In May 2016, German game-development company Crytek made a decision to upload the source code of their game engine CryEngine V to Github (https://github.com/crytek-cryengine/cryengine). The engine is written in C++ and has immediately attracted attention of both the open-source developer community and the team of developers of PVS-Studio static analyzer who regularly scan the code of open-source projects to estimate its quality. A lot of great games were created by a number of video-game development studios using various versions of CryEngine, and now the engine has become available to even more developers. This article (http://www.viva64.com/en/b/0417/) gives an overview of errors found in the project by PVS-Studio static analyzer.