The King's Quest game from 2015 started out excellent with some great puzzles and felt like a modern King's Quest. Unfortunately the later chapters were much lighter in terms of puzzles.
For Quest of Glory, I'd recommend Hero U: Rogue to Redemption from the Coles, it has a similar feeling and is a load of fun. For me it's the best quest for glory clone since (better than Mage Initiation and Heroine's Quest).
There's been other games by Sierra alumni but they just don't have the same level of polish.
Oh yes, they've also done another game that's very much in the spirit of the old King's Quest. Order of the Thorne. The lead developer has chronic health problems unfortunately so that slows development by a lot. He has a patreon account to sponsor his development.
For Quest of Glory, I'd recommend Hero U: Rogue to Redemption from the Coles, it has a similar feeling and is a load of fun. For me it's the best quest for glory clone since (better than Mage Initiation and Heroine's Quest).
There's been other games by Sierra alumni but they just don't have the same level of polish.