Defend your land from invading enemy troops. Build defensive towers along the road strategically choosing which type of tower to build, upgrade them in time and always be one step ahead of the enemies.
Build up your elevators and man the hallways as you protect your only corridor from the creeps. Switch elevators as you need more power and use your man to defend from extra large groups.
Defend your kingdom alliance consisting of humans, elves and dwarfs against the orcs, nagas, lizards, dragon trolls, undeads, behemoths, their vehicles and equipments.
Protect skyscraper tower with 20 weapons slot from hundreds of enemy waves! There are four game modes in this game: campaign, survival, time trial and killing mode.