During my work on my client, I have created a resource extraction tool. Now if someone wants to create a Unity client, they can at least see most of the games resources all unpacked and neat. Note: this does not unpack the font, anim, neg or codeentry layers.
Usage: java -jar ResourceExtractor.jar /path/to/hafen/res /path/to/builtin/res
Output: all the res files unpacked in a folder named "output" in the same directory
Download: https://github.com/Limitless0/Limitless ... ractor.jar