Click Open Anyway . You may need to authenticate with your password or Touch ID. After this, a final dialogue will appear with an Open button; click it to launch the game. 2. Terminal-Based Attribute Fix

One more turn? Only if your game actually opens. Many Mac players encounter the frustrating "app is damaged" error or performance stutters, especially after major macOS updates. Here is the definitive guide to fixing these issues and making Civ 6 run flawlessly on your machine. 1. The "App is Damaged" Fix