Keeper of the Grove
Free online defense games are not all about towers and castles. In this little arcade game you are tasked with keeping jewels safe from all sorts of looters. Place your defenders on the lawns along the path to protect the treasure. Mind that you are free to sell the placed units during the attack, for instance to buy other one with different abilities. New waves of pillagers will appear with time, but you may also speed-up or slow down the game pace if you like. Challenge various types of villains, unlock new defence units and leverage their abilities through dozens of levels. Thanks to the amiable character art and easy controls such free arcade games for boys may also appeal to female audience.