The movie has some New Vegas and Fallout 3 vibe. You got the hero, the companions, Rivet City on a ship, some revenge pot on both the hero and the villain side. The villain got mad because the younger guy who got killed was his brother, maybe? I'm not sure, but it would make sense. That's why he cannot let it go...
The character is often annoying, but at the end he almost starting to make sense.
I liked the movie. You should watch it, if you are into the post apocalyptic genre.
What's wrong with it though?
The main character is not that likable. Characters actions often make no sense, or they speak nonsense. Maybe the acting is choppy for a main character. He doesn't appreciate his companion either, even though his companion is ready to die for him.
The gang is strange too, they are not smart like Negan's group, they so things the dumb and unnecessary violent way.
The ship-town's leader is the smartest in the whole movie, probably. He was just made a mistake at the end. New peoples showed up, yet he didn't tripled the security forces of the ship.
This movie could be a real classic with a better script, better main character and better ending.
Don't get me wrong, it's an alright movie, has it's moments, it just could be way better. Let's say this movie is a missed opportunity.