Plants Vs. Zombies is a popular tower defense video game developed by PopCap Games. In the game, players use various types of plants to defend their home from waves of attacking zombies. Each plant has unique abilities, such as shooting peas or blocking zombies, and players must strategically place them in their garden to stop the undead. The game features multiple levels and environments, including a backyard and a roof. As players progress, they unlock new plants and face different types of zombies, each with their own strengths and weaknesses. The combination of strategy and humor has made Plants Vs. Zombies a favorite among gamers of all ages.