Been a hardcore adventure gamer since the days of text-based glory in the 80s. Never thought I'd care about these hidden object games, to be honest the vast majority of them are tragically primitive. These Artifex Mundi games are not, they're in a class of their own.
There's a lot of classic adventure elements in them, you find items, figure out how to combine said items to achieve the result you're after and thusly advance the storyline. Every now and then you're confronted with a hidden object scene, a fact that makes my eyes water and kills my inner child bit by bit. In a stroke of pure brilliance they've added an option to play an alternative game and that way bypass the hidden object scene entirely. What you're left with is an adventure game and occasional boardgame challenges, fantastic.
Rather uniquely they also tend to feature strong female protagonists that aren't constantly trying to assert the fact that they're female and strong, they just are. This is something that you'd be hard pressed to find in any other genre.
Finally, it works flawlessly in linux. As have all Artifex Mundi games I've tried so far.