Although $100,000 may appear to be a large sum, there are other factors to consider. My first question is if you are the founder. Do you have developers that will create the software and websites for you? These are quite important for your casino, if you don't have any, you will spend more than that, believe me, because you'll pay them to create them for you, and you may even conduct a bounty test after the design to check for loopholes and beta testers. You can't expect a casino gambling with money to run smoothly at the start, you'll have to conduct a lot of cross examination.

You mentioned promotions, which are another way to entice customers and players to your casino, but using that budget wouldn't be sufficient because, for example, if you promised a player a 200% or 300% deposit and they all made deposits totalling $300k, how do you intend to raise the remaining funds? Remember that it is not all the players will lose if indeed your casino is fair, you would go bankrupt and might even be forced to close down. I advise you to secure more funds before launching your gaming business.