However, this can add up very quickly if you are not careful. This can be somewhat frustrating when you run out of energy before completing a task.Įnergy can also be earned by purchasing it with real money from the game's microtransactions. As you do more things throughout the game, you'll use up your energy and will have to either gain more or wait for it to refill over time. In Harry Potter: Hogwarts Mystery, you need to have energy in order to execute a number of different actions in-game.