Atomic Heart developer Mundfish has revealed Patch 1.13.4.0, a smaller update which aims to bring a handful of bug fixes to the main game, as well as to its recently released Trapped in Limbo DLC. Having launched about a year ago, Atomic Heart had garnered mixed reception with a rocky start and prominent bugs. Despite this, the first-person shooter is known for its wildly unique art style and refreshing alternate history setting.