If anyone is interested - game runs on Linux under Wine perfectly.
Even more, it runs natively, albeit without sound due to not having Linux libraries in FMOD.
What interesting is that fmod-jni.jar seems to be build with Mac libraries. So if someone have Mac Book on hands you may try run this game on it. (!!!No guaranties as I have no idea how Mac works with OpenGL!!!).
Games seems like a lot of fun (around 2 hours in) and in very good shape for a beta. All minor problems already outlined in comments below. (Especially agreed on high variability in mystic usefulness)