Wikipedia
Stolen! was a mobile game released as a closed beta in November 2015 for iOS, in January 2016 the game quickly gained popularity on Twitter and the internet in general. The goal of the game was to buy Twitter accounts and collect money from those accounts. If another person owned a Twitter account, the player could "steal" it from the person. The only way to play the game was to have an access code, either from another player or from the developers themselves. The game's servers were taken offline on January 14, 2016, and the game was removed from the App Store, due to concerns about the game's potential to be used for harassment. An Android version was being tested prior to the cancellation of the app.
On February 19th, 2016, the developers revived the game as Famous.