Since I've read this thread, I decided to give Lord of Darkhall a spin.
I had to wine the game, but I get a performance which is ridiculously slow, so I don't think I am gonna play the game again.
Anyway, I have seen great ideas on the little time I've played: for instance, the "skill tree" approach is certainly cool. I also like how you get to pick up where to spend your points at level up, as well as the relations between attributes and game factors like mana, health, etc. I have not liked the graphics much, since I am more of an ASCII person, but I could live with that just fine.
What I really didn't like was the way to manage your inventory... I don't like having to use the mouse for roguelikes. Maybe I didn't pay attention and there is another way of handling items, though. Also, the same "no mouse policy" applies to the skill tree screen and the level up screen.
Anyway, good work, and I hope you keep being a roguelike developer!