The first video game to popularize the concept of Easter eggs is Adventure, released for the Atari 2600 in 1980. In this game, players could discover a hidden room containing the developer's name, which was an unexpected surprise for users. Easter eggs have since become a staple in video games and software, representing hidden features or messages that reward exploration and curiosity. This practice enhanced user engagement and added an element of fun, contributing to the game's legacy in the gaming culture and the broader tech community.