Unfortunately, we can't guarantee that.
Even if RTG themselves are a legitimate supplier, we can't make any promises for the casinos offering RTG slots. Because RTG currently isn't a US license holder, they can't have their games on online casinos licensed and operating within the United States. Sadly, in the past, many online casinos offering RTG slots were scams and notorious for not paying the players, and this is something that can easily leave a stain on any supplier's name.
For safe and US-licensed places to play on, we got you covered. See our list of online casinos and take advantage of our ready-made filters, or make your own.