Click the three dots (...) next to your drive and select . Repairing files :: Help and Tips - Steam Community
This is the most common fix for broken or missing game files.
* right click on the game. * left click "properties" * go to installed files tab. * click verify integrity of game files. Steam Community steam library repair question
: Click the Verify integrity of game files button. Steam will scan and redownload any corrupted data. 2. Repair Steam Library Folder