Neat program, thanks for posting it. Also thanks for sharing the source! I tried it out on a WIP level which I'd already manually pruned a bit. From a ~170MB level it removed around 35MB. That slimmed down the zip from 92MB to 80MB. It would be great if the program could call 7zip to zip all the files NOT on the exclusion/delete list. That way additional assets could easily stay present for development, but packing releases would be an almost one-button affair. I haven't looked at the code, but if we could generate a listfile of stuff to include in the zip I think this might be an appropriate CLI call for 7z: 7z a -tzip -mx9 levelname.zip @listfile.txt for the List File syntax check the 7zip help under Command Line Version -> Syntax -> List file (subheading)