Flappy Bird

Flappy Bird is a 2013 casual mobile game developed by Vietnamese video game artist and programmer Dong Nguyen (Vietnamese: Nguyễn Hà Đông), under his game development company .Gears. The game is a side-scroller where the player controls a bird, Faby, attempting to fly between columns of green pipes without hitting them. The player's score is determined by the number of pipes they fly through. Nguyen created the game over a period of several days, using the bird from a cancelled game made in 2012.

The game was released in May 2013 but received a sudden spike in popularity in early 2014, becoming a sleeper hit. Flappy Bird received poor reviews from some critics, who criticized its high level of difficulty and alleged plagiarism in graphics and game mechanics, while other reviewers found it addictive. At the end of January 2014, it was the most downloaded free game in the App Store for iOS. During this period, its developer said that Flappy Bird was earning $50,000 a day from in-app advertisements as well as sales.