Tetris

Tetris was initially launched in 1984 and is one of the few legendary vintage games still being developed today. It is one of the earliest video games ever made and one of the few ones whose formula has stayed mostly intact over the years. Its fundamental architecture and relative simplicity make it simple to transfer to almost any machine that can play video games. It is the best-selling digital download game of all time, having sold over 140 million copies as of today.

For almost 30 years, players have been enthralled by the falling puzzle pieces and difficult physics, and the world's obsession with Tetris and the need for challenge never seems to wane.

Gross value: 140 Million

Link: https://tetris.com/play-tetris