Kraken is a boss mob that currently spawns in the ocean biome. It was added in the "Vamos a la Playa" update. It drops a kind of leather (kraken skin) used for the diving suit and the super hammer. The kraken is able to climb onto bridges.
This one of the hardest mobs to kill in the game, along with the Lava Dragon.
When wearing a Diving Mask, the kraken moves at the same speed as you do. Because of this, you can lead it to the river with relatively low effort. Keep in mind that you can still get hit; if this happens, you should immediately move to land. Once the kraken is in the river, it cannot escape as easily. You can now hit it with a sword. Note that you will still need to move "up and down", similar to how you would kill a dragon. You will still get hit occasionally (most likely) so bring several bandages.
The kraken is easier to fight with a team. One very efficient and easy method to kill him is to build a three by three cube anywhere in the ocean perferably near the beach. This is more difficult in the recent versions, since krakens can now grief buildings; it is recommended to use reidite walls, and even then you may need a wrench (note that the kraken has 50 building damage, compared to the dragon's 90 building damage). You then fill in the right and left side with walls then you place 3 doors in the middle. Then you lure kraken inside and use a spear or pitchfork to close all 3 doors the kraken will then be efficiently trapped inside. Then you can easily kill it by swinging through the walls; but be careful not to open the doors.
In general, you only need 1 free inventory slot, as the game prioritizes kraken skin over fish. However, you need 2 inventory slots to get fish, and 3 to get scales.
|Forest||Rabbit · Wolf · Spider · Boar · Hawk|
|Winter||Penguin · Arctic Fox · Polar Bear · Baby Mammoth · Mammoth · Baby Dragon · Dragon|
|Ocean||GMO Piranha · Kraken|
|Lava Biome||Lava Monster · Baby Lava Dragon · Lava Dragon|
|Desert||Vulture · Sandworm|
|Other||Zombie · Vampire · Crab · King Crab|