The .NET Framework is a software framework developed by Microsoft that provides a large library of pre-built functionality, security, and a virtual execution environment for software applications. Many games, including Batman: Arkham City, rely on the .NET Framework to function correctly. When an error occurs, it usually indicates that there's a problem with the framework's installation or compatibility with the game.
. Windows will likely download files to complete the installation. Restart your PC once finished. 2. Run Manual Redistributable Installers batman arkham city .net framework error windows 10