Ya encontré la solución, este era el problema x si a alguien le pasa lo mismo y necesita la solución:

Verify integrity of game cache

Load Steam
From the Library section, right-click on the game and select Properties from the menu.
Select the Local files tab and click the Verify integrity of game cache... button.
Steam will verify the game's files - this process may take several minutes.
Once the process is completed, the Check Window will automatically exit.

Slds