt his decisions and, in turn, Brock instructs the Symbiote to leave him. In despair, the Symbiote attracts others of his species, and they plan to build a portal that would basically mean the beginning of an invasion of Earth. The plan is foiled when Brock once again bonds with the Symbiote and defeats the invaders.

Such a story could be adapted without involving Parker, even if it means leaving out quite a few details from the comics.

As far as action, sci-fi, and horror are concerned, this premise sounds amazing, since it would also mean detailing the Symbiote’s back story. Furthermore, his rejection by the host could also be explored, giving the alien a more humane personality (if we may say so).

Of course, these are just assumptions. What do you think?

And now, you can’t mention Venom without his most well-known offspring.