None of the old Natsume Harvest Moon games allowed same-sex marriage or romance. The more recent Story of Seasons games do: the Friends of Mineral Town remake (2019/2020) does, and pioneers of olive town does.
Both are more recent than the BioWare examples, and of course more recent than Stardew Valley, which is more in line with the Harvest Moon genre.
Both are more recent than the BioWare examples, and of course more recent than Stardew Valley, which is more in line with the Harvest Moon genre.