When the game says "don't open the door" you should listen

[nintura]

So here I am, lv 17 Wyrmic, doing my thing, enjoying all the slaughtering that comes available with 3 breath weapons and bellow. When I enter dreadfell for the first time ever. (Ive only been playing for a week or so). I'm thinking, ok this isn't bad, the monsters are my level. Then I open a door. Now to be fair, all the other ones in other dungeons weren't that hard, cept the Frost Giant chieftan one, I had to kite awhile for that. But yeah, so I open the door.... BAM, 20 or 30 lv 30 mobs run out... Thank Bob for Teleport. It took me the better part of an hour, but I finally killed them all. Even that annoying skeletal halfling that loves to keep knocking me back...

[64legos]

Dreadfell's the first dungeon where you can find "Greater Vaults".

They're like regular vaults, only they're 30x more likey to kill you.

[Carvool]

Yeah, vaults can be nasty. I think it's a good idea to keep track of the location of vaults and what level you were when they were generated so you can come back maybe like 10 levels or so later. There's one particular nasty one that can appear in the Ruins of Kor'Pul that's just four high-level skeleton mages that start out with a range advantage. I'd imagine there have been plenty of budding characters out there that have lost to that one.

Of course you might not have to bother with waiting if you have some sort of method of vault scouting like Arcane Eye or Precognition. Then you'll pretty much know when you want to go in or not.

[Matanui3]

You should definitely open the top room in the Vor Armory.
It's a fun vault, I promise.

[Isotope-X]

Protip: He's kidding.

[0player]

Well, you get, like, 2 or 3 achievements for it!