I'm noticing things like this occasionally on GOG. Dreamfall and Dreamfall Chapters are in the 'Action' genre. Except... they are adventure games? Longest Journey is correctly under 'Adventure'. This means if sorting by category, part of the series is under one list, and the other part is under a different list?

This is annoying, because I sort my games by genre (I have a couple hundred of them) to make it easier to find a game I want to play, and I'm like, "I'm sure I own the rest of that series, but where is it?" and then I realise that I do own it, but it is listed under a different category.

Similar ridiculousness comes with games like No Man's Sky (minecraft-like sci fi shooter and space fighter simulator) being listed as an 'adventure' game. Who is deciding what genre games belong to? Or RPG's like Bioware's Jade Empire, or Risen, or Two Worlds, being listed as Action Games. Or Spellforce and Spellforce 2 being listed in one category, but their expansion packs being listed in a different category!