You can always download it and then immediately uninstall the EGS app if you hate it but it's worth it for this game
It's got gorgeous art and incredible music and surreal writing and a cast with plenty of interesting queer characters and you can romance a bat and get a third eye installed and assassinate a sun
Is playing Sunless Seas before this necessary?
nope, there's some callbacks but no really necessary worldbuilding that isn't contained within skies itself
Not really? But at the same time the entire game is kind of one big spoiler for Seas