Two reasons:

• generate engagement - a lot of people will disagree, which means a lot of people will click
• it lists (almost) all of the games, with a short description of why to play; that has value for me, since I like to play most of a given series I like

I personally don’t care about the order they give, I care more about the consolidated list of games. I especially like the “top XX games in {genre}” lists, because it helps me find fun games to play in a genre I like. Again, I don’t care about order, I’m just looking for a somewhat related list of well-known games.