Looking great so far, and I really enjoy your frequent video updates that show off actual gameplay, rather than just posting exclusively screenshots throughout developement (not that there's anything wrong with that, of course, but videos are much more enjoyable, IMO).
I think your work is yet another great example that goes to show what can be done with Game Guru when a developer spends time tending to EVERY
aspect of game design in their project (gameplay, atmospheric visuals, scripts, custom/third party media, sounds, voice overs, cinematics, etc.), instead of just focusing exclusively on one or two of these things and calling it a day.
Quote: "Yet to hire the voice actor"
Not sure if you're aware of the resource already, but Fiverr
is an excellent place to find amatuer (and professional) voice over artists for pennies on the dollar, that I use to use all the time with great success. I'd recommend stopping there first if you haven't already; you can usually get around 150-500 words for about $5 USD, depending on the artist.
i5 7600K, GTX 1060 (3GB), 16GB RAM