TD refers to games in the genre of highly specialized strategies, where the player must confront waves of enemies who seek to overwhelm with numbers and win back key defensive positions. In a sense, Tower Defense intersects with the games of the Zuma, Luxor series, where it is also necessary to eliminate the “snake” from the balls until the level is completed. But, unlike more primitive casual counterparts, TD games with similar gameplay have some features:
- Expanded pumping system. Pumping the defense system is necessary, because with the passage of levels, the strength and power of the advancing enemies invariably increases.
- Possibility of arbitrary installation of the defense system. One of the main features of the genre: the player himself chooses how and in what order he builds the defense system in accordance with specific tactics for the battle.
- The system of experience and monetary reward for each killed enemy. Allows you to receive funds for further modernization, or replacement of elements of the defense system.
- The possibility of combining the defense system. Effective interaction of the defense system by combining the strengths of each element is the main task of the player in battle.
- The ability to quickly intervene the work of the protective system. Damage and losses are indispensable: the player needs to regularly turn on the thinker and intervene to eliminate malfunctions so that the defense does not lose in effectiveness.
Summarizing, we can say that all games of the TD genre are similar to each other, where the main difference is the setting, the model for building a defensive line and the flexibility to customize the elements of the defense system. An example is the Plants Vs Zombie series.
