Sounds fun, but I do have questions?

So we're talking humanoids or have these mutants mutated to such a degree that they have altered their bodies aswell?

Is it still based on our world or can we forgo the old names as the event has altered things to such a degree that towns and cities are named differently?

A little more info on the creatures please, I mean can I bludgeon them to death or will they overpower a normal human? You also spoke of unnatural abilities, what are we talking about? Spitting venom? Or hypnotism? I'd like to know a little more before I think up a character.

Also goal? Pure survival or are we trying to eradicate them?