There are many Zombie Apocalypse games in the market, and I've played about three of those. This game, however, is top notch as it combines my favorite genres: puzzles and strategy. The game is well-organized and developed, and the interface is smooth and intuitive. I really enjoy using puzzles to fight zombies. I don't care a whole about part of a team if every member is not contributing. I like the artwork, as it doesn't seem cluttered and overwhelming. Really good game, overall.

Pay to progress otherwise you'll be doing nothing but grinding at headquarters level 10. Not fun and it gets boring and repetitive. Even the mini games require you to pay for items if you want to complete them. $3 a box by the way. Whenever you are attacked by stronger players, a level 25 player attacking a level 12, it will take 20+ hours for your troops to heal. Unless you pay 2000+ diamonds of course. Now I can't even do any of the world map stuff because the attack injured all my troops.

The game was fun until there was a rogue player that went against the rules. I've spent a lot of money on the game and lost it all after I was attacked. It's pointless to put any money or time into this game when you can lose it all from one player breaking the rules of NAP. I've been playing for 4 years then one attack set me back to to year 1 again, they took more than half of my might causing my player to be unable to participate in events. Which is the point of the game.