However, do not be discouraged because there are three land-based casinos in this state you can visit. That is due to the gambling legislation in Texas and the main federal laws. There is no need for a spoiler alert before we say that it is next to impossible to find San Antonio casinos. We have not skipped the information about the online casinos in the Lone Star State. You can also find several poker clubs and racetracks with details on the bets and games you can play there. In this article, we will give you details about the closest to San Antonio, TX, licensed casinos. Looking for a San Antonio casino might be a challenge.