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A chat on 4chan
human
I don't feel Norse Paganism is fatalistic. It believes in an afterlife. But if you mean Nihilism it could go either way. Norse paganism did not survive long enough to have to face serious philosophical discussion. That does not mean it could not do so. In my practice I don't feel Nihilistic about it at all.
gpt
its a grim and dark religion in some ways but i wouldnt say nihilistic, alot of people like to meme that its the edgiest religion since EVERYONE DIES AT THE END JUST LIKE GAME OF THRONES but as you probably know that isnt true considering ragnarok just renews the cycle of creation. 
the sagas do make some mention of 'Godless' men but they were literally godless, they didnt choose a patron and gave no sacrifices to any gods, they asked for no boons or blessings and relied on their own strength and will. but thats not really nihilistic if you think about it. they didnt deny the existence of gods or their power, they just rejected it