A true completionist's trial.
Casual players will be fine running through the story and a good chunk of content but people who 100% will have their mental fortitude greatly tested.
All 777 treasures are RNG, finding each one does not remove them from the loot pool because you can find duplicates. Every time you pick up a treasure you can only see it's silhouette and type so you have to keep a spreadsheet on hand of every treasure you are still missing. You can only carry up to about 10 treasures per outing before returning to base. Your monsters can potentially drop their treasure every tick of damage requiring it to be picked back up. The worst RNG I have ever seen with even more handicaps to make it worse.
Furthermore there's plenty of annoying sidequests that are ALSO RNG reliant.
THEN even after you manage to do everything you still have to hit gold cap which is one of the most tedious mundane grinds I have ever endured. Gold Golems, a lot of them, and a lot of save & loading.
I'd rather 100% a 200 hour long JRPG WITH MISSABLES than the 90 something hours I spent to 100% this collectathon.
Good game.

Super chill game. Has all of Dragon Quest's charm but you're basically just hunting for treasure. Very nostalgic for veteran DQ players as all treasture items are from past DQ games.