Class

Kraken Classification

Class 1
The Krakens in Class 1 happen randomly during flight and don't do much.

Class 2
The Krakens in Class 2 mess with the game a little bit (such as changing a kerbal's name) but doesn't do much else.

Class 3
These krakens are known to cause issues to saves.

Class 4
These Krakens can mess with the Tech Tree in Science Mode.

Class 5
These Krakens are super dangerous, they can mess with game's features and corrupt files

Class 6
These Krakens can spread between saves via a broken game

Class 7
These Krakens can make the game totally unplayable.

Class Vaporizer
These Krakens can modify the game so badly that it might not even boot.