Not trying to hijack, just too tempting to not add my faves to the list of ponderment. Adventure is my genre as well.
Sierra Games "Talkies" - They play on DosBox, but they were for 486:
Freddy Pharkas, Frontier Pharmacist
Quest for Glory IV: Shadows of Darkness
Gabriel Knight: Sins of the Fathers
King's Quest V: Absence Makes the Heart Go Yonder
King's Quest VI: Heir Today, Gone Tomorrow
Given a guess, I'm pretty sure Sierra non-talkies will work.
Playstation 1:
Blazing Dragons (Cool funny Point and Click Adventure, but for PS1 that Lucas fans would love.)
Hope springs eternal...