Well, not sure how much coding it would be, but ADOM has a nifty feature. It's basically Ironman (it deletes the save file upon load), if you die, it's the end. But it still keeps autosaves that the game somehow uses if the last play session was not ended gracefully. I don't know the technical details but it works pretty well. Any crashes, power outages and even save file corruption is averted. Probably too complicated for OXCE to implement it though, just for the sake of a feature that is used mostly for challenges.