How about Dungeon101. Similar to wizard101 and Pirate101 but doing dungeon quests and you move around more in battles. Dungeons can be: Caves, Castles, Towers, Graveyards, etc.. filled with multiple rooms to explore with a chance to find items along with drops. There can be up to a few bosses to fight and one of the rooms has the main boss. If you ran out of time to finish, you can click save so you don't loose your spot. This is just a thought.