A mobile gaming subgenre characterized by strategic base protection on Apple’s operating system. Structures are placed along a path to impede or eliminate waves of enemies, preventing them from reaching a designated target. A prominent example involves fortifying a map with various defensive units, each possessing unique capabilities, to defeat increasingly difficult enemy incursions.
Its popularity stems from its accessibility and inherent replayability. The genre provides engaging, thought-provoking entertainment suitable for brief sessions or extended gameplay. The inherent challenge of optimizing defensive layouts and unit compositions provides continuous engagement. Its roots trace back to early real-time strategy games but have evolved to become a unique offering within the mobile gaming landscape.