Brigade E5: New Jagged Union (Russian: Бригада Е5: Новый Альянс) is a real-time tactical role-playing game game developed by Russian developer Aperion. It was released in 2005 in Russia, and on 17 October 2006 in North America. It has received poor reviews from critics and has a rating of 41 out of 100 from Metacritic, but nevertheless has userscore 7.6 out of 10 on the same source. Mark Birnbaum of IGN called it "without exaggeration...one of the worst games I've ever played". Regular gamers like this game for its realism, tactical and weapons details. The sequel, 7.62mm, was already released in Europe in 12 September 2008 and was released in North America later in 2008.