테트리스 is a classic puzzle video game created by 알렉세이 파지노프 in 1984. Players manipulate falling geometric shapes called 테트로미노 to create complete lines on the game board. When a line is completed, it disappears, earning points for the player. The game continues until the shapes stack up to the top of the screen, ending the game. 테트리스 has been released on various platforms, making it one of the most popular and enduring video games in history. Its simple yet addictive gameplay has influenced many other games in the puzzle genre.