Very interesting style, I don't think I've ever seen anything quite like it, and that's a rare sight in this age where everything's been tried. If the caves are fully randomly built every time, then that's an incredibly impressive feature that will make this game a true roguelike survival horror game in the future.
I like how it plays. The physics-based interactions between the player, monsters, tools and the environment feel organic and fun.
The sound effects work well, and a suitably moody ambient track would really bring the action to life. I definitely think there's a big audience out there for this sort of game, especially given the amount of innovative visual and gameplay design decisions it makes.