Minecraft is a sandbox video game developed by Mojang Studios. Created by Markus "Notch" Persson in the Java programming language and released as a public alpha for personal computers in 2009, the game was officially released in November 2011, with Jens Bergensten taking over development around then. Minecraft has since been ported to various platforms and become the best-selling video game of all time, with 200 million copies sold across all platforms and 126 million monthly active users as of 2020. In Minecraft, players explore a blocky, procedurally-generated 3D world with infinite terrain, and may discover and extract raw materials, craft tools and items, and build structures or earthworks. Depending on game mode, players can fight computer-controlled "mobs", as well as cooperate with or compete against other players in the same world. Game modes include a survival mode, in which players must acquire resources to build the world and maintain health, and a creative mode, where players have unlimited resources. Players can modify the game to create new gameplay mechanics, items, and assets. Minecraft has been critically acclaimed, winning several awards and being cited as one of the greatest and most influential video games of all time, being inducted into the World Video Game Hall of Fame in June 2020. Social media, parodies, adaptations, merchandise, and the annual MineCon conventions played large roles in popularizing the game. It has also been used in educational environments, especially in the realm of computing systems, as virtual computers and hardware devices have been built in it. In 2014, Mojang and the Minecraft intellectual property were purchased by Microsoft for US$2.5 billion. A number of spin-off games have also been produced, such as Minecraft: Story Mode, Minecraft Dungeons, and Minecraft Earth.