Hearthstone

Severe

• Paid loot boxes

  You pay without knowing what you get. The good stuff is rare, so you pay again and again.

  Evidence: 5 producto(s) a la venta, p. ej. «Pack de 7 sobres clásicos»

• Premium currency

  You do not pay in euros, you pay in gems, so you lose track of the real cost.

  Evidence: Wikipedia (en): «Players can then buy packs of new cards through gold or microtransactions to customize and improve their decks.»

• Pay to win

  Whoever pays wins more easily. If you do not pay, you lose to those who do.

  Evidence: Wikipedia (en): «" Commentators have noted that Hearthstone can suffer from "pay to win" mechanics, that those that invest monetarily into the game to get new cards and packs have generally a better chance of winning,»