Terms and Conditions
These terms set out how you may use Online Casino Sites at nanomaterialscompany.com, what our casino listings are and are not, and where our responsibility ends and an operator's begins. They also explain the one set of terms that matters more than ours: the conditions attached to the casino bonuses we describe. Read both before you deposit.
Last reviewed: September 25, 2026. Editor: Megan Dalton.
Who may use this site
Online Casino Sites publishes research-based information about online casinos for adults in the United States. By using the site you confirm that:
- You are at least 21 years old, or the minimum legal gambling age in your state, whichever is higher.
- You are responsible for checking whether real-money online casino play is lawful where you are physically located.
- You will not rely on this site as legal, financial or tax advice.
Online casino regulation in the US is set at state level, not federally. A handful of states license and regulate real-money online casino gaming; many others permit only sweepstakes or social casino models, and some permit neither. Federal law — principally the Wire Act and UIGEA — governs interstate transmission and payment processing rather than issuing player licenses. An operator accepting a signup from your state is not the same thing as that operator being authorized to serve your state. If you cannot verify a license with a state gaming regulator, treat availability as unconfirmed.
Commercial disclosure
Online Casino Sites earns revenue from affiliate partnerships. If you follow a link to a casino and open an account, we may receive a commission from that operator. You pay nothing extra, and commission does not buy a position in our rankings or raise an editorial rating. Where a listed brand has no commercial relationship with us, its placement is unaffected either way. Ratings shown on this site are editorial opinions formed from published information — they are not customer-review scores and they are not results of gameplay testing.
What our rankings mean, and what they do not
Our ratings are relative judgments about documented features: the headline offer and its stated conditions, the spread of games, payment options advertised for US players, stated withdrawal limits and timeframes, the clarity of the terms, licensing or regulatory claims, and the visibility of responsible gambling tools. We research and verify published material. We do not claim to have deposited, played or withdrawn at any listed site.
Nothing here is a guarantee. We cannot guarantee a withdrawal will be paid, that a bonus will still be live when you arrive, or that terms have not changed since our last review. Gambling involves losing money and is never a source of income or a way out of financial difficulty.
Bonus terms always override our summaries
We quote headline offers because that is what readers search for. Headlines are marketing; the operator's terms are the contract. Where the two disagree, the operator's terms govern. The conditions below are the ones that most often change what an offer is actually worth.
| Term | What to check before you accept |
|---|---|
| Wagering requirement | The multiple you must stake before a bonus balance converts to withdrawable cash. Check whether it applies to the bonus only or bonus plus deposit. |
| Game weighting | Slots usually count 100%; blackjack, roulette, baccarat and live dealer tables often count far less or not at all. |
| Maximum bonus bet | A per-spin or per-hand cap while a bonus is active. Breaching it can void the bonus and any winnings from it. |
| Bonus expiry | The window to complete wagering. Unfinished bonuses and unused free spins are normally removed at expiry. |
| Cashout cap | A ceiling on what you can withdraw from bonus winnings — common on free spins and no-deposit offers. |
| Minimum deposit | The qualifying amount. Depositing below it usually means no bonus is granted at all. |
| Excluded games | Progressive jackpot slots and some high-RTP titles are frequently barred while a bonus is running. |
The offers we list, and their conditions
Below are individual notes on the three highest-ranked brands on our lists. Each headline is the operator's own advertising, reproduced so you can compare it against the terms you will be shown at signup. Every one carries a limitation worth weighing.
Raging Bull — 410% up to $10,000 + 50 Free Spins
It sits top of our lists because the advertised package is unusually large in both percentage and ceiling, and free spins are bundled in rather than sold as a separate promotion. Editorial rating 10.0. The practical caution: a four-figure headline is only reachable by depositing at a level most casual players never will, and large match percentages typically arrive with correspondingly heavy playthrough, maximum bet caps and a list of excluded slots. Confirm the wagering multiple, the qualifying deposit and any cashout cap on the 50 spins before you opt in. Availability depends on your state.
Magician Bet — 101% No Wagering
Ranked 9.7, and included for a different reason entirely: a no-wagering structure removes the single biggest reason bonus balances never convert. If the terms hold, winnings are cash rather than a bonus balance chasing a multiple. The limitation is scale — a 101% match is modest next to the headline percentages elsewhere, and no-wagering offers commonly attach tighter caps on the qualifying deposit, on maximum stakes, or on how much of the bonus can be withdrawn. Read what "no wagering" actually covers: sometimes it applies to the match but not to spins.
Slots of Vegas — 375% Bonus + 50 Free Spins on Cash Chaser
Rated 9.7, and on the list because the spins are tied to a named title, which tells you exactly where they can be used instead of leaving it vague. That specificity cuts both ways: spins restricted to one game give you no choice of volatility or RTP, and the value per spin is usually fixed at a low denomination. As with any large percentage match, check the playthrough, the maximum bet while the bonus is live, and whether table games contribute at all.
Other listed brands
Uptown Aces (600% for new players), Card Crush (instant welcome reward of 2 mystery coins and 5 cards), Zumba Cards (250% deposit bonus up to 250 SC), BetUS (200% up to $4,000 for new players), Amazon Jackpots (4 posters plus 40 free SC and a bonus wheel for $20), Slots and Casino (500% up to $2,500 across three deposits) and Bets.FM (225% deposit bonus up to 1 BTC plus 225 free spins) also appear on our lists. Two points of difference matter. Offers quoted in SC are sweepstakes coin promotions, which operate on a different legal model from real-money casino play and carry their own redemption rules. The Amazon Jackpots offer is a paid $20 purchase, not a free giveaway. And the Bets.FM headline is denominated in cryptocurrency, so its dollar value moves with the market and it may not suit readers who want USD-only accounts.
Money: what it costs to take part and how you get paid
We do not process payments, hold funds or set limits. Those belong to the operator and its payment partners. The general shape in the US market:
- Debit cards — the most widely accepted deposit method, usually instant, occasionally declined by the issuing bank on gambling merchant codes.
- Credit cards — accepted by some operators, blocked by some issuers, and sometimes treated as a cash advance with interest from day one.
- ACH and online bank transfer — common for both deposits and cashouts; withdrawals typically take a few business days once approved.
- E-wallets — often the quickest route back out where offered. PayPal availability in particular varies by operator and by state; verify it on the cashier page rather than assuming.
- Cryptocurrency — used by some listed brands. Values fluctuate and conversion spreads apply.
Expect a minimum deposit to qualify for any bonus, a separate minimum withdrawal amount, daily, weekly or monthly withdrawal caps, and in some cases a fee on the second or subsequent cashout within a period. Withdrawal times quoted by operators are advertised targets and start after verification is complete, not when you click the button.
Verification, and why a withdrawal stalls
Licensed US casinos are required to identify their customers. You should expect to supply photo ID, proof of address and, for larger or unusual amounts, source-of-funds documentation. Complete this early rather than at cashout — it is the single most common cause of a delayed payout. Names on the payment method and the casino account must match.
If a withdrawal is refused or held, the sequence is: contact the operator's support in writing and keep the thread; escalate through its formal complaints procedure; then, if the operator is licensed in a state that regulates online casino gaming, raise the matter with that state's gaming regulator or the operator's designated alternative dispute resolution body. We are an independent publisher, not a party to your account agreement, and we cannot recover funds, reverse a decision or intervene on your behalf.
What is on offer at the sites we cover
So you know what these terms relate to, the catalogues on listed brands generally break into:
- Slots — the bulk of most libraries, varying by volatility and published RTP. Low-volatility games pay smaller amounts more often; high-volatility games do the opposite.
- Progressive jackpots — pooled prizes that grow until won, and the category most often excluded from bonus play.
- Table games — blackjack, roulette and baccarat in digital form, run on random number generators that are independently tested at regulated operators.
- Live dealer — streamed tables with human croupiers, usually with higher minimum stakes and little or no bonus contribution.
- Sweepstakes formats — coin-based play at brands quoting SC offers, with redemption rules in place of conventional withdrawals.
Mobile play is browser-based at some brands and app-based at others; app availability in US stores is tied to the states an operator is licensed in.
The other products these operators run
Several listed brands are not casino-only. BetUS, for example, advertises sportsbook activity alongside casino play. Sports betting, poker and racebook wallets are frequently governed by separate promotional terms, separate wagering rules and, in some states, a separate license — a casino bonus will not normally clear on sports wagers, and vice versa. Treat each vertical's terms as a distinct document.
Intellectual property and acceptable use
Content on nanomaterialscompany.com — text, tables, ratings and layout — belongs to Online Casino Sites or its licensors. You may quote short extracts with attribution and a link. You may not republish pages wholesale, scrape the site at volume, or present our ratings as your own. Brand names and logos belong to their owners and appear here for identification.
You agree not to use the site to break any law applicable where you are, to misrepresent your age or location to an operator, or to interfere with the site's operation.
Accuracy, changes and liability
We check listings against published sources and date our reviews. Offers, limits and state availability change without notice, and information that was correct on the fact-check date above may not be correct when you read it. Where something is disputed or unconfirmed, we say so rather than smoothing it over. To the extent permitted by law, Online Casino Sites accepts no liability for losses arising from gambling, from reliance on information here, or from your dealings with a third-party operator. Your contract is with the casino, under its terms.
We may update these terms. The review date at the top of this page shows when they last changed, and continued use after an update means you accept the current version.
Playing within limits
Every operator we list should offer deposit and loss limits, session reminders, cooling-off periods and self-exclusion. Use them before you need them. Nationally, the 1-800-GAMBLER helpline operates 24/7 and is free and confidential; several states run their own self-exclusion registers, and third-party blocking software can restrict gambling sites at the device level. Our responsible gambling guidance covers these tools in more detail.
Questions about these terms
If something here is unclear, or you think a listing is out of date, tell us. You can reach the editorial team through our contact page, and more about how we research and rate casinos explains the process behind the rankings these terms refer to. We read every correction sent to us, and we would rather fix a listing than defend it.