Terms and Conditions

These terms and conditions set out the rules for using USA Online Casinos at dunesciences.com. They explain what this site is, what it is not, how our rankings and listings are funded, and what you are responsible for when you act on information published here. By browsing the site you accept them. If you disagree with any part, the right response is to stop using the site.

Last reviewed: Sep 25, 2026. Editorial responsibility: Evan Reynolds.

Who may use this site

USA Online Casinos is intended for adults in the United States who are researching new online casinos and comparing their terms. Access is limited to people who are at least 21 years old, or the legal minimum gambling age in their state where that age is higher. We do not knowingly provide information or promotional links to anyone under that age.

Legal online casino gambling in the US is regulated state by state, not by a single national authority. A handful of states license real-money online casino play; others permit only sports betting, lottery products or nothing at all; some allow sweepstakes-style social casinos that use virtual currencies rather than direct cash wagers. Whether any operator listed here is available to you depends on where you are physically located when you play, and on that operator's own licensing and account rules.

You are responsible for confirming that online casino play is lawful in your state before you register or deposit. We publish general guidance, but we cannot give legal advice and nothing on this site should be read as a confirmation that a particular site is authorized to serve you.

What this site does — and what it does not do

• We publish research. Reviews, comparisons and guides are based on publicly available information, operator-published terms and verified casino sources.
• We do not operate a casino. USA Online Casinos takes no deposits, holds no player funds, accepts no wagers and issues no bonuses.
• We are not a party to your account. Your contract is with the operator you register with. Their terms, not ours, govern your balance, bonuses and withdrawals.
• We cannot resolve disputes. Complaints about a locked account, a declined withdrawal or a voided bonus must go through the operator's complaints procedure and, where applicable, its state regulator.
• We do not guarantee outcomes. No listing here implies that a site is completely safe, that a withdrawal will be paid, or that you will win anything.

How we are paid, and what that does not buy

USA Online Casinos earns revenue through affiliate arrangements. If you follow a link from this site to an operator and open an account, we may receive a commission from that operator. You pay nothing extra, and the offer you see is the offer the operator publishes.

Commercial relationships do not decide rankings. Editorial ratings on this site are assigned by our own review process and cannot be purchased, upgraded or removed by an advertiser. An operator can be a commercial partner and still carry a low rating, a documented limitation or a warning in its write-up — and several do. Where we have no commercial relationship with a site we cover, that does not raise or lower its score either.

Our ratings are editorial opinions. They are not customer-review scores, not regulator assessments and not a measure of your likely results.

How listings and ratings are produced

The order of the ranked operators on our pages comes from a consistent review method applied to each brand:

1. Licensing and legal standing — what the operator states about its authorization, which US states it says it serves, and whether that is consistent with publicly available regulatory information.
2. Bonus terms in full — not the headline percentage, but wagering requirements, maximum bonus bet caps, expiry dates, game weighting and cashout limits.
3. Banking — advertised deposit and withdrawal methods for US customers, minimum deposit and withdrawal amounts, stated processing times, withdrawal limits and fees.
4. Verification practice — what KYC and identity documents the operator says it requires, and whether source-of-funds checks are described.
5. Games and software — the breadth of slots, table games, live dealer rooms and jackpot titles, and the named software providers behind them.
6. Support and player tools — contact channels, and the availability of deposit limits, loss limits, time-outs and self-exclusion.

We research and verify. We do not claim to have deposited, played or withdrawn at any operator, and we do not present advertised payout speeds as tested results. Where a claim is unconfirmed, we say so. You can see the full comparison on our page of online casinos reviewed and compared for US players.

Offer terms are the operator's, not ours

Every promotion shown on this site is reproduced from what the operator advertises at the time of review, and every one is subject to that operator's own terms, eligibility rules and state availability. Offers change without notice, and a bonus may be withdrawn or restricted in your state. Always read the promotion page before you opt in.

Three examples of how the headline figure and the real conditions differ:

Raging Bull — 410% up to $10,000 + 50 Free Spins

This is the largest headline match on our list and the reason it leads the rankings: the stated maximum is unusually high for a US-facing new-player offer, and free spins are bundled alongside the match rather than sold as a separate promotion. The practical point for readers is that a 410% match is a bonus balance, not cash. To convert it you must meet the operator's wagering requirement, and large percentage matches are typically paired with high playthrough multiples, maximum bet caps while the bonus is active, and a limit on how much of the winnings can be withdrawn. The $10,000 ceiling is only reachable with a very large deposit, which most players will never make. Limitation: the size of the offer is exactly what makes the attached conditions demanding, and the terms deserve a careful read before you opt in.

Magician Bet — 101% No Wagering

The reason this sits second is the "no wagering" claim rather than the size of the match. If the operator honors it as described, bonus funds or their proceeds are not locked behind a playthrough multiple, which removes the single biggest cause of bonus disputes. A modest 101% with no wagering can be worth more in practice than a headline 400% with heavy conditions. Limitation: no-wagering offers usually compensate elsewhere — through a low maximum bonus amount, a cap on winnings, a short expiry window or restricted eligible games. Check which of those applies before you assume the bonus is unconditional.

Slots of Vegas — 375% Bonus + 50 Free Spins on Cash Chaser

This one earns its place because the free spins are tied to a named title rather than an unspecified pool, which makes the value easier to assess: you know which game the spins run on and can check its RTP and volatility before claiming. Limitation: game-specific spins are also restrictive. If that title does not suit you, the spins portion has little value, and spin winnings on offers of this type commonly carry their own wagering requirement and a separate cap on what can be cashed out.

Comparing the headline offers

Note on the Amazon Jackpots listing: it is a $20 purchase, not a giveaway. We do not describe an offer as free where money must be spent, deposited or risked to qualify.

Money, payments and why we publish no guaranteed timings

Deposits, withdrawals and any fees are handled entirely by the operator and its payment processors. Nothing is paid to or by USA Online Casinos. Using this site costs you nothing; the cost of taking part sits with the casino you choose — a minimum deposit to open play, and in some cases a minimum purchase to unlock a promotion.

Methods commonly offered to US players include debit cards, credit cards (which some card issuers decline for gambling), ACH bank transfers, wire transfers, e-wallets where the operator supports them, prepaid vouchers and, at some sites, cryptocurrency. PayPal availability is limited and generally tied to state-licensed operators, so treat it as something to confirm at signup rather than assume. Payout options are often narrower than deposit options, and an operator may require withdrawals to return to the method you deposited with.

Timings we quote are the operator's advertised figures, not measured results. Real withdrawal times depend on identity verification, weekends and banking cut-offs, and on internal review periods that some casinos apply before the first payout. Minimum withdrawal amounts, weekly or monthly withdrawal limits and processing fees vary by method and by operator. Check all four before you deposit, because they are much harder to argue about afterwards.

Expect KYC. Licensed operators must verify identity, and typically ask for photo ID, proof of address and sometimes proof of the payment instrument. Larger or unusual transactions can trigger source-of-funds checks. Submitting documents early usually shortens the first withdrawal rather than lengthening it.

What you can expect to find at the casinos we list

Our coverage spans the categories US players actually encounter, and these terms apply to how we describe all of them:

• Slots — from low-volatility titles with frequent small returns to high-volatility games with long dry spells. Where we mention RTP or volatility, it is the figure published by the game's software provider, not a measurement of our own.
• Progressive jackpots — pooled prizes that grow across players. Jackpot amounts shown by an operator change constantly and are never a forecast.
• Table games — blackjack, roulette and baccarat in digital form, with outcomes determined by random number generators.
• Live dealer rooms — streamed tables with human dealers, usually with higher minimum stakes and fixed operating hours.
• Mobile play — browser-based casinos and dedicated mobile casino apps. App availability differs by state and by device store.

We name software providers only where an operator or provider has publicly confirmed the relationship, and we publish no game counts we cannot source.

The other products these brands run

Several operators listed here are not casino-only businesses, and their terms often differ across product lines. BetUS, for example, is known primarily as a sportsbook brand alongside its casino, and sports wagering usually contributes differently to bonus wagering — sometimes at a reduced rate, sometimes not at all. Poker rooms, bingo, virtual sports and racebook products appear at some brands with separate promotions, separate bonus balances and separate rollover rules. Sweepstakes-style brands such as Zumba Cards and Amazon Jackpots operate on virtual currency models with prize redemption rules that are legally and practically distinct from real-money casino play. Read the terms for the specific product you intend to use; a single account does not mean a single set of rules.

Accuracy, and the limits of it

We fact-check on publication and re-check periodically, but bonus terms, payment options and state availability change frequently and often without announcement. Information on this site is provided as-is, for general research. Where an operator's published terms conflict with anything you read here, the operator's terms prevail.

We distinguish three things in our writing: confirmed information, casino advertising and open questions. If something is an advertised claim we have not been able to verify independently, we label it as such. If you spot an error, tell us through our contact page and we will correct it.

Your responsibilities

• Confirm you meet the age and state-residency requirements before registering anywhere.
• Read the operator's full terms, including bonus terms, before depositing or opting in.
• Provide accurate registration and verification details — false information is the most common reason withdrawals are blocked.
• Hold one account per operator unless its terms explicitly allow more.
• Handle your own tax position on gambling winnings; we do not provide tax advice.
• Gamble only with money you can afford to lose. Gambling is entertainment with a cost, never a way to make income or fix a financial problem.

Player protection and support

Licensed US operators are required to offer tools including deposit limits, loss limits, session reminders, cooling-off periods and self-exclusion. Several states also run their own self-exclusion registers that cover every licensed operator in that state. Independent blocking software can restrict gambling sites at the device or network level if you want a barrier that is not controlled by the casino.

If gambling has stopped being a leisure activity for you, free confidential help is available 24/7 in the US through the National Problem Gambling Helpline at 1-800-522-4700, by text or online chat. Our responsible gambling guide sets out the tools in more detail.

Intellectual property and acceptable use

The written reviews, comparisons, ratings and guides on dunesciences.com are the property of USA Online Casinos. You may quote briefly with attribution and a link. You may not republish substantial sections, scrape the site systematically or present our ratings as your own. Operator names, logos and trademarks belong to their respective owners and appear here for identification only.

Changes to these terms, and how to reach us

We update these terms when our methods, disclosures or legal obligations change, and the revision date at the top of the page reflects the most recent review. Continued use of the site after a change means you accept the current version.

Questions about how we rate operators, our commercial arrangements or a specific listing are welcome. More about who we are and how we work is on our about page, and any query about these terms can be sent through the contact form. We respond to correction requests first.