1. Press your profile image at the top right side of Facebook.

2. Select ‘Settings & privacy’ and then ‘Settings.’

3. Select ‘Apps and websites’ from the left side menu.

4. Search for ‘World War: Machines Conquest’ and

press ‘Delete.’

5. Click ‘Delete’ again at the deletion notice screen.

For more details concerning this process, please check Facebook Help. [Go]