Originally posted by Zaflis:

Originally posted by blankitosonic:

Like any other dungeon : nope

Like any other dungeon they respawn after certain number of days. How many days exactly you ask? I don't remember but you can change that default number with some mods, i think ValheimPlus.

Ofc visiting the dungeon before it has respawned will probably reset the timer.

There is no timer in vanilla game , you clean the cave/dungeon/crypt and stay clean forever
I cant talk about mods because i didnt used yet