Try. ni no kuni casino prizes. so far i have found a few tips. There are four games of chance. Platoon is more like 70% luck 30% skill. Slot Machine is a game of chance in the Tombstone Trail Casino. Tombstone Trail Casino is opened on the Tombstone Trail after learning the Travel spell. Lastly its the Platoon game, this is like 30% luck and 70% skill, you need to come up with a strategy to win. I guess, it's also far and awa the easiest casino game and can win you the most money PERIOD. . . By adjusting the amount of money you put in to each pull of the lever.