PopCap has just launched a special Game of the Year edition of its smash hit tower defense game Plants vs Zombies for PC and Mac. According to PopCap, the special edition is “packed with all the zombie-zapping fun of the original game” plus updated and expanded with 20 new achievements and the interactive Zombatar that lets you create your very own zombie then see it come to “life” in the game. You can grab the PvZ GotY Edition from PopCap for $19.95.