To package your game to be played on a particular platform, click on File in the main menu, then on Package Project, and finally, on the relevant platform that matches the build you want to make, as follows:
Once you click on a platform, you will be prompted to select a location on your hard drive to store the build you make. After selecting a location, you will see a popup that tells you that the engine is packaging the project. If something goes wrong in the packaging process, you will be shown the details of the error in the output log window that pops up. Packaging a project can take a bit of time, depending on how complex and large the project is, but if you don't encounter any errors, then you will eventually see a message saying that the packaging is complete. Congratulations, you have created a packaged copy of your game!
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