Galkn has been inconsistent in it's intensity across the run unfortunately. Runs have been anywhere from middling to very energetic. I've enjoyed my positive runs though!
This is the first house to truly show off the scope these new tents can portray. It's not quite soundstage-level, but there are a number of larger setpieces that would be tough to pull off in smaller venues. You can tell that the exceedingly positive reactions to originals like Dead Man's Pier have influenced this year's event. Lots of houses share that open-air format where you can see deep into later or earlier portions of the same house, including Galkn. It's an element that felt missing in last year's new tent house Goblin's Feast; which itself felt too cramped to portray the towering fantasy kingdom it was going for.
Most sets are well-detailed. I really like one of the opening scenes where you're in a ditch with wolfs and bears above you on snowy cliffs jutting out from interesting angles. Solid use of SIF and darkness to hide plainer rooms like the bridge or forests. When the energy is right, the actors elevate a number of these slower, less detailed scenes. When the energy isn't there though, a lot of it is unfortunately forgettable.
The intro room spiel is too quiet and too long. I think it describes the backstory of the main villain, and I've never registered more than a few words before I'm entering the next room. If a house needs backstory and lore, it should happen briefly outside of the house on the facade or in the queue. Dolls and WWE understood this, but Galkn didn't get the memo. You've got maybe a sentence, maybe two if you're lucky, to get your idea across. This spiel lingers way too long.
The ending is very cool, if a little out there without context. I like the dynamics of emphasizing the scale of the final outdoor room and the finale monster with the tiniest church corridor between them. That works really well!
The finale monster itself is an impressive setpiece. The sound design on the creature's vocalizations is unnerving but cool, like the kind of roar a new Kaiju would give off before fighting Godzilla. And the puppeteering work is great and very fluid, a necessary component of a large monster like this; lest the monster become a Madame Tussauds figure like the ST3 Mind Flayer a few years back.
I agree with other's here that the Belly of the Beast meat hallway is one of the best scenes in the house. Very similar to the ending scene of Wicked Growth imo, and similarly well-executed.
It's interesting that with as much as this house has to offer, it doesn't really excite me much at all. It's totally servicable, and has some really cool rooms, but most of it feels pretty samey and been there, done that; or like a less good version of Blood Moon: Dark Offerings. Part of that is just that I've been going to the event for almost a decade. There's only so many times I can see the same props, rooms, and ideas reused and it maintain it's novelty. But if this was someone's first year? This is a definite solid house.