what are space invaders?
A video game
Space Invaders
 the best-selling video game
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Space Invaders [SEP] Introduction
"Space Invaders" was an immediate commercial success; by 1982, it had grossed $3.8 billion, with a net profit of $450 million, making it the best-selling video game and highest-grossing "entertainment product" at the time. Adjusted for inflation, the many versions of the game are estimated to have grossed over $13 billion in total revenue as of 2016, making it the highest-grossing video game of all time. "Space Invaders" is considered one of the most influential video games of all time. It helped expand the video game industry from a novelty to a global industry, and ushered in the golden age of arcade video games.