Sorry man, I dont think it’s possible. It would have to cover only the prologue, anything past that is unadaptable. Only having the prologue is a disservice to the story, because thorfinn doesn’t understand what thors stood for yet, which is the whole point of the story. Get to the next arc and you will understand what I mean. Just giving the player an attack button would make it a Viking game, not Vinland saga. It makes me sad, because I love Vinland, but it would stand opposed to the meaning of the source material
That's not a bad point. And I don't disagree, but maybe setting it during the war with England would be a good time period. You'd have about ten years to play with. And the series dosnt cover every detail of that conflict so there's alot of room for artistic freedom.