The 1970s introduced the first video games. Pong, created by Ralph Baer and released in 1972, was one of the earliest and most influential video games. It was a simple two-player tennis game that introduced players to basic video game concepts like controls and scoring. Space Invaders, released in 1978, was another influential early video game. It was one of the first "shooter" games and helped drive the popularity of arcade gaming. These early 1970s games laid the foundation for the evolution of video games.