I wanted to share this roulette tip I found on reddit as it greatly helped me with this achievement. In the Octagonia casino VIP area there is a 200 token roulette table. A redditor discovered a pattern on that table that can be used to increase your chances of hitting a jackpot. I used this method and hit a roulette jackpot within about 30 minutes of trying. Other commenters on the reddit thread reported success using this method too. Hitting the roulette jackpot through this method will likely net you 6 of the 10 required casino accolades to get this achievement. You'll get the 3 token based accolades as the jackpot is worth one million tokens, you'll likely get two of the three "Play roulette x number of times" accolades" and another accolade for actually hitting the jackpot. You can get the remaining 4 relatively easily if you still need them by repeatedly playing games of slots and poker with your newly won tokens. Since you'll only need 4 you can stop at the first two "Play x number of times" accolades for those games and get the accolades pretty quickly.
To use this method place a 200 token bet on the following numbers for each spin...
1, 2, 3, 5, 9, 12, 14, 16, 19, 21, 22, 23, 29, 31, 32, and 34
This will cost you 3200 tokens per spin so having a decent amount of tokens built up is needed to use this method. I won more spins than I lost doing this and each win was worth a little more than 7000 tokens but more importantly, I hit the Jackpot after playing for about 30 minutes. Hope this helps you guys as much as it helped me!
Credit to redditor u/theultimatekyle
Link to reddit post -
https://www.reddit.com/r/dragonquest/comments/9eti6j/possibl...