Jens Bergensten (née Thornell). 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
Minecraft 2 Player Productions. In 2014, an attempt to crowdfund a fan film through Kickstarter was shut down after Persson refused to let the filmmakers use the license. A Lego set based on "Minecraft" called Lego "Minecraft" was released on 6 June 2012. The set, called "Micro World", centres around the game's default player character and a creeper. Mojang submitted the concept of "Minecraft" merchandise to Lego in December 2011 for the Lego Cuusoo program, from which it quickly received 10,000 votes by users, prompting Lego to review the concept. Lego Cuusoo approved the concept in January 2012 and began developing