almost 3 years ago - Dynamoon - Direct link
Kastrull is in fact Swedish and means a cooking pot (or it may be some other things too but this is what we intended). It is pronounced like this: https://forvo.com/word/kastrull/

As it appears in the game though, in the meaning of a submarine found on a multinational moon of the future, I think you have licence to pronounce it as you like ;)