Losing access to your game account linked to Facebook can be frustrating. Fortunately, there are steps you can take to try and recover it. First, check if the game offers a built-in recovery option, often found in the settings menu. If not, contact the game's support team directly, providing them with as much information as possible about your account, such as your user ID, game name, and purchase history. Additionally, review Facebook's help resources for assistance with account recovery, as it might be possible to restore your Facebook account itself, which could restore access to your game account.