A game-design property
Volatility comes from the game’s underlying payout distribution. In particular, it is not a live meter showing whether a slot is currently ready to pay.
Understand slot machine volatility and compare low, medium and high volatility slots. Explore games with developer-published volatility ratings, learn how volatility differs from RTP and hit frequency, and check the exact slot version before using Gold Coins or eligible Sweeps Coins.
Slot machine volatility, sometimes called slot variance, describes how widely a game’s payouts can vary around its theoretical average. In fact, this is the same underlying concept in a sweepstakes slot as in other RNG slots. For example, a lower-volatility design generally concentrates more return in smaller awards. A higher-volatility design may distribute more return through occasional larger results and longer stretches of small or no prizes.
Volatility describes the variability of results, not the outcome of your next spin. In particular, it does not tell you when a bonus will arrive, whether a spin will win or how many coins you will finish with. For example, two slots can have similar RTP percentages but very different patterns of payouts.
For the full game directory, start with the ACS Sweepstakes Slots Hub. To compare slots with other game families, use our Sweepstakes Casino Games Guide.
Volatility comes from the game’s underlying payout distribution. In particular, it is not a live meter showing whether a slot is currently ready to pay.
Studios may publish low, medium, high, very high or combined labels. As a result, there is no single standardized scale used by every provider.
However, a game can be advertised at a casino without being available to you in both Gold Coin and promotional Sweeps Coin modes.
These are general descriptions of payout distribution. Therefore, when comparing low volatility slots with high volatility slots, rely on the exact provider-published classification rather than artwork, maximum award or bonus mechanic. Compare the slot examples below.
Low-volatility games are designed for smaller relative fluctuations around their mathematical average. For instance, small awards may form a greater share of the return, although losing rounds and long dry spells remain possible.
Provider example: Money Maker (BGaming) is labeled Low on the studio’s game page. Casino catalogues and coin-mode availability vary, so the studio rating alone does not establish US availability.
Medium-volatility slots generally sit between steadier low-variance games and the broader swings of high-variance games. Nevertheless, they can still have free spins, multipliers and meaningful losing streaks.
Provider example: Cat’s Soup (BGaming) is labeled Medium. However, the studio classification does not establish availability at a US sweepstakes casino.
High-volatility designs may concentrate more return in comparatively rare, larger awards. For example, a substantial maximum win can coexist with many rounds that pay nothing or less than the amount played.
Provider example: Book of Cats Megaways (BGaming) is explicitly labeled Very-high.
A practical overview of what the terms normally describe. In short, these are tendencies within mathematical designs, not frequencies or prize probabilities for any named game.
| Characteristic | Low volatility | Medium volatility | High volatility | What to remember |
|---|---|---|---|---|
| Variation in results | Generally smaller swings | Middle range | Generally wider swings | No category predicts a single spin. |
| How prizes may be distributed | More return in smaller awards | A mixture of award sizes | More return may depend on rarer larger awards | Not a published hit rate or win probability. |
| Time between notable results | Often designed to be less uneven | Can vary substantially | Long stretches without a significant award are possible | Every session can differ from the average. |
| RTP relationship | No fixed RTP range | RTP varies by title | Independent of the volatility label | Read the exact version’s RTP separately. |
| Bonus-round role | May still have bonuses | May mix base and feature awards | Large features may carry substantial return | The feature alone does not prove volatility. |
However, even when a title has a volatility label, the actual gaming experience may feel different over a short sample of spins. Instead, the classification describes an underlying distribution, not a promise of a smoother or more exciting session.
Developer-published volatility ratings and RTP figures can differ from the game configurations offered by individual casinos. In addition, a studio demo does not establish US sweepstakes availability.
| Title / provider | Published volatility | RTP on source | US sweepstakes listings | Game sources and version notes |
|---|---|---|---|---|
| Money Maker BGaming | Low | 97.00% on the current BGaming game page; another studio hub entry displays 97.03% | US sweepstakes availability is not established | Official BGaming game page; RTP may differ by game configuration |
| Cat’s Soup BGaming | Medium | 98.06% (studio page) | US sweepstakes availability is not established | Official BGaming game page |
| Bonanza Trillion BGaming | High | 97.17% (studio page) | US sweepstakes availability is not established | Official BGaming game page; not to be confused with Bonanza Billion |
| Book of Cats Megaways BGaming | Very-high | 97.07% on BGaming; 96.95% on PlayFame’s public listing | Named in game listings for Pulsz, Spree, PlayFame and Stake.us | Official studio data and ACS game review. Confirm active mode and build |
| Bonanza Billion BGaming | High in BGaming’s 2026 article; game page labels it Low-High | 95.97% (studio game page) | See the ACS slot review; check casino-specific game information | Game specification and Studio classification article |

BGaming publishes a very-high volatility classification and a 97.07% theoretical RTP for its studio version. For example, its free-spin feature uses expanding symbols and potential multipliers. Meanwhile, PlayFame publicly lists 96.95% RTP for its configuration, so the active game information screen matters more than a generic slot statistic.
Listed at: Pulsz, Spree, PlayFame and Stake.us in published casino game content. However, coin-mode access and state eligibility vary by casino.
Read Book of Cats Review
BGaming – CascadesBGaming describes this game as High volatility in a 2026 article, while its game page uses the Low-High label. Therefore, check the specific game’s information panel before comparing volatility ratings.
Game RTP: 95.97% on the BGaming page. Casino build: check in-game rules.
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3 Oaks Gaming – Hold & WinIts Hold & Win feature has its own payout rules. A volatility category is not established for every playable configuration. Instead, use the rating in the selected game information panel when available.
Volatility: Check the game-specific information panel.
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3 Oaks Gaming – Hold & WinA Hold & Win bonus can change how awards are distributed, but the feature name is not a volatility rating. Instead, read the game’s own information panel before comparing it with other titles.
Volatility: Check the game-specific information panel.
Read Slot ReviewRTP (return to player) is the theoretical proportion of the total amount played that a game’s design returns over a very large number of rounds. By contrast, volatility describes how unevenly those returns can be spread. They measure different characteristics.
For example, imagine two fictional slots each designed with a 96% RTP. Over time, both are designed to return about the same share in aggregate. Even so, that percentage is not a promise that one player will receive 96 GC or SC after playing 100 coins.
However, actual results can deviate substantially from theoretical RTP, particularly over short sessions. In addition, the chosen casino version may use a different RTP setting.
One of those hypothetical slots could be designed with many relatively small awards. By contrast, the other could return a larger share through rarer, much larger awards. Even if the RTPs match, the experience can look very different.
In either case, neither design is due to pay after a run of non-winning rounds. In fact, historic results do not provide a reliable prediction of the next outcome.
Hit frequency (sometimes shown as hit rate) concerns how often a game records a qualifying win according to the provider’s definition. By contrast, volatility concerns the variation in the sizes of returns. These measures can be related but are not interchangeable.
For instance, a spin returning less than the amount played may still count as a winning combination under the game’s rules. Therefore, hit frequency is not automatically the percentage of profitable spins.
For example, studios may present the figure as a percentage, a ratio or rounds per occurrence. Therefore, do not compare two numbers without checking what each provider counts.
The average rate of triggering a special feature is not the same as the frequency of any paying combination. As a result, never infer one figure from the other.
For example, a slot with many small hits could still have a substantial share of return tied to rare bonuses. Conversely, a slot with a lower hit frequency is not automatically a higher-volatility game. In short, without a published model, neither metric can be reconstructed reliably just by watching a handful of spins.
In practice, special features can change the distribution of payouts. However, names like Megaways, Hold & Win, free spins or progressive jackpot describe mechanics, not a universal volatility grade.
If a rare free-spin round has the potential to deliver a substantial share of the game’s theoretical return, it can contribute to wider swings. Meanwhile, smaller base-game wins may occur in between. Ultimately, the feature’s actual effect depends on the game math.
Megaways games can change the number of symbols on their reels from spin to spin. However, more ways to form combinations do not prove a higher RTP or a particular volatility level. Compare sweepstakes Megaways slots.
Hold & Win games typically include a respin feature that can collect special symbols or awards. Nevertheless, the share of return concentrated in the feature differs from game to game. See ACS’s Hold & Win guide.
Similarly, a progressive jackpot, fixed prize or local jackpot can influence a game’s payout distribution, but a jackpot label alone does not tell you its volatility. Therefore, check whether the award uses entertainment currency or an eligible promotional balance, and whether qualifying rules apply. Our Sweepstakes Jackpot Slots guide explains fixed and progressive prizes.
Some developer demos advertise bonus-purchase options, while particular US sweepstakes sites may disable them. Even where offered, buying access to a feature does not create a guaranteed profit and can change the calculation that applies to that feature. For that reason, do not assume the same math as regular base play.
For exact information, start with the developer and the game information panel at your chosen casino. Even when the game title matches, the available build or currency mode may differ.
First, look for the exact game title and its studio. Next, search the official specification for volatility, RTP, the payout table and version information. However, some providers list several possible configurations.
Next, inside the available casino version, use the information icon, paytable or rules screen. Confirm the RTP actually displayed for that build, if published. Finally, note whether volatility is shown or omitted.
Finally, check Gold Coins versus Sweeps Coins separately and confirm age, state, identity, playthrough and redemption conditions. If volatility is absent, however, record it as unconfirmed rather than guessing.
These are examples of Book of Cats Megaways appearing in the referenced casino game content, not proof that every slot above is offered, that the casino uses the developer’s headline RTP, or that promotional play is enabled in every location.

Pulsz’s Megaways game content names Book of Cats Megaways. Nevertheless, availability and supported coin modes can differ by account and state.

Similarly, Spree’s published Megaways collection names Book of Cats Megaways. Check whether the exact title and its promotional Spree Coin mode are available to you.

Meanwhile, PlayFame’s public Book of Cats Megaways page identifies BGaming and a 96.95% RTP listing, which differs from the studio’s 97.07% headline value.
For other options, use our full casino reviews directory. In addition, operator terms and available games may change without notice.
Volatility is about a particular game’s math. By contrast, the casino’s coin system determines the nature of play and potential prize eligibility. Therefore, the existence of a title in one currency does not establish it in the other.
Read Sweeps Coins vs Gold Coins and our state-by-state casino guide. For example, a game may be restricted, GC-only or unavailable depending on the state, operator and software provider. Check the casino’s current Sweepstakes Rules for the specific minimum redemption, permitted methods and any playthrough before requesting a prize.
Find clear answers about slot risk, game statistics, special features and promotional-currency access.
It describes how unevenly a slot’s returns can be distributed. Lower volatility generally means less variation, while higher volatility can mean more widely separated results and occasional larger awards. It does not say what will happen on the next spin.
A high-volatility slot is designed with a wider range of possible payout outcomes. Compared with a lower-volatility design, more of its theoretical return may come from relatively rare, larger awards. However, this does not establish a particular win rate, promise a bonus or predict the next spin. Check the provider’s published classification for the specific title.
Low-volatility slots generally have a less uneven payout distribution, with smaller awards accounting for more of the theoretical return. Nevertheless, they can still produce many losing spins, and the label does not mean a positive balance is likely or guaranteed. For a concrete provider example, see Money Maker in the comparison table.
Not automatically. The labels describe different payout distributions, not guaranteed gains or a universal measure of quality. Instead, consider each slot’s RTP, rules, currency and your entertainment limits separately.
There is no such guarantee. A high or very-high rating describes a statistical pattern of possible outcomes, not a promise that a significant award or bonus will ever happen during your play.
Generally, the published classification refers to a specific game design or configuration. Individual outcomes naturally fluctuate, but a losing streak does not mean the slot has become more or less volatile or is due to pay.
They are different. RTP is a theoretical long-run average return across many plays. By contrast, volatility describes the spread of results around the average. For example, games can share an RTP while having different payout distributions.
These are separate measures. Hit frequency concerns how often qualifying paying outcomes occur under the provider’s definition, whereas volatility concerns the distribution of payout values. A hit may return less than the amount played.
Not necessarily. Free spins, cascades, multipliers, Megaways and Hold & Win are features rather than universal volatility ratings. Instead, only the actual game’s published specifications or rules can establish its classification.
BGaming lists Book of Cats Megaways as very-high volatility, with a studio RTP of 97.07%. Meanwhile, PlayFame lists a different 96.95% RTP configuration. Therefore, always check the game information for the version available in your account.
BGaming labels Money Maker as low volatility on its official game page. However, the developer’s rating does not establish availability at a US sweepstakes casino.
BGaming publishes Cat’s Soup with medium volatility and 98.06% RTP on its official page. However, this does not establish that the title is available at a US sweepstakes casino or that the same build is offered in Sweeps Coin mode.
Do not assume so. Check the exact title and game information panel for each available currency mode. In addition, an operator’s public listing or a studio demo may not reflect the settings of every playable version.
Only qualifying promotional winnings may be eligible for prize redemption, where allowed by the operator and your location. By contrast, Gold Coins are not redeemable. In addition, age, identity, playthrough, minimum and method-specific rules apply regardless of volatility.
Look for the precise title on the official developer website and the in-game paytable or help screen. However, if the provider and available casino version do not disclose a rating, treat it as unconfirmed instead of guessing from win size or reel mechanics.
Official developer specifications describe individual games, while regulatory resources explain the underlying statistics. Casino-specific configurations and availability can change.
Information date: November 5, 2026. Studio game characteristics do not establish licensing, account eligibility or prize eligibility in any US state. Volatility information is educational and cannot guarantee any playing outcome.