Kingdom of Zombies seems like it's not very well known. Granted i hesitated a lot before i started reading it, but it was quite enjoyable. Although the Zombie virus is kind of a cliche, it never fails. On top of that, certain characters seem to have special abilities which spices up the story even more.
When it comes to how the story is written, im a little disappointed. It seems they keep skipping ahead really quick in the story. Instead of one small scene happening in a panel, it looks like several hours or days have passed.
If you enjoyed anything from The Walking Dead to
Highschool of Dead, you should definitely try out this manhwa. It will suit your taste.