Games like Haunted Halls: Green Hills Sanitarium Collector's Edition

If you finished Haunted Halls: Green Hills Sanitarium Collector's Edition, the closest matches are The Room 4: Old Sins, Rusty Lake: Roots, Quern: Undying Thoughts, Rusty Lake Hotel and Don't Knock Twice. All 7 share its adventure genre and are ranked by how closely their themes and modes overlap.