Editorial policy: how these pages are researched and kept current

Every page on National Casino Slots is written by the site’s editorial desk from published primary sources: the game studio’s own material, the rules screen of the online game itself, state gaming regulators and the laws they enforce. We do not publish a number we cannot trace to one of those sources, and where a figure varies by state, casino or game version, the page says so instead of picking one.

Where our facts come from

We rank sources in a fixed order and use the highest one available for each claim.

1. State regulators and statutes for anything legal: which states allow online casino gaming, minimum ages, location rules, self-exclusion programs and payout minimums.
2. The game studio for how a game works: press releases, product pages and game sheets from IGT, Aristocrat, Light & Wonder and the other manufacturers.
3. The game’s own help and paytable screen at a regulated US online casino, which is where the published return-to-player (RTP) figure for that version usually appears.
4. Trade press (for example SBC Americas, CDC Gaming Reports and iGaming Business) to date a launch or confirm a deal, never as the only source for a rule or a payout figure.

Each page lists the sources it relied on at the foot of the article, so you can check the claim yourself.

How we handle RTP, jackpots and other numbers

RTP is the figure readers ask about most and the one most often misquoted. Our rules:

• We quote an RTP only when the studio or the game’s own rules screen publishes it, and we name the version it applies to.
• When a game ships with several RTP settings, we give the range and explain that the casino picks the setting.
• We never present an online RTP as if it applied to the machine on a casino floor. Land-based payback is set by each casino from options the manufacturer offers, within limits set by each state, and is not published per machine.
• Jackpot wins are reported only with a date, an amount and a source, and always framed as rare events.

Keeping pages current

Online game libraries change: a casino adds or drops a title, a studio releases a new version, a state passes a new law. Each page shows the date it was last checked. Facts that can change are written with a date (“as of 2026”) or a prompt to check the current rules in the casino’s lobby. When a law, a launch or a game rule changes, the affected pages are corrected and re-dated.

Independence and the sister sites we link to

National Casino Slots is not owned or run by any casino, game studio or casino brand, and it does not take payment for coverage. It carries no affiliate links, sign-up buttons or bonus offers.

The site belongs to a network of independent guide websites run by the same publisher. Where another site in that network has the best guide to a question this site deliberately leaves alone, such as which online casinos operate in a given state or how bonus terms work, we link to it in the body of the page, as further reading. Those links are editorial, not paid, and the page around them still cites outside primary sources for its facts. We tell you this here so the relationship is never hidden.

What we will not publish

• Claims that a game is “due”, “hot” or beatable. Every spin is independent and the house edge is built into the game.
• Fake reviews, invented testers or personal win stories.
• Content aimed at anyone under 21, or at anyone outside a state where real-money online play is legal.
• Instructions for getting around location checks, self-exclusion or age verification.