Back in Cataclysm, they put the Halls of Origination in as one of the dungeons that released with the expansion. A 7-boss instance, it was a way longer dungeon than had come out since Vanilla. The idea was to recapture that idea of the giant old dungeons from 2004 like Blackrock Depths or Blackrock Spire (which used to be a single large instance). The thing is, the way dungeons actually were used by players by then had changed, and while we weren't really racing to finish them against an actual timer, as we can now with Mythic Plus, players didn't really want to commit an entire evening to clearing out a massive mega-dungeon, so instead, people pretty quickly turned to just doing the three (I think it was three) mandatory bosses and getting the currency rewards for completing a heroic dungeon (mythic dungeons wouldn't be a thing until Warlords of Draenor).
But in Legion, even as it introduced Mythic Plus, which requires you to get through the dungeon in a limited time, they also gave us The Return to Karazhan, the first official Megadungeon. RtK actually recreated the beloved Karazhan raid, though it redesigned some of the early fights and then kind of replaced the second half of it. We would then get a single megadungeon each expansion, with Operation Mechagon in BFA, Tazavesh the Veiled Market in Shadowlands, and then Dawn of the Infinite in Dragonflight. War Within, though, didn't really have a megadungeon, just adding a conventional dungeon with each major patch.
But War Within gave us Delves, which are sort of like dungeons, or a kind of different interpretation of what a dungeon could be.
And with the Labyrinth of Kindo'jan, we have our first Megadelve.
You'll do a main story quest to have your first foray into it. Like other delves, you choose from tier 1 to tier 11 difficulties, with comparable rewards. The map, as far as I can tell, doesn't change, but you'll encounter different scenarios in the various chambers. There are four wings based on the four Amani Loa, each of which is essentially a delve's worth of content to go through, though these are also divided into separate chambers. Clearing a chamber will unlock further chambers that you can go into, with a special challenge in each of them. For example, one area might have the spirit of an ancient Amani warlord who wants you to find the bones of his beloved raptor, and then fight the spirit of the raptor to tame it and bring it back to him. A wing will typically have two of these varied scenarios followed by a boss fight.
If you clear the entire labyrinth (which is a great way to get like, half the new special delver's journey for it finished) you'll unlock a chamber with a new nemesis boss, Kindo'jan, which I have not been able to beat yet. (I wonder if I should try it on a lower tier and see if that counts for the achievement. At this point in the season, I'm running on tier 11 for every delve). Like any nemesis, Kindo'jan is hard, with a mechanic that auto-kills you if you get hit by three clearly avoidable abilities during the fight. There are also some instant-death mechanics like winds that can blow you off the platform if you don't find the narrow safe spots.
Still, you can get a lot of rewards and a lot of vault progress with a full clear - you'll get three bountiful chests (I think that the labyrinth is going to always be bountiful) and a bunch of other rewards. There are also new curios along with new upgrades to them (they now go up to 5 levels) and a number of rewards you can find as you progress the Journey for it and unlock various Loa-barred chambers that contain things like non-consumed glove enchants.
It does feel like HP pools are a bit higher - the bosses seemed to take longer to take down than the ones in existing delves, but maybe that's just unfamiliarity. On my main, I'm a tank, so I have Valeera go DPS, and it really varies a lot whether she takes things down near-instantly or slowly chips away at them.
I don't know if Kindo'jan has any power-progression rewards, so it felt a little painful to leave an otherwise fully cleared labyrinth with him still up, but I just didn't have the patience to keep plugging away at it.
There's a new currency you can earn that will eventually allow you to purchase myth-level gear, though it appears you only get one per week, and need three to buy the piece. That's not that bad, given that I've been pretty satisfied with Hero-level gear.
Anyway, we'll have to see how satisfying it is to go back into the same area over and over - I'm certainly going to be running it a fair amount for now, but I imagine I'll need the variety of the other delves as the Labyrinth stops being as novel.
Still, it's a good choice of location for this first megadelve - an ancient troll ruin makes for a great old-school dungeon crawl.
