One of our favorite free to play simulation games, Zombie Farm 2, has recently been updated with a couple interesting mini-games. To make visiting your neighbors farms a bit more compelling, you can now play tag with your neighbors zombies once there. In playing both of you get rewards. Other new game types are coming.
In addition, mini bosses have been added, evil creatures like Dr. Groundhog. Defeat these bosses to earn special rewards in the game. More bosses are coming soon. These are great ways to add a little real game play to this simulation type game.