The last thing we still need to do is create a build from our project. This can be done with a few simple steps. A build needs to be made, in order to play the game outside of the editor.
First, we need to get to the build settings. Click the 'file' button in the top left corner and choose "Build Settings". This will open a new window allowing you to change settings about the build. Make sure that you have no errors in the editor or the build process will not be completed.
Make sure your scene is selected as seen on the top left of the image. You can move on to creating the build next, which can be done by hitting the "Build" or "Build and Run" option – it doesn't matter which one you choose. Simply choose the location where you want to save the build, and Unity will automatically handle the rest.