Apparatus and method for managing gaming engine file in a mobile platform

The present invention relates to managing a UNITY file in a mobile platform in order to forestall a UNITY library executable in a mobile platform from being analyzed by reverse engineering and decompiling and provides an apparatus for managing a UNITY file in a mobile platform comprising a file extracting section that extracts a UNITY library file from a UNITY application; an encrypting section that encrypts a programming library file in the UNITY library file thus extracted and creates an encrypted programming library file; a file creating section that creates a decrypting library to decrypt the encrypted programming library file and creates a secured UNITY application using the decrypting library and the encrypted programming library file; and a file executing section that, upon request to execute the secured UNITY application, executes the secured application by decrypting the encrypted programming library file using the decrypting library.