Harry Potter: Hogwarts Mystery forces you to pay – or wait – to save a kid from being strangled by Tom Phillips:

You have a finite bar of energy you can hold at one time, and when this is depleted you’ll need to pay up or just wait it out and keep checking back before time runs out. You regain one energy point every four minutes, and there’s no way to regain energy for free doing another activity. The only challenge involved is remembering the game’s clock is still ticking away while you’re doing other things, so you can then return in half an hour to finish what should have been a two minute experience.

The first time the game engineers you will run out of energy is in its first action scene, where – creepily – your character is left in a life or death scenario while you wait half an hour to continue. Charitably you could say this energy system adds a certain cliffhanger-esque nature to Hogwarts Mystery – but the amount of energy needed is a completely arbitrary number, and one deliberately designed to fully deplete your energy bar. The game encourages you to make a purchase and continue immediately rather than wait and leave your avatar suffering. It is especially troubling when you consider the game’s audience.