The first video games were simple extensions of electronic games using video-like output from large room-size computers in the 1950s and 1960s, while the first video games available to consumers appeared in 1971 through the release of the arcade game Computer Space, followed the next year by Pong, and with the first home console the Magnavox Odyssey in 1972. Today, video game development requires numerous skills to bring a game to market, including developers, publishers, distributors, retailers, console and other third-party manufacturers, and other roles.
Since the 2010s, the commercial importance of the video game industry has been increasing. The emerging Asian markets and mobile games on smartphones in particular are driving the growth of the industry. As of 2018, video games generated sales of US$134.9 billion annually worldwide, and were the third-largest segment in the U.S. entertainment market, behind broadcast and cable TV.