– Go to our website (ace333.casa) for searching the Ace333 download. Choose the Android version of Ace333 for downloading apk file. Make sure the device enable to install this game apk by opening "Unknown source" in device setting. After finished installation, you can enjoy the game. There is no any charge of downloading Ace333 and registering account from Customers Support. Samsung devices: Go to your phone’s settings >>> Security & Privacy >>> More setting >>> Install apps from external sources. >>> Select the browser you want to download APK files. Android 8 and above devices (other than Samsung): Go to your phone’s settings >>> Biometrics and Security >>> Install unknown apps. >>> Select the browser you want to download APK files. Android 8 and earlier version: Go to your phone’s settings >>> Security >>> Under Device administration.