A strategic and challenging tower defense survival game that allows players to feel the hardships and hopes of survival in the doomsday of the future world. Players need to play the role of commanders in the future world to defend human beings from the threat of alien invasion.
The background of the game is set in 2112, the earth has been attacked by aliens, human society has been destroyed, and only a small number of survivors survive in an underground base called "Earth Hole". Players need to build defensive towers and traps to defend the base and fend off alien attacks.
There are many types of enemies in the game, each with its own special abilities and weaknesses. Players need to choose different types of defense towers and traps to deal with different enemies. There are several levels in the game, and each level has its unique combination of maps and enemies. Players need to develop different defense strategies to defeat enemies and win.
There are many different types of defense towers and traps to choose from in the game, each with different characteristics and upgrade paths. Players can upgrade their defensive towers and traps by collecting resources, and unlock new tower and trap types.
The game also includes some special abilities and skills, such as summoning air strikes, using EMP bombs, building structures that block the way, and more. Players can use these special abilities in the game to help them deal with more difficult enemies.