Early history of video games
Throughout the rest of the 1960s, digital computer games were created by increasingly numerous programmers and sometimes sold commercially in catalogs. As the audience for video games expanded to more than a few dozen research institutions with the falling cost of computers, and programming languages that would run on multiple types of computers were created, a wider variety of games began to be developed. Video games transitioned into a new era in the early 1970s with the launch of the commercial video game industry in 1971 with the display of the coin-operated arcade game "Galaxy Game" and the release of the first arcade video game "Computer Space", and then in 1972 with the release of the immensely successful arcade game "Pong" and the first home video game console, the Magnavox Odyssey, which launched the first generation of video game consoles.
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.