Animal Jam Classic Wiki
Animal Jam Classic Wiki
Not to be confused with the Cosmo's Tree House or Andrews Dungeon of Doom.

Cosmo Den

Cosmo's Den is a members-only land den.


On the inside, both floors have small cracks filled with flowing water. There are also built-in wooden shelves on the walls. There is a staircase made of leaves between floors. The wallpaper usually turns plant-themed. The flooring turns into carpets that are placed in various different sections of the den. There is a small stream flowing from upstairs to downstairs, which flows into a puddle at the corner with lilies and lily pads. Outside, there is a big field with trees.


The Cosmo's Den was initially released on December 19, 2013, in the Diamond Shop. It was most recently released on March 4, 2021, in the Diamond Shop and left on May 7, 2021.

Release History Details
OriginArrival DateDeparture Date
Diamond ShopDecember 19, 2013July 2016
Diamond ShopMarch 4, 2021May 7, 2021


  • This den is featured in the Meet Cosmo adventure and appears to be part of a giant tree.
  • The flooring is shown in rugs and mats that cover the ground, instead of one continuous floor. This is the first known den to have this feature.
  • During the Denstravaganza event, it only cost 3 diamonds.
  • The outside entrance is similar to the entrance to the Enchanted Hollow den.
  • Although it is much bigger, it only has one entrance, unlike the one in the adventure.


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Unique Patterns[]

Wall Patterns[]

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Floor Patterns[]

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