Nice twist in terms of story lore. I was a bit confused where the story took place, and the clues are more or less subtly sprinkled in, with not too much exposition.

The main protagonist is a bit archetypal, similar to The Lies of Lock Lamora, a young masculin teen with a freakish tactical and strategic luck, who is also hyper-violent and clearly on the psychopathic spectrum, saved by a story plot-twist that explains why they are like that. But still needs to be redeemed in the next books IMHO.

Has a Cosmere , aka The Stormlight Archvive/Mistborn vibe in the greater powers that play a 1:1 worldwide game. Again, to be seen if relevant in the other two books.

Is rather similar, as pointed out by @kergoth@bookwyrm.social, to The First Law Trilogy by Joe Abercrombie.