DotGears Company Limited (
trade name: .Gears) is a Vietnamese
video game developer based in
Hanoi that specialises in
mobile games. The company was founded in 2005 by Dong Nguyen,[2][a] and is best known for developing the 2013 game Flappy Bird, which became popular due to its simple mechanics but high difficulty.[4] As of December 2015, the company employs six people, including Nguyen.[4]
After releasing multiple games that copied the Flappy Bird mechanics, .Gears partnered with Japanese developer Obokaidem, which the developer maintained would be .Gears' only partner "for the foreseeable future".[5] In January 2017, the two companies released their first co-developed game, Ninja Spinki Challenges!!, which is nothing like its previous titles and is composed of different mini-games.[6] It uses different mechanics compared to Flappy Bird but is still considered by critics to be equally difficult.[7][8]