Games like Ore no Imouto ga Konna ni Kawaii Wake ga Nai Portable ga Tsuzuku Wake ga Nai

If you finished Ore no Imouto ga Konna ni Kawaii Wake ga Nai Portable ga Tsuzuku Wake ga Nai, the closest matches are Borderlands 3, Forgotton Anne, Pikuniku, The Eden of Grisaia and Saya no Uta. All 6 share its adventure genre and are ranked by how closely their themes and modes overlap.