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".
Role-playing video game
One of the earliest role-playing video game on a microcomputer was "Dungeon n Dragons", written by Peter Trefonas and published by CLOAD (1980). This early game, published for a TRS-80 Model 1, was just 16K long and included a limited word parser command line, character generation, a store to purchase equipment, combat, traps to solve, and a dungeon to explore. Other contemporaneous CRPGs (Computer Role Playing Games) were "Temple of Apshai", "" and "", the precursor to "Ultima". Some early microcomputer RPGs (such as "Telengard" (1982) or "Sword of Fargoal") were based on their mainframe counterparts, while others (such as "Ultima" or "Wizardry", the most successful of the early CRPGs) were loose adaptations of "D&D". They also included both first-person displays and overhead views, sometimes in the same game ("Akalabeth", for example, used both perspectives). Most of the key features of RPGs were developed in this early period, prior to the release of "", one of the prime influences on both computer and console RPG development. For example, Wizardry featured menu-driven combat, "Tunnels of Doom" featured tactical combat on a special "combat screen", and "Dungeons of Daggorath" featured real-time combat which took place on the main dungeon map.