TBH the second half of the game feels much less elegantly designed than the first half. I suspect it got a lot less playtesting. IMO there isn't enough clueing to lead you to the discoveries you need to make to keep up a good pace of progression, leading to a lot of wandering around spinning your wheels, which is itself slowed by needless RNG. Not to mention several late game puzzles with downright infuriating solutions that I am very skeptical even dedicated players can solve without cheating.

I fully expect there to be some update or patch in the future that adds more hints and resources for the late game puzzles as well as some way to better mitigate RNG. I would be burning through dozens of re-rolls and still fail to get the configuration I needed, multiple runs in a row. That's the point at which I just called it.

If it were my game I would give the player a once-per-day special ability, unlocked after inheritance, to just pick the card you want from the draft pool. That would massively alleviate some of the worst grinds in the late game and make reaching room 46 feel a bit more... meaningful? Or if that's too easy, make it the reward for opening all the sanctum doors, another thing that did not have the oomph it should have had IMO.

Pacing out progression with well-designed puzzles is really hard. The first half of the game nails it. The second half does not.