First of all - i do love the game. What comes to endgame i would love to see option to play it a bit like Nethack where you start with nothing low level and go deeper and deeper to accomplish the goal or die trying (usually the latter). That would make replayability with randomness between runs - and would be easy to create seasonal content by changing the endgoal etc. Mayby grow a bit stronger after each death, or found your old corpse with its gear -endless thing to do. Your engine would fit that perfectly i think, and if can create dungeon levels mostly automaticly then it would not be too time consuming to do. If you have played nethack you know what i mean. Anyway - gl on your future plans anyway.