Well, to understand 'Prey on the Master' manhwa, first, familiarize yourself with the setting and the main characters. Also, notice the themes and the way the story progresses. It'll all come together as you keep reading.
Some similar characters could be found in other survival-themed manhwas. For example, in 'Survival Game', there are characters with similar traits of determination and resourcefulness.
Well, it requires a deep understanding of the manga's plot and characters. The creators need to stick to the core elements and not stray too far from the original story.
It's a decent adaptation. The anime of 'gosu the master' retains the key elements of the manhwa, but there are some changes for better visual presentation.
The length of the story in Prey 2 can be quite subjective. It could range from a few hours of intense gameplay to a more immersive experience that lasts longer, depending on your playstyle and how much you explore.