Dungeons?

So I just finished the sewer dungeons, and was wondering if there was a way to do them again? Thanks!

 

You can get another key by killing a key guardian for that specific dungeon (spawns randomly in the emerald trail/nivla woods area)
If you give the key to the key collector at the dungeon, you can enter and do it again (if there's a dungeon bomb on your world you don't need a key to enter)

 

alright, thanks a ton!

 

Get a key from a guardian they spawn near the dungeon

 

They don't only spawn near the dungeon, they can be found in several areas that are the same level as the dungeon.

Please see here for a semi-complete list of key guardian spawns (they should be accurate, hopefully)