Plants vs Zombies is a real-time strategy / tower defense game, developed by Popcap, in which you will have to protect your garden against invading undead.
Several modes of play are available, primarily an adventure mode that will take you by the hand with its built-in tutorial and progressive difficulty.
Plants vs zombies is thus a free online game, with a devilishly effective and particularly addictive action, which is also available in full version to download.
See also:
Plants vs Monsters
