Games like Tansaki Katamichi no Uchuu Tansaku

If you finished Tansaki Katamichi no Uchuu Tansaku, the closest matches are Space Pilgrim Episode I: Alpha Centauri, Space Pilgrim Episode III: Delta Pavonis, Space Pilgrim Episode II: Epsilon Indi, CAT Interstellar and Wave_Machine. All 6 share its adventure genre and are ranked by how closely their themes and modes overlap.