Thanks for playing! I'm glad you enjoyed enough to play it multiple times until you got an ending!
I'm definitely thinking about possibly adding an undo option, although I'm trying to figure out how to do it without players relying to much on it. For example, a player could play an action to draw a card, not like the card, undo that action, and use their action on something else. You could say if a player wants to "cheat" like that, why not just let them, it is a single player game after all. But I don't know, it doesn't sit right with me. Still thinking about it.