What is the only videogame franchise originating in the 1970's to have thus far generated over $1 billion in revenue?

The classic arcade game, Space Invaders, stands as a monumental achievement from the early days of video gaming. Released by Taito in 1978, this groundbreaking title is the only video game franchise originating in the 1970s to have generated over $1 billion in revenue. By 1979, the game had already grossed more than $1 billion, and by 1982, its revenue, adjusted for inflation, was estimated to be around $14 billion, making it one of the highest-grossing entertainment products of its era.

Space Invaders, designed by Tomohiro Nishikado, rapidly became a global sensation, single-handedly igniting the "golden age of arcade video games." Its immense popularity led to a dramatic boom in coin-operated arcade machines, and there were even rumors in Japan of a 100-yen coin shortage due to the game's overwhelming demand. Beyond the arcades, its influence extended to home consoles; the 1980 port for the Atari 2600 is credited with quadrupling sales of the console and is often considered the first "killer app" in video game history.

The game's simple yet addictive mechanics, featuring a player-controlled laser cannon defending against descending rows of alien invaders, captivated audiences worldwide. This innovative design, along with its distinctive pixelated aliens and memorable sound effects, set new standards for game development and profoundly influenced countless subsequent titles across various genres, including early first-person shooters. Space Invaders not only achieved unprecedented financial success but also cemented its place as a cultural icon, with its imagery becoming synonymous with video games themselves.