You get to choose two paths, each introducing new events and quests. The dangerous route has a timer, five days i think and it introduces the player more into the plot of the story. Also it shows more in detail how the master race known as pigmen operate and what is their culture. It is not hard at all so don't let the word "dangerous" influence your decision.Also is there any point of going to dangerous route in prologue, is it like high risk high reward. If not i dont see a point, might go easier route then