Wow, what a great game. The attention-to-detail with regards to majority of the items on display here is staggering. The sound design, the characters, the lore all build to this fully realised, depressing, cramped interior likened to an 80's style eastern European bloc. It all feels very 1984, with Cthulhu-esque vibes.
The story heightens the tension with The Church and the mysterious liquid that seems to have been discovered in the mines. When you download this game you also get a PDF booklet that explains more of the lore, and I for one want to experience more of this world.
Congrats on making a true gem of an indie slow-build body horror game. Definitely going to look out for future projects from you!