Desktop Tower Defense (DTD) is a Flash-based browser game. The game had been played over 15.7 million times as of July 2007 and was one of Webware 100’s top ten entertainment web applications of 2007.
The game is played on a map resembling an office desktop. The player must stop a set number of enemies, known in the genre as “creeps,” from reaching a set point on the playing field. This is accomplished by building and upgrading towers that shoot at, damage and kill the enemy creeps before they are able to reach their objective. Unlike many other tower defense games, the path of the creeps themselves is not set; instead, the towers built determine the path of the creeps, who take the shortest path they can find to the exit. The game prevents making an exit inaccessible.
The creeps come in waves at set intervals. Each wave of creeps has different characteristics, such as immunity to certain towers, extra resistance to certain towers, and the abilities to spawn new creeps, move faster than normal, or fly over the towers instead of following the maze. For each wave, the game rotates among the types of creeps. Several times during gameplay, boss waves will appear. These waves consists of just one or two large creeps each, that are extremely difficult to defeat.
One tactic is “juggling”
The player has a set number of lives that diminishes every time a creep gets through the defenses the player has built and reaches its objective. Upon loss of the last life, the game is over and the player is defeated.
The game can be played in three difficulty levels: easy, medium, and hard. In addition, there are several challenge modes available for those seeking more from the game. Challenges range from “The 100″, where the player must defeat 100 levels of successively difficult creeps to “3K Fixed”, where the player has to build a fixed set of towers (including the upgrades) with just 3000 gold. There are also various fun modes different in gameplay than the other, harder ones.
From: http://allcosplaycostumes.com/
