You are getting a lot of good tips but after reading your questions and answer it looks like that you are a coder but you don't have any clue about gambling and online casinos. IMO you would need a partner who is familiar with gambling and casino games. no offense intended and good luck
Yeah not much of knowledge about the working of the casinos, yes. But the site is functional. I just had that doubt about the edge.
I would tell you to take the game you have right now as a learning experience = learning by doing
start with moneypot and start learning the gaming business.
are you a coder by business? and how did you get the hi low idea?
I just code in my free time. But am very fluent in PHP, Python, and a few other languages. I play on PrimeDice every now and then, so I thought why not code a casino myself. That's how I got the idea