I have built a roulette bot for my client. Please take a look on this: https://www.freelancer.com/jobs/software-development/Automated-Roulette-bot/
Please take a look on the UI of the bot on my portfolio: https://www.freelancer.com/u/haovo.html - 5Dimes Vegas Roulette BOT.
I would like to discuss with you on the roulette game in more detail. Looking forward your response as soon as possible.
Thanks,
Hao