This issue is most probably being caused if you have installed mods for the game. Fatal Error, Game Goes Back To Main Menu FixĬivilization 6 players have reported that when they launch the game they either get a Fatal Error or the when they play the game, it just goes back to the main menu. Right-click on the game’s exe > Set Affinity and uncheck the number of cores that you don’t want the game to use.
Launch the game > open Task Manager > Details tab. If that is not the case then I suggest lowering the number of CPU cores that the game is using. Check our Antimalware Service Executable High CPU Usage Fix. In most cases, its the Windows Defender or Antimalware Service Executable that is causing the high CPU usage. Open task manager to see if there is any process that is using CPU more than it should. First, make sure there is no process other than the game using the CPU.