If you are looking to take the fight against Mech-Morphix to your mobile device, here is everything you need to know about the process. Why Play Duke Nukem: Manhattan Project on Mobile?
This almost always means the OBB file is missing or in the wrong folder. Double-check that it is in Android/obb/ . duke nukem manhattan project android apk install
Find your downloaded OBB file (usually named com.sunstorm.dukenukemmp ). If you are looking to take the fight