even when there is no world to explore, the world building in the trails series is incredible. My favorites things about this game are how the dungeon crawling is related to kevin, kevin itself and the doors. I just can't praise the doors enough. Moon doors 3 and 4, Star doors 8, 14, 15 are peak trails fiction.
The only bad thing about this game is the shit ton of reused assets from the other games and some useless doors, but its not that bad.