Manga that have an official release in spanish in Spain (mangas not anymore on stock and licenses not publised yet are include too) Manga Publishers in Spain active today (august 2023): Panini manga, Norma Editorial, Ivrea...
These "high stakes games" manga are PVP (player versus player). The game rules dictate that one or more players are their enemy, thus pitting them against each other. Sorted alphabetically. See my "Best to Worst High Stakes...