To start using Live Preview, just launch a preview as usual. When the preview is running, go back to the editor, do some changes and press the Preview button again. That's it!
Live Preview also works with the Network Preview. With the Network Preview, also called Preview over WiFi/LAN, you can try your game on your phone, tablet or even on other computer browsers - without having to export them. It's useful to quickly validate the gameplay on smaller devices, verify the game performance and try the game.
Learn more about running previews in GDevelop.