The game is simply unusable under linux.
Each time you enter a room where there is a fight or a dialog with someone the game bug and the "pda" stays on screen.
I tried to reach the developers but no answer so far.
Its a big disapointment for me as I expected so much from this game. I am considering to ask for a refund.

Works perfectly (except for the usual unity3d loading slowness) for me; I've been playing this a lot over the last few days. Maybe you need to provide a little more system info, or maybe contact gog support. Perhaps some of your libraries are mismatched, e.g. the C++ ABI.

The game devs answered to the message I sent them throught their website contact form.
I sent them my player's log and hope that it will help finding the root cause of the problem.

Anyway their reactivity to answer to my email is really appreciated.

Everything is fixed in the 1.0.1 version.

It was a "local" problem.
It seems that unity based games must be launched with a LANG_ALL=C environment variable.

The dev I was in contact with, Dmytro Zhovtobryukh (CEO and co-founder of Snowhound Games), was very kind and really cared about user's feedback and really want to provide the best game for trully everyone.

Good job guys it is really appreciated !

If a mod or someone can change the topic as [Solved] it would be great.