Encryption is only part of the issue (and in any case, AGS' own file obfuscation is lousy - most if not all Strings are searchable cleartext in the executable file). To me the main concern was the ability to bundle files of various formats in a single resource file. I'm probably just gonna add the functionality to my plugin, but it's kinda getting to the point where I'm rewriting so much base functionality that I might as well do a full AGS port.