Ohh... Point 'n' Click always is fun to play, especially this one. All about Zombies, it's really fun tho. In my view this is the best one for now.
What I noticed is, whenever I tried to save, leaving for like a good 5 hours, I realized that I am not able to get back to the previous game that I ended up. So I assume it somehow is not working properly? Maybe, maybe it has been fixed. But not complaining about it tho. Keep making these types of games up.