I’m not a lawyer but I don’t think it would be too much of a stretch to apply US gambling laws to pay-to-win games and loot boxes. It wouldn’t surprise me if these games have their own Black Friday [1] soon. Disclaimer: I’m not advocating for this and actually would like to see more relaxed online gaming regulations!

1: https://www.pokernews.com/news/2016/04/black-friday-five-yea...