The "Unlocked" status typically means premium items, characters, or maps that usually require hours of gameplay or in-app purchases are available from the start.
Enable "Unknown Sources" in your device settings and install the APK. Dead Rivals Zombie MMO Hack 1.0.3a (MOD,Unlocked) Apk Data
Extract the OBB folder to Android/obb/ on your internal storage. Dead Rivals Zombie MMO Hack 1.0.3a (MOD,Unlocked) Apk Data