In the first level, Maria needs to reach the castle and defeat the boss.
There are 5 side quests, a lot of dungeons, treasuries, a mini-Boss in the magicians tower, and Leaderboards.

Leaderboards?
Yes, because Maria loses mana and returns to base to regain it. I think it would be cool to compete to see who would spend the least mana on the way to the Boss.
Someone will want to explore the level, farm, and try different builds. Such a player will likely find the boss more prepared.
Other players will want to speedrun the game and Maria's strength will be minimal.
Therefore, each boss has two separate leaderboards:
1) how much mana was spent during the last run;
2) all mana spent for the entire game;

The demo is available for Windows.
Stay tuned.