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
Early access this model is "Minecraft". The game's development began in 2009 by Markus Persson initially for internet browsers that he developed alongside his full-time job. The alpha-version game proved popular enough that within the month of release, Persson added a means by which players could pay 10 euros (approximately 15) to access the game, allowing him to continue its development. As sales of the game increased, he was able to quit his job about eight months later to work on the game full-time, founding Mojang to bring on a larger development team. "Minecraft" continued to offer early access throughout its development