Look no further than
Dracula 3: The Path of the Dragon (2008) (part of the game is fairly easy, but boy are you going to have fun after entering the underground) - if you like 'dead serious' AGs, or
Woodruff and the Schnibble of Azimuth / The Bizarre Adventures of Woodruff and the Schnibble (1994) if you're in for a wacky cartoony stuff (Woodruff plays nice on any modern OS with
ScummVM).