How do you play a downloaded game

1. Open the file where you've downloaded the installer
2. Run through all the steps and choose where u wanna save the game

3. once the game installing is finished(if you choose during the installation if you want a shortcut on the desktop) an icon will be there on your desktop ior you can also check the start menu and click w/e the game company or name is and click that and then click on play <games's name>