Adventure game
An adventure game is a video game in which the player assumes the role of a protagonist in an interactive story driven by exploration and puzzle-solving. The genre's focus on story allows it to draw heavily from other narrative-based media, literature and film, encompassing a wide variety of literary genres. Many adventure games (text and graphic) are designed for a single player, since this emphasis on story and character makes multi-player design difficult. "Colossal Cave Adventure" is identified as the first such adventure game, first released in 1976, while other notable adventure game series include "Zork", "King's Quest", "The Secret of Monkey Island", and "Myst".
Steve Ritchie
Ritchie moved to Chicago, Illinois, the home of Williams' headquarters. His first game for the company, "Flash" (released in 1979), was noted for its revolutionary figure-8 design and the first pinball game to feature bright Flash Lamps. It would go on to be his best-selling pinball game, having sold 19,505 units. 1980 would be the year for Ritchie, when he designed "Firepower" (the first electronic pinball to feature multi-ball, as well as Lane Change), and eight months later, he designed "Black Knight", which was noted for having the first two-level playfield and the patented "Magna-Save" feature (in which magnets help prevent outlane drains).