Jens Bergensten Jens Bergensten Jens "Jeb" Bergensten is a Swedish video game designer. Since December 2010, he has worked for the video game developer Mojang as a programmer and game designer. He became the lead designer and lead developer of the indie sandbox game "Minecraft", after Markus "Notch" Persson stepped down from his position in December 2011. He is known by his in-game name "jeb_". Bergensten started programming his first games at age 11 using BASIC and Turbo Pascal. By age 21, he was a mapper and modder for the first-person shooter "Quake III Arena". Later he worked as a C++ and
Minecraft mods Around November 2011, the mod "Forge" was released. Rather than adding new gameplay features to "Minecraft", "Forge" allowed players to be able to run several client-side mods simultaneously. Before becoming compatible with "Forge", "IndustrialCraft" and "BuildCraft" would not run side-by-side, because both of them needed to overwrite the same "Minecraft" base Java files. "Forge" ended the necessity to manipulate these files, allowing separate mods to run together without requiring them to touch the base source code. After "Minecraft" received its first full release in November 2011, the game's modding community continued to grow. In February 2012, Mojang hired developers of