Games like 星海乐章 | GALIX: NewHorizons | 星の旅：億万年の絆

Looking for games like 星海乐章 | GALIX: NewHorizons | 星の旅：億万年の絆? Here are top open world hack and slash recommendations with a fantasy, post-apocalyptic and science fiction focus, selected from player-similarity data — start with undefined.