Monsters must protect San Francisco or even the world from these evil aliens. Place your monsters around the map to defeat the incoming waves of aliens.
Protect the Kingdom of Magicka. Build special walls to direct the arcane enemies of the kingdom as your elemental cores prevent them from reaching the sacred halls.
As a brave Knight, it is up to you to repel 50 waves of orcs, ogres and other terrors from the fort. Hold them off at the barricades or fight them toe to toe inside the castle.
The Reich is invading Europe! As a commanding officer, it is your job to stop them from reaching their goals. They have tanks and planes, you must stop them with defensive turrets that you have to command and lay in strategic places or all hope is gone.
The Egyptian empire is in turmoil! There are two military factions striving to gain control! Defeat the opposing Egyptian force and obliterate their palace.