I've stalled this for now, because I'm currently not interested in that kind of genre. It was a decent read so far.
The setting is quite dark. Not in an apocalyptic way, though. Instead it's at the character-level. The "players" here all have their own goals and most of them are very shady. What you can basically say is: The people who look shady, definitely are and those who look innocent will be revealed to be the most twisted soon.
This is also what generates the tension in this story. You never know when people show their true self and betray each other or the MC. The same btw goes for the MC. He is just as ruthless as them (which I like, because a wannabe hero won't fit into this setting at all)