Mojang 2012, Mojang was co-developing a video game codenamed "Rex Kwon Do" alongside an undisclosed developer. Before the title had reached a significant stage of development, Mojang cancelled the collaboration, due to their lack of involvement and influence on the project. In March 2012, Persson revealed that he would be designing a space sandbox game. Although Mojang teased with an April Fools' Day website based around "Mars Effect" (citing the Bethesda lawsuit), it was confirmed that the game was indeed in development, albeit with a different name. On 4 April, Mojang revealed the game's title to be "0x10", set in the
Minecraft mods project. "Minecraft" mods are credited for being a gateway for children to pick up coding and programming. Several educational projects have been created to further encourage students to learn coding through "Minecraft", including LearnToMod, ComputerCraftEdu, and Minecraft: Pi Edition, all of which are offered free to teachers. Programming classes utilizing "Minecraft" were also started by the University of California, which aims to teach children aged 8–18 how to program applications. In 2011, "MinecraftEdu" formed to sell a version of Minecraft to schools that enabled the teaching of a wider variety of subjects including language, history and art. In January 2016,