Hi cyoungmi,
Glad you are enjoying the game! The dungeon crawl feature is still something I dream about delivering, but for various reasons, is not something as simple as a feature release I can announce at this time. Not the most exciting answer (I know) but I have confidence that when such a time comes, my next announcement will go far to meet the expectations you and so many of our community here have shared.
Feel welcome to hit me up over email if you have additional questions
ross@d20studios.com