Warren Robinett is an American video game designer and programmer, best known for creating one of the first action-adventure video games, Adventure, for the Atari 2600 in 1980. His work on this game introduced the concept of hidden features, including the famous "Easter egg," which allowed players to discover a secret message within the game. In addition to his work on Adventure, Robinett contributed to the development of other video games and worked at various companies, including Atari and The Learning Company. His innovative ideas have had a lasting impact on the gaming industry, influencing game design and player engagement.