Eliminate the invading force intent on taking Space Station Xorbe in Earth's orbit. If the station is captured then it'll become a staging ground for the invasion of Earth itself. You got a huge arsenal of weapons and defensive mechanisms to stop them.
Buy troops and tanks to place around the smuggling route. You have to stop the notorious drug trafficker that goes by the alias of 'Asian White Pearl'.
Dino hunters have teleported a cache of dinosaur eggs in their time-traveling RV. Now the enemies are in hot pursuit. Set up your defenses to protect the Dino Hunters' RV and keep the egg snatchers at bay.
The aliens are back to snack on farmer brains. This time they are filled with ACID BLOOD! Look out, the acid will harm your defenses. Strategically place the crop circles to make the maze then set up your defenses and blast the aliens back to outer space.
To Protect the Earth from alien invasion, you're given a ship class AT-021. But unfortunately the Earth doesn't have enough resources to supply new arms to the ship. Improve the ship by collecting weapons through battles and buy turrets to defend.
The horde has attacked your country. Bloody and almost beaten you have regrouped in the only region that remains free. It is time to fight back and drive the horde from your lands in bloody tower defense battles.