Role-playing video game
Typically action RPGs feature each player directly controlling a single character in real time, and feature a strong focus on combat and action with plot and character interaction kept to a minimum. Early action RPGs tended to follow the template set by 1980s Nihon Falcom titles such as the "Dragon Slayer" and "Ys" series, which feature hack and slash combat where the player character's movements and actions are controlled directly, using a keyboard or game controller, rather than using menus. This formula was refined by the action-adventure game, "The Legend of Zelda" (1986), which set the template used by many subsequent action RPGs, including innovations such as an open world, nonlinear gameplay, battery backup saving, and an attack button that animates a sword swing or projectile attack on the screen. The game was largely responsible for the surge of action-oriented RPGs released since the late 1980s, both in Japan and North America. "The Legend of Zelda" series would continue to exert an influence on the transition of both console and computer RPGs from stat-heavy, turn-based combat towards real-time action combat in the following decades.
Edmund McMillen
The game was the result of a week-long game jam between McMillen and Himsl to develop a "The Legend of Zelda"-inspired roguelike that allowed McMillen to showcase his feelings about both positive and negative aspects of religion that he had come to discover from conflicts between his Catholic and born again Christian family members while growing up. McMillen had considered the title a risk but one he could take after the financial success of "Super Meat Boy", and released it without much fanfare to Steam in September 2011, not expecting many sales. The game soon gained popularity partially as a result of various Let's Play videos showcasing the title. McMillen and Himsl released an expansion "Wrath of the Lamb" in May 2012, but were limited from further expansion due to limitations with the Flash platform. They had started working with Nintendo in 2012 to release a 3DS version, but Nintendo later backed out of the deal, citing controversy over the game's religious themes.