Devsisters co-founder and co-CEO Ji-hoon Lee founded the company Extra Standard together with others in 2007 with the goal of developing edutainment software.

[2] Operation under the name Moblier began on January 2, 2009, and was led by Ji-hoon Lee (CEO), Se-joong Kim (COO) and Min-woo Ryu (CSO).

[15] Only after shifting its focus onto the Korean market, Devsisters saw its biggest success yet with Cookie Run, a spiritual successor to the OvenBreak series released on April 2, 2013, via the messaging app Kakao Talk.

[19] On January 29, 2014, LINE Corporation launched Cookie Run globally (except China and South Korea), with translations into Chinese (Traditional), English, Japanese, Spanish and Thai.

[24] However, during a month-long open beta phase that started in December 2014 with 16,000 players, the game did not meet requirements made by platform owner Tencent and thus the service was cancelled.

[27] In October 2013, NHN Entertainment announced the purchase of a 22% share in Devsisters at 5.6 billion Won, 7.4% of which were bought by earlier investor Com2Us, who had previously owned 14.8%.

[32] In late 2014, an analyst for Yuanta Securities mentioned in an evaluation of Devsisters: "There's too much dependency on a single game, which is the biggest risk for the company".

[33] By 2015, the popularity of Cookie Run began to wane, resulting in Devsisters' revenue dropping to 19.5 billion Korean Won for that year.

[38] Under the title Cookie Run: OvenBreak, the sequel was finally soft-launched on the Apple App Store and Google Play in Canada, Australia, Hong Kong, Philippines, Netherlands, and Sweden on September 27, 2016.

Ranked within the Appstore top 10 in Italy, Germany, France and Spain in 2010[1] Received several major updates 2009-2012Most downloaded free app in 20 countries, including the US, in 2011.

[1] Pandadog licensed by Funnyeve First 3D social web game in Korea Created in cooperation with Hotdog Studio Discontinuation of service announced on December 11, 2013 International version LINE Cookie Run published by Line Corporation on January 29, 2014[20]Downloaded more than 87 million times globally[citation needed] Soft launch in Australia, Canada, Hong Kong, Philippines, Netherlands, and Sweden on September 27, 2016[citation needed] Soft launch in Canada, Hong Kong, and Thailand on July 26, 2018[50] Besides video games, Devsisters developed and published a variety of other apps for entertainment and utility purposes for the iOS App Store.

[54] The announcement was panned by fans, who demonstrated their opposition to the plans mainly due to the environmental impact related to NFTs and blockchain technology.