If Steam is a monopoly because they dominate the market, I will keep calling Windows a monopoly for as long as game publishers keep unfairly blocking users of other operating systems from playing their games.
Valve has been hit by yet another class action lawsuit in the Netherlands, this time from Consumer Competition Claims (CCC).
The CCC claims that Valve holds a dominant position in the market, estimated at around 85%, and is breaching competition law through so-called "Most Favoured Nation" clauses. They argue that Valve’s 30 percent cut on all game sales is too high and reflects monopolistic behaviour. Dutch consumers have suffered total damages of more than €220 million. Source: GameClaim