The Fourth Edition of Shadowrun the Edition, that started in 2005 (Real time). It was first published by FanPro LLC. under license of WizKids Games and after the licende swap by Catalyst Game Labs under the licence of the Topps Company. Publications for Fourth Edition belong to the SR rulebook Shadowrun Fourth Edition and/or to the completely rewritten Shadowrun 20th Anniversary, published in 2009 (Real time).