How do I verify integrity of game files?

Below are the steps needed to have Steam check the integrity of the game files for games on their platform should issues arise.

Verify on Steam:

1. Launch Steam.
2. From the Library section, right-click on Grounded and select Properties from the menu.
3. Select the LOCAL FILES tab and click the VERIFY INTEGRITY OF GAME FILES... button.
4. Steam will verify the game files.