Tap the APK file. Press "Install." Do not open the game yet! This is the most common mistake. If you open the game now, it will crash.
Ensure the APK comes with the necessary OBB data files so you aren't stuck with a "missing file" error after installation. How to Download and Install Devil May Cry 4: Refrain APK Tap the APK file
The game offers a range of features, including: Tap the APK file