For those who don't know, King's Quest is a long running series from Sierra. Back in the good old days of 16 colours, this game combined the best possible graphics, fantastic landscapes, puzzles, and great stories. In fact, I don't think I enjoyed many adventure games more than King's Quest V. (Then again I stopped buying games after that.)
There's a good overview of the King's Quest series on everybody's favourite resource. There's a quick overview & screenshots of each of the KQ titles on vintage-sierra.com. There's also freeware VGA remakes of KQ1 and KQ2 availabe from ADG Interactive.
Enough background information... onto the game in question.
The Silver Lining is a 3D adventure game with breathtaking scenery and superbly animated characters. It is a fan-made game so it should combine, refine, and outshine the qualities of the original King's Quest titles. The visuals are stunning and if the gameplay is half as good, this will be an unmissable piece of freeware.
The bad news, it's Windows only. And my laptop is too crap to run it.
I did try to talk them into open sourcing the engine a while back, but it fell on deaf ears. That is, "We don't want people to steal or ruin our game!" deaf ears. Ignorance is bliss.