Thoughts on Dungeon Afternoon

So, I'm at the beginning of a game I'm calling Dungeon Afternoon. It started with the idea of an RPG meets Neko Atsume. Then the idea of having little tea party style events you throw with multiplayer aspects.

Now, I have a bit more of the story fleshed out. You are a failed Dark Lord. The three heroes have defeated you and gave you one alternative to death. You must serve 10 years of community service and rebuild the lands you devastated.

You get to populate dungeons, wastelands, forests, and other areas. The local creatures are wary of you, and your own minions hate you. How will you succeed?