Remember to kill a rat, then sleep, fight, sleep, avoid dying at all costs, fight sleep level up and explore. I found a firstorm sword on my first character in the starting dungeon and it allowed me to kill everything and easier progression. So completeing the starting dugeon completely might gift you a powerful weapon, and is highly recommended. Fear the rats, but don't let them kill you, sleep near lit places is everything or you won't get too far in your first class.
