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
SethBling missiles at each other and trying to blow them up". In Missile Wars, players receive items which they can use to spawn missiles, and blow up, stop and defuse incoming missiles. Players can jump on missiles and ride them across the playfield. Cubehamster said that "subtle techniques" involving missile mechanics had made the game popular. According to Cubehamster, Missile Wars was built in two weeks and thoroughly tested afterwards. The game was featured on Minecraft Realms. As a nod to Microsoft's 2014 acquisition of Mojang, SethBling recreated basic functionality of "Minecraft" in Microsoft Excel, which included navigation and crafting. In