[Request][PC] "Exanima" .RPK files

[XZS42]

I'm looking for a tool to open/extract the PRK files, for the game Exanima.
Here is a zip file with some samples : http://www43.zippyshare.com/v/DOc5ys3m/file.html

For information, it seems the game is based on an in-house engine.
I had no luck with QuickBMS nor offzip so far...

For those who don't know Exanima, it is an indie physics-based isometric action RPG, in Early Access:
https://www.youtube.com/watch?v=6Kq4lf4W-fE

Thanks!

[aluigi]

http://aluigi.org/bms/exanima.bms

[XZS42]

Wow! As usual, you're the man, Aluigi

It works like a charm, unfortunately, all the files inside these archives are of some unknown type (not a surprise, but even the textures are in a weird format).

[aluigi]

Yeah, uncommon formats are annoying.
Maybe someone else has more information.