It was first released on May 5, 2009...PLANT VS ZOMBIE... was nominated for multiple Interactive Achievement Award, the objective of this game is to protect your house from the zombie attack, if you fail, your brain will be eaten by them, well it's not "YOUR" brain actually. I don't want to tell you about the detail, if you want to know more you can visit the Wikipedia page (http://en.wikipedia.org/wiki/Plants_vs._Zombies) for this game or you can directly go to the Popcap Games: Plant vs Zombie homepage (http://www.popcap.com/extras/pvz/).
I played like more than 100 times maybe more than that. This heart-pounding game really make you hold to your chair even if you want to pee. Even it is a simple game it is the most interesting game ever I've played.
The predecessor, i would say, of Plant vs Zombie game, Angry Bird. Even it is from different manufacturer its still a simple, interesting game that make you "what i told earlier". Even though I just played it twice so far, I already rate it 5 star. It was released for Apple's iOS in December 2009.You can check out the detail on the Wikipedia (http://en.wikipedia.org/wiki/Angry_Birds) or the homepage (http://www.rovio.com/index.php?page=angry-birds)...
Maybe both of this game should be combined and be named Zombie Plant VS Angry Birds
Heres some screen shot of both games: