Upload your files in the builder
Build a demo APK first to try it on your phone; Builder Pro builds the full app and the AAB.
Export, ZIP, upload
Phaser, PixiJS, Construct, GDevelop and plain Canvas games all export a folder with an index.html. ZIP that folder and upload it in the builder. Everything runs from inside the app, so the game works on a plane.
Settings for games
Turn pull-to-refresh off — a downward swipe in a game should not reload it. Skip the page loader and bottom tabs. A splash screen with your game's logo makes the start feel polished.
Touch and audio
Make sure every action has a touch control. Browsers, and the WebView, only start audio after the player taps once, so start music on the first tap.
Saving progress
Use localStorage for scores, levels and settings. It persists between launches inside the app.