1. Open the Epic Games Launcher on your computer.
2. Go to your Library by clicking on the "Library" tab in the left sidebar.
3. Find the game you want to verify in your library. Underneath the game icon, you will see the word "Launch" with three dots next to it.
4. Click on the three dots or right-click on the game icon.
5. From the drop-down menu, click on "Manage".
6. Once the Manage page opens, you will see a list of options. Click on "Verify" from the list of options.
7. The verification process will begin, and depending on the size of the game, it may take a few minutes to verify all your files.

Verifying the game files in Epic Games can help identify and fix any corrupted or missing files that may be causing issues with the game.

Note: These instructions are specific to the Epic Games Launcher on a computer. The steps may differ if you are using Epic Games on a different platform or device.