The game isn't finished. It's a demo (around 2 hours of gameplay).
The project has been on hold since last year.
I don't know when, or even if, I will continue the game because it's hard to find free time for something as time-consuming as 3D.
So for now, I'm focusing on other smaller projects.
Sooner or later I'll get back to 3D even if it's not for a game (because I miss it a lot) but with so little free time, I might just do things on my own to improve my 3D skills without necessarily posting them here (as you can see, very few people were interested in the game anyway).