Also lesser known because due to a trademark dispute, all sequels and the VGA remakes of the series were renamed to Quest for Glory.
I deeply enjoyed that whole series in my childhood, even despite how weird the voxel-based art in the fifth game was. IIRC, I learned the "razzle dazzle root beer" cheat in Hero's Quest before I learned the Konami code, and, with the help of my dad, even learned how to hex edit my save games in Quest for Glory 2.