Tower Defense is a strategy game genre where players must defend a base or path from waves of enemy units by strategically placing defensive structures, known as towers. Each tower has unique abilities, such as ranged attacks, slowing effects, or area damage, and must be upgraded to handle stronger enemies. Players earn currency by defeating foes, which can be used to build new towers or improve existing ones. The challenge lies in optimizing tower placement, managing resources, and adapting to increasingly difficult waves. Some games feature special abilities or hero units to assist in defense. With various maps, enemy types, and tower combinations, Tower Defense games require careful planning and quick decision-making to succeed. Popular for their addictive gameplay, these games test tactical skills in fast-paced, strategic scenarios.