Large, savage rats living in the wilderness are called skrekks. Mutated forms of the species are pseudorats, and the cursed people who are able to take the form of half-human, half-rat are wererats.
Also when Catriona Plague breaked out, the first to go were the cats and dogs, then the rats and finally the people. but this fact is known for small number of humans so there is no deratisation or something like that.
When Geralt run into Triss Merigold in Novigrad she has a contract to get rid of rats in warehouse of some merchant. Then with Keira Metz he have to destroy the rat holes with either bombs or Igni spell to receive 100 for each destroyed nest.
Depending on whether you set option "enemy upscaling" off or on, they can be the weakest or the strongest enemies in the game.
Associated quests Edit
- In The Witcher (PC) there is an optional secondary quest under name The Rat.
- In book series there is a gang which Ciri is member for time and they call them selves The Rats.
- Keira Metz has kind of phobia and its scared of them although she is obviously more powerful.
- There is a bug in The Witcher 3: Wild Hunt, where rats will sometimes grunt with a female voice when bumped into by the player. This can be noticed during the quest A Towerful of Mice.