Games like Valkyrie no Bouken: Toki no Kagi Densetsu

If you finished Valkyrie no Bouken: Toki no Kagi Densetsu, the closest matches are Borderlands 3, GreedFall, Jade Empire, Forgotton Anne and Torchlight III. All 6 share its adventure genre and are ranked by how closely their themes and modes overlap.