I played EOB a bloody lot, so probably yeah that must be it.
But I probably spent countless hours on The Fairy Tale - I know, it isn't a proper RPG, but it had many elements and of course a wonderful main theme that kept me glued to the screen walking for hours having NO idea of what I was supposed to do.
The most clueless - yet amazing - game ever
and when I was in high school a friend of mine gave me a version of that same game where you could summon a golden swan just pressing a key (I think it was "b") - preventing random encounters and so on.
Too bad I kept dying of starvation.