Games like Neverwinter Nights: Hordes of the Underdark

If you finished Neverwinter Nights: Hordes of the Underdark, the closest matches are Baldur's Gate II: Shadows of Amn, Pillars of Eternity, Remnant: From the Ashes, Icewind Dale and Neverwinter Nights 2. All 9 share its adventure genre and are ranked by how closely their themes and modes overlap.