Old forest (wtf layout)

[lthannyl]

so I'm making a new brawler, lv 14 and im entering the old forest since ive never everything else, the first few floors were what you would expect, however, floor 3 is really - up.

the floor is 70% comprised of a castle in the middle of the level, there are only 3 doors in the front of it, and every single enemy is insanely high level (a bunch of lv 24 minutaurs and lv 35 trolls and an elemental troll).

http://imgur.com/eJaBEVy (pic of the floor)

what the - is this? surprisingly i havent died yet and i've slowly but surely made some progress on it, but is this a glitch or something?

[ZyZ]

It is a 'big castle' vault. More exp and gear for you

[Marson]

If you see a message along the lines of, "Are you sure you want to open this door?", make sure you are really sure.
Of course you have to open a bunch of them (and maybe die) to recognize whether you really should in the future.

[Doctornull]

As Marson says, you'll learn with experience, where "experience" = probably dying several times.

[lthannyl]

no but it's not like i opened some chest or grave and a message appeared, i just went down to the next level as usual, i'm just lucky there aren't any uniques or rares here so far, but the level change is huge from 1 level to the next.

[FruitAndGarbage]

This particular vault, unlike most of them, spawns some of its high-level enemies outside the vault itself. Specifically in the bridge area. Once you kill them or escape, you can clear the rest of the floor as normal, but anything inside the castle (which will prompt a message on opening the door) will be of a similar level to the minotaurs and trolls you fought.

[Razakai]

I like this vault, but the mobs spawning outside can really screw you over. Last time I encountered it there was a pair of Patchwork Trolls, which thanks to their Rush and incredible speed killed my Wyrmic very quickly.

[Scol]

Also, check for diggable walls there - they can let you enter secret rooms with shinies.