No you probably cannot win. Alabama law is different than Florida so you should repost this question on an Alabama section. Alabama hasn't knowingly allowed an illegal operation if the State Attorney is suing the casino to have it shut down. Furthermore, even if you could prove that you spent money at the casino and lost it, it wouldn't necessarily entitle you to a refund. Was the illegality of the casino the reason you lost the money? Or was the money lost because it was gambled? In any case, while I suggest you seek advice from an Alabama section of avvo.com, you probably cannot recoup your losses from the casino.
This is not to be considered legal advice nor does an attorney-client relationship exist.
Both Alabama and the Creek Indian Tribe have sovereign immunity from lawsuits. Forget it.
This response does not create an attorney-client relationship. Unless you are already a client of the Mallory Law Group, pursuant to an executed employment agreement, you should not use, interpret, or rely on this response as legal advice or opinion. Do not act on any information in this response without seeking legal advice. Earl K. Mallory firstname.lastname@example.org (561)743-3708.