Check whether your Chromebook supports Android apps
Open the Google Play Store on your Chromebook
Sign in with your Google account
Search for Clash Royale
Install Clash Royale
Open the game from the app launcher
Sign in to your Supercell ID or Google Play account if needed
Adjust keyboard, mouse, or touchscreen controls as needed
Update the game through the Play Store when prompted
If the Play Store is unavailable, enable Linux or use a supported Android app method only if your Chromebook allows it