I would like to have an ironman modus added , like in X-Com . I think its easy to implement and it would add a lot incentive for me to keep playing .
At moment i am playing on deadly . Its challenging specially at the start . But since i can save and load the game when ever i want , i can avoid losing battles and never really lose anyone . I hope you can add this feature and maybe start a leaderboard for it , to see who can survive more days :)
One thing that could make it hard are random events like the illness you sometimes get when walking in swamps or icy regions . Having half your party ill for 4+ days without being able to cure them can easily make you bancrupt . Maybe there could be a cure added you can buy in a shop or the temple can cure it .
In any case , thank you for the great game you created and please keep working on it .