Is this just another Zombie-game or are there other types of "monsters" as well?
There are quite a few scenarios. Each scenario is a three part mini-campaign in a sense but you can play any scenario in any order as a one time game.
There are zombies, mutants, aliens, and robots. The expansion gives us Kaiju and really changes the gameplay. It’s an interesting game and kind of unique in its own way.
It’s a pretty nice sized game in a small box. I really enjoy it.
But like already stated, watch some unboxing videos or even gameplay videos on YouTube.