Tower defense is a subgenre of real-time strategy video games. The goal of tower defense games is to try to stop enemies from crossing a map by building traps to slow them down and towers which shoot at them as they pass. Enemies and towers usually have varied abilities, costs, and upgrade prices. When an enemy is defeated, the player earns money or points, which are used to buy or upgrade towers, or upgrade the number of money or points that are earned, or even upgrade the rate at which they upgrade.
The choice and positioning of the personal towers is the essential strategy of the game. Many games, such as Flash Element Tower Defense, feature enemies that run through a "maze", which allows the player to strategically place towers for optimal effectiveness. However, some versions of the genre force the user to create the maze out of their own towers, such as Desktop Tower Defense. Some versions are a hybrid of these two types, with preset paths that can be modified to some extent by tower placement, or towers that can be modified by path placement.
Read more about Tower Defense: History, Gameplay, USPTO Trademark
Famous quotes containing the words tower and/or defense:
“All over France, in every city there stand cathedrals like this one, triumphant monuments of the past. They tower over the homes of our people like mighty guardians, keeping alive the invincible faith of the Christian. Every arch, every column, every statue is a carved leaf out of our history, a book in stone, glorifying the spirit of France.”
—Sonya Levien (1895–1960)
“I would remind you that extremism in the defense of liberty is no vice! And let me remind you also that moderation in the pursuit of justice is no virtue!”
—Barry Goldwater (b. 1909)