Earlier quoted context omitted.
This is the kind of stuff that always trips me up: http://dwarffortresswiki.org/index.php/40d:Controls#Building... Several different sets of keys to use depending on what you're manipulating, even though they all have to do with direction. I can never remember and always have to use the in-game help. Whereas, when I play nethack or DCSS or brogue, 99% of the things my fingers do, they do without needing to consult th…
We place a strong emphasis on usability and interface in crawl. For example, we actively avoid putting items in the inventory slot corresponding to using them: potions shouldn't land on 'q', food on 'e', etc. Another advantage is that we're dealing with a simpler game. Brogue takes this one step further and I think does a fabulous job. For example, there are no inventory stacks on the floor. Either there's an item or…
I haven't played DCSS in a few years, but when I did, it was literally feast or famine: I would either be walking around with dozens of rations or else dying of hunger all the time. Herbivorous races like Spriggans didn't have very high food consumption but also didn't have many options in case they didn't find vegetarian food.
I read the summary page for the usability study, it seemed to give tons of (in particular) very _actionable_ feedback.
[0] Nethack, as much as I love it, causes brain damage in the same way that BASIC does: it shapes the way your brain works in a disadvantageous way. Consider that all of the nethack variants _add_ features (and are unabashed about it, SLASH stands for Super Lots of Added Stuff Hack).