I have gone through about 15 different characters in ADOM in the Last few days. I'm not getting very far because I keep getting killed. At first, I wasn't paying attention to my hunger level, so I starved to death, and so then I improved my 'food preservation' skill whenever I can, and whenever there was a dead monster left after a fight, I ate it before it rotted.
So the food situation was OK, but then when I go past the first couple of towns to the west, I keep getting killed by a group of chaos sisters who are really strong and I always die. So I tried to build up my levels before I meet them, by wandering around the wilderness and fighting random monsters. This worked to a certain extent, but inevitably I have an unlucky battle and die.
ADOM is more difficult than most other RPG's I've played... gaining a few levels does not make the battles easier by that much even when you fight the same monsters; also you can't revert to a saved game when you die - you have to start all over. Oh well, keep trying!
Angband seems to be a bit easier. I haven't played this one very much so far. The labyrinth is huge and I haven't gone very deep because I know I'll get lost. I'm thinking of finishing ADOM first before I go back to Angband...