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
Mojang Using "Minecraft", the community has helped reconstruct the areas of concern, and citizens are invited to enter the "Minecraft" servers and modify their own neighborhood. Carl Manneh, Mojang's managing director, called the game "the perfect tool to facilitate this process", adding that "the three-year partnership will support UN-Habitat’s Sustainable Urban Development Network to upgrade 300 public spaces by 2016". Mojang signed "Minecraft" building community, "FyreUK", to help render the environments into "Minecraft". The first pilot project began in Kibera, one of Nairobi’s informal settlements, and is in the planning phase. The "Block By Block" project is based on an earlier