There is some top spoiler-hiding work going on in this thread, and I for one really appreciate it. In fact, it's actually enhancing my enjoyment of the game to know there is so much that I don't know… Thanks gents!
I'd like to put our something similar, in that this thread is making me really interested in this game. So much so that it has become one of only a handful of things that made me consider getting any sort of X-box since I moved to PS4.
I worry we might have oversold this one now, Ninchilla. 
Spoiler - click to showI'm going to need to look into what the point of the secret treasures are, besides achievements. The portal they unlock seems to appear before you get them all, and when you do get all 12 nothing changes. So… huh.
Spoiler - click to showThat's a thing then.
Oh. Oh well now. That's… deep. Well beyond what I even remotely could have ever discovered myself.
I'm constantly in awe of people who can work this stuff out.
FFS.
Fine I'll download the super clever game!
Sorry old man, Tunic is SOOOOO last week. We're all playing the new hip cool indie game now where you play a stoat that solves multidimensional word puzzles.
Stoatal War
And done. In the end, Spoiler - click to showI got all the fairies, and more than half of the special collectibles. The "good" ending was… fine?
It does have New Game+, but I don't know what (if anything) is different.
Had a decent run at this last night, it's still very good to play. I did the
Spoiler - click to show forest sanctuary, finished off the ruined atoll (which I'd been to before when I didn't know how to pray next to the big blocks so couldn't work out how to progress) and the frog sanctuary/library. The magic orb makes the whole world more interesting to explore again!
Very much enjoyed most of that, then went on to the
Spoiler - click to show quarry and ziggurat, which I haven't finished yet. The quarry is horrible. If I hadn't been playing with zero damage before, I definitely would have started there. Hateful. Still, the follow on is very enjoyable so far. Looking forward to the next playtime I get!
I was watching someone stream this last night, and something from very early in the game suddenly clicked and I have another secret treasure now.
I can't decide if I want to try and hunt down all the remaining upgrades…
I guess they're rewarding when you work them out? The giant gold plinth was the only one that was a pain for me.
Yeah, I googled the gold monolith…
As seen on my instagram, I've been learning the script. I can pretty reliably read stuff now, given a bit of time; writing it is much quicker.
How is paper like that even a thing.
I'm jealous, mainly because right at the point where I was going to try and translate the manual, I finished the game and was done. That's on me, but I'm still jealous!
How is paper like that even a thing.
…because I made it? 
Finally got around to trying this. I don't think it's for me. Lovely presentation and all but after an hour or so I'm just wandering around aimlessly. I've got a sword and a couple of health potions, killed a mini-boss and now got no idea what the hell I'm supposed to be doing. Without a map I'm not even really able to identify paths I might have missed, or remember how to get back to areas I've seen before.
I get why you all like it, but I don't think I have the patience.
Shame, but perfectly fair. If it fails the 30min test, no point trying to force enjoyment out of it.
Wait, there's a no fail mode to this Dark Souls x Zelda nightmare game I've stumbled into and you've all already played and forgotten about? Can't they just, you know, admit the game is too hard as it's intended to be played and, you know, not do that? Because I've just started and I'm already ready to quit.
I haven't got into this properly yet but I did go back to it and found it much more enjoyable with No Fail mode activated. There's no shame in engaging that if you want to focus on the puzzling.
It's not that the combat is hard, exactly, it's just annoying. Being forced back to a checkpoint every few screens really harms the flow of the game.
I just don't get that if you're going to have combat in your action/adventure/puzzle game, make it not evil. I mean, is that difficult? Zelda's done it since the 80s. I don't want to basically cheat at the game, I want the game to have combat that isn't laughable Souls trash. What fun is a game with combat if it means nothing?
Plus, yeah, now I'm stuck. Going round and round and can't figure out where to go. The problem is that the game loves hiding what should be obvious and necessary paths behind other things and I'm sure I've walked by it 500 times. It's just poor design in so many ways and I don't think I'm interested any more after so much promise at the beginning.
Yep, completely agree with all of that, it's why I've bounced off the game. I think there's something really solid at the heart of all this (and the fact others have enjoyed it greatly suggests that is the case) but the execution isn't really there for me.
It also suffers, in my opinion, for being overly goddamned long. I've sunk 20-something hours into it, by which time I'd have been perfectly happy to see the credits. But there's just so much stuff I still haven't seen, and getting to certain areas is a pain even with teleporter access unlocked, and it even hides stuff about the controls behind a fake alphabet and collectibles.
As a big fake alphabet nerd, that was not a problem for me. I loved it start to finish, though I did switch on no-fail mode
As for outstaying it's welcome, I'm sure it didn't take anything like 20 hours to hit the credits…