Origin has just added Plants VS. Zombies (Game of the Year Edition) to their roster of free (or what they like to call “On the House”) games. Plants VS. Zombies is a simplistic, yet fun tower defense game where you use plants to defend your home from zombies. That’s really it. There are mini-games and a survival mode, but that’s the game objective. Other than that, it’s just a fun time waster. Click Here to get it now!