Minecraft led to Persson becoming one of "Forbes" "World's Billionaires". "Minecraft"s music and sound effects were produced by German musician Daniel Rosenfeld, better known as C418. The background music in "Minecraft" is instrumental ambient music. On 4 March 2011, Rosenfeld released a soundtrack, titled "Minecraft – Volume Alpha"; it includes most of the tracks featured in "Minecraft", as well as other music not featured in the game. The video game blog Kotaku chose the music in "Minecraft" as one of the best video game soundtracks of 2011. On 9 November 2013, Rosenfeld released the second official soundtrack, titled "Minecraft – Volume
Mojang initiative started in October 2011, "Mina Kvarter" (My Block), which gave young people in Swedish communities a tool to visualize how they wanted to change their part of town. According to Manneh, the project was a helpful way to visualize urban planning ideas without necessarily having a training in architecture. By 2016, 300 of the areas UN-Habitat plans to remodel will be recreated in "Minecraft". ZeniMax Media, the parent company of Bethesda Softworks, filed a lawsuit against Mojang on 27 September 2011, claiming that Mojang's planned trademark of the title, "Scrolls", infringed upon Bethesda's trademark of "The Elder Scrolls" series.