4: Countryside

Enemies: Orc Slaves, Boars, Goblins, Orc Warrior, Goblin Medic, Vultures, Orc Shaman, Skeleton Warrior, Devil Observer

Waves: 8

You have friendly elite warrior units guarding the entrance to your base. Don’t be fooled by the map’s layout. There’s only one path the enemies will follow. You’ll also encounter a new enemy called the Devil Observer. This hard-to-kill enemy can summon groups of Skeleton Warriors. Make sure to place at least one or two cannons along its path.

Enemies: Orc Slaves, Boars, Goblins, Orc Warrior, Goblin Medic, Vultures, Orc Shaman, Skeleton Warrior, Devil Observer

Waves: 9

This is a rather easy map. Just put one cannon in the first corner and place some forts and labs to prevent the enemies from getting past you.

Enemies: Orc Slaves, Boars, Goblins, Orc Warrior, Goblin Medic, Vultures, Orc Shaman, Skeleton Warrior, Devil Observer, Carrier

Waves: 10

The new enemy type you’ll encounter is an airborne unit called the carrier. It has two Orc Warriors inside. You’ll get some resources after taking out a carrier but the two Orc Warriors that will come out of the wreckage will be unharmed. This is quite annoying later on when you need to deal with several ground units and carriers at the same time.