Action role-playing game
An important influence on the action RPG genre was the 1986 action-adventure, "The Legend of Zelda", which served as the template for many future action RPGs. In contrast to previous action RPGs, such as "Dragon Slayer" and "Hydlide," which required the player to bump into enemies in order to attack them, "The Legend of Zelda" featured an attack button that animates a sword swing or projectile attack on the screen. It was also an early example of open-world, nonlinear gameplay, and introduced new features such as battery backup saving. These elements have been used in many action RPGs since.
The Legend of Zelda
Every game in the main "Zelda" series has consisted of three principal areas: an overworld in which movement is multidirectional, allowing the player some degree of freedom of action; areas of interaction with other characters (merely caves or hidden rooms in the first game, but expanding to entire towns and cities in subsequent games) in which the player gains special items or advice; and dungeons, areas of labyrinthine layout, usually underground, comprising a wide range of difficult enemies, bosses, and items. Each dungeon usually has one major item inside, which is usually essential for solving many of the puzzles within that dungeon and often plays a crucial role in defeating that dungeon's boss, as well as progressing through the game. In nearly every "Zelda" game, navigating a dungeon is aided by locating a map, which reveals its layout, and a magic compass, which reveals the location of significant and smaller items such as keys and equipment. In later games, the series includes a special "big key" that will unlock the door to battle the dungeon's boss enemy and open the item chest.