Free Spins Slots

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Gambling at casinos involves risking money to win more money. But this is not always the case when playing online, and online slots in particular. One of the most exciting benefits of betting in web-based casinos is, in fact, the opportunity to build a bankroll without spending a dime. This is the ultimate form of gambling entertainment and is preferred by thousands of punters these days.

Slot fans have the opportunity to win real money with free spins on their favorite games, and such offers are common across a large number of reputable gambling sites. Many gambling sites promise free spins in an effort to attract new players and keep their loyal customers. Free spins on popular slot games are also often given out as in-game features or on a regular basis in order to keep customers satisfied. This is a wonderful way to have fun and collect some winnings without risking your own finances, whether you are an experienced player or you are just entering the world of online gambling. There are, however, certain limitations and conditions players should take into consideration if they want to be successful when taking advantage of the free spins they are offered.

Free Spins as Game Feature

The first slot machines that became popular across casino floors in the 1960s were quite primitive by today’s standards. They were bulky electromechanical devices that had 3 reels and a single pay line that ran across the middle of the reels. Soon, the lever was removed, and by the next decade, video slots were already occupying Las Vegas casinos.

The coming of the World Wide Web, however, turned out to be a real revolution in slot development. Online slots made it possible to add far more exciting bonuses and features, making the gameplay much more thrilling and rewarding for players. Among the most common and lucrative slot features right now are free spins, which increase your winning opportunities significantly. Sometimes they are called bonus spins or free games, but whatever the name, they seem to be the favorite in-game feature for most players.

How to Trigger Free Spins in Online Slots

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Free spins are bonus features in many online slots, which can be activated in a number of ways. Typically, free spins are triggered when the player manages to get several special symbols while playing an online slot.

Benefits of the Free Spins Feature

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The most obvious benefit of playing an online slot with the free spins feature is that you receive more chances to win without spending more on bets.

Free Spins as a Casino Bonus

The free spins feature in some slots should not be mistaken for the free spins bonus offered by numerous online casinos today. Casino bonuses are given by almost all gambling operators on the Internet who wish to provide competitive offers and stand out from the rest. The bonus that is considered to attract the largest portion of new players is the free spins bonus. The reason is probably that it allows them to test the slots and the online casino they have just registered at, without risking any actual finances.

The specific conditions of the free spins bonus vary significantly across different casinos. Some betting sites credit free spins as soon as you sign up as a real-money player, while others require you to make a deposit before giving you any kind of bonus. There are many other rules and terms players should consider before registering a casino account.

No-Deposit Free Spins

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One of the most tempting incentives for new players is the no-deposit bonus, which can come in the form of free cash or free spins. Customers can claim their free spins as soon as they open an account at the site.

Deposit Bonus Free Spins

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Although no-deposit free spins bonuses can be found relatively easily, they are not as common as the free spins credited as part of a Welcome Package offered by many casinos.

Occasional Free Spins Bonus

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Free spins can be acquired in many ways, and a deposit or a new registration is not always needed. Along with the promotions tailored to new players, online casinos tend to give surprise gifts to their regular customers as well.

Choosing a Free Spins Casino

free spins casino imageNew online casinos open every day, and most of them have seemingly good promotions and bonuses in store for those who join them. It is impossible, however, to sign up at every one of them or to keep track of the hundreds of free spins offers that circle the web. What you can do is regularly visit gambling-related sites and forums where experts and experienced punters have done the research for you. Some reviewers may be biased or fake, but there are also many reputable sources of information on the Internet that can be used.

Of course, it is advisable to always do your own research, and there are several things you should take into account when choosing an online casino. It should be trustworthy, properly licensed, and have certificates for fairness and online security. Players should also choose gambling sites with a good reputation and a large number of players over unpopular sites with poor support and ambiguous Terms and Conditions.

All bonus conditions should also be clearly defined and explained in a plain, straightforward way. Most free spins offers will be described in detail on the Promotions page of the casino site, so before accepting any bonus, players are advised to read all of these carefully. There are different requirements and limitations associated with every free spins offer, and they are presented below in more detail.

Choosing a Free Spins Bonus

Slot players have plenty of free spins bonuses to choose from, whether offered by different casinos or even within a particular casino site. If you have already opened an account at a reliable online casino, you should try to keep up with all the promotions and special events it holds. Often, free spins offers will be sent to your email, so you should check it regularly. In most cases, however, such promotions are considered “members-only” and are available only to players who have made at least one real deposit into the casino. Your best option for getting as many of these incentives as possible is to become a VIP member, but only regular depositors can achieve this.

When picking a free spins bonus, players also need to review its conditions closely and decide whether claiming it will be worth it. The first thing to consider is the number of free spins you will receive and whether they can be used on a single slot game or on a game of your choosing. The no-deposit free spins promotions are certainly the most preferred bonus for punters because they do not need to make a deposit. You should always look for wager-free bonuses, but they are harder to find and usually come with a withdrawal limit. If such offers are unavailable, you should check the wagering requirements of the spins you can sign up for; if they are too high, claiming the bonus may not be wise.

Wagering Requirements Explained

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One of the most important things players should look for in the casino’s Terms and Conditions section before getting free spins is the wagering or playthrough requirement.

Withdrawal Limits Explained

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The majority of online casinos have a cap on the amount players can cash out from free spins and other bonuses. The idea behind this policy is rather simple: casinos cannot afford to pay out huge winnings to players who have not made even a single deposit.

Playing with a Free Spins Bonus

There are certain rules players need to comply with when playing the free spins they receive, whether as a no-deposit bonus or after they have made a deposit into the casino. While the wagering requirements and cash-out limits deal with the winnings from these spins, casinos impose further limitations that have to do with the play itself. Playing slot games with your own money is different from playing the same slots with free spins. Usually, you cannot change the size of your bet or choose the number of active pay lines. You may also be allowed to use the free spins only on selected games.

When choosing an online casino and a particular free spins bonus, you want a site with the fewest requirements and limitations.

Playing Free Spins on Progressives

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Progressive jackpot slots are among the most popular slot games in virtually any casino. The reason is that they give you the chance to win a jackpot worth millions.

Usual Bet Size of Free Spins

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Typically, free spins are given at specific bet sizes and pay lines. They depend on the online casino where you play, but usually bets are limited to a maximum of $5-$10.

Free Spins on Specific Games

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Sometimes free spins can be played on any game offered at a particular casino site, and players are free to choose their favorite slots.

Mega Free Spins

free spins mega imageAs most free spins bonuses have limits on the allowed bet size, the amount you can potentially win is also limited. If you normally bet $0.50 or $1 per spin, this would not bother you, but there are players who prefer higher stakes. They all have different strategies when playing slots, and a popular one among high rollers in particular is to increase the bet size per spin in order to maximize winnings. This is where Mega Free Spins come in handy.

Sometimes called super spins, Mega Free Spins are regular free spins with one key difference: the bet size is significantly larger. Instead of playing with $5 bets, players are allowed to bet $50 per spin, for instance, so they have a chance of winning more each round. Of course, before signing up for such a bonus, you need to check whether there is a withdrawal limit attached to it and whether these spins qualify for the jackpot.

Mega Free Spins are not a common casino bonus. Unlike regular spins, they are not given in large numbers; online casinos that do offer them might give you up to ten of these attractive incentives.

Slots Featuring Free Spins

Free Spins slots imageWhile it is nothing unusual for a slot to feature a Free Spin bonus game, you can come across different variations of this special feature. That means some slots with free spins deserve your attention, as they may potentially award more bonus spins and boost your profit from the base-game wager.

Below, we have provided a list of top video slot titles that offer Free Spins, often combined with other special features and even re-triggers that can bring players additional bonus spins to play with. Many of the featured slots have high volatility, meaning it may take some time to trigger bonus spins, but once you unlock them, there is plenty of potential for enormous payouts.

Free Spins Slots
Slot Title Software Provider RTP Reels Paylines Bonus Features
Bigger Bass Bonanza Pragmatic Play, Reel Kingdom 96.71% 5 12 fixed lines Free Spins, Money-collecting symbols
Pyramid Bonanza Pragmatic Play 96.48% 6 No paylines Tumble Feature, Free Spins, Bonus Buy
9 Pots of Gold HyperSpins Microgaming, Gameburger Studios 96.24% 5 20 fixed lines Pot Scatter cash prize, Hyperspins, Free Spins
Bust the Mansion Microgaming 96.23% 5 25 fixed lines Free Spins, Link&Win feature
Mega Mine Relax Gaming 96.15% 5 32-32,768 ways to win Free Spins, Bonus Buy, Nudging Stacks
Gonzo’s Gold NetEnt 96.11% 5 Cluster pays Free Spins, Expanding Symbols
Book of Gold: Double Chance Play’n GO 95.04% 5 10 fixed lines Free Spins, Expanding Symbols
Hall of Gods NetEnt 95.30% 5 20 fixed lines Free Spins, Bonus Game, Expanding Wilds
Danger High Voltage Megapays BTG 96.39% 6 4,096 ways to win Free Spins, Megaways
Buffalo King Pragmatic Play 96.06% 6 4,096 ways to win Free Spins

Top 10 Free Spins Slots

1Bigger Bass Bonanza

Bigger Bass Bonanza

Although there are several slots in the Bonanza series, this title offers bigger and better potential wins, making every fishing expedition both fun and rewarding. Bigger Bass Bonanza is a joint creation from Pragmatic Play and Reel Kingdom, delivering larger multipliers and enhanced win opportunities.

The slot is played on five reels with 12 fixed paylines that pay whenever three or more identical symbols land across them. Bets range from just $0.12 per spin up to $240. While the base game can be generous, activating the Free Spins feature makes it far easier to rack up even bigger rewards. Best of all, the bonus game can be retriggered, granting additional free spins to lucky players.

Bigger Bass Bonanza
Software Pragmatic Play, Reel Kingdom
Release Date 2021
RTP 96.71%
Bet Limits $0.12 – $240
Reel Grid 5×4
Paylines 12 fixed lines
Wilds Yes
Scatters Yes
Bonus Games N/A
Free Spins Yes
Progressive Jackpot N/A
Max Payout 4,000x total bet
Gamble Feature N/A

Bigger Bass Bonanza
You will see the regular playing card values spinning across the five reels, with every icon from 10 to A capable of paying 12x the single-line bet when it lands five times on a payline. Keep an eye out for the Money symbols, represented by fish icons that carry random cash values. When five land, their combined value is awarded. Among the high-paying symbols, various pieces of fishing gear appear, with a fishing boat being the most-valuable symbol, paying 240x your bet per line whenever it hits five times on a payline.

The Wild fisherman can substitute for other symbols and help complete winning lines. Meanwhile, the Scatter symbol triggers the Free Spins feature whenever it lands three or more times anywhere on the reels. Seeing three, four, or five Scatters will award 10, 15, or 20 free spins respectively. During free spins, the Wild becomes especially valuable because it collects the cash values attached to Money symbols. Each time a Wild lands, it is also collected, and every set of four Wilds awards 10 additional free spins.

When the feature is retriggered, players also receive a 2x multiplier attached to Money symbols. Free spins can be retriggered up to three times, pushing the multiplier to 3x and then 10x on the second and third retrigger. As you can see, Bigger Bass Bonanza has plenty to offer when it comes to free-spin action.

Watch Bigger Bass Bonanza Gameplay

2Pyramid Bonanza

Pyramid Bonanza

If you are tired of the standard slot experience, give Pragmatic Play’s Pyramid Bonanza a spin and enjoy a fresh way to pile up wins. At first glance, the game presents a classic six-reel, five-row grid. However, instead of paylines, it pays whenever eight or more identical symbols appear anywhere on the reels.

Do not confuse this with cluster-pay mechanics, Pyramid Bonanza awards its prizes even if the matching symbols are not touching. There is also no requirement for a winning combination to start on the first reel; any eight-plus symbol match anywhere on the grid will do. These innovative base-game mechanics are complemented by the Tumble feature and the opportunity to trigger free spins.

Two bet modes are available, letting you pick either a 20x or a 25x bet multiplier. With the 20x option, stakes range from $0.20 to $100, and you can purchase the bonus feature at any time for 100x your total bet. Choosing the 25x bet multiplier increases the stake range to $0.25–$125; the bonus buy feature is disabled in this mode, but your chance of activating Free Spins doubles because more Scatters can land in the base game.

Pyramid Bonanza
Software Pragmatic Play
Release Date 2022
RTP 96.48%
Bet Limits $0.20 – $125
Reel Grid 6×5
Paylines No paylines
Wilds N/A
Scatters Yes
Bonus Games N/A
Free Spins Yes
Progressive Jackpot N/A
Max Payout 21,100x
Gamble Feature N/A

Pyramid Bonanza
Every symbol in Pyramid Bonanza awards a separate payout for 8–9, 10–11, and 12+ identical objects on the grid. Gems of different colors act as the lower-valued symbols, paying between 40x and 200x the single-coin value for 12 or more matches. The high-paying icons – Eye of Ra, Horus, Ankh, and a Scarab – return 240x, 300x, 500x, and 1,000x respectively for 12+ matches.

The Tumble feature can generate multiple wins in a single spin, as every winning combination disappears and allows the symbols above to drop into the empty spaces, potentially re-triggering the Tumble feature.

While Pyramid Bonanza does not include Wilds, a Pyramid acts as a Scatter. Four, five, or six Scatters pay instantly and trigger the Free Spins feature, which begins with 10 free spins and adds 5 more whenever three or more Scatters land during the round. Players using the 20x bet multiplier can also buy the bonus for 100x their total stake.

During free spins, special multiplier symbols appear, carrying a random multiplier between 2x and 100x. These multipliers remain visible until the end of the round. After each free spin, the sum of all multipliers on the screen is applied to the total win from the Tumble sequence.

Watch Pyramid Bonanza Gameplay

39 Pots of Gold HyperSpins

9 Pots of Gold HyperSpins

Thanks to the innovative team at Gameburger Studios, players can now enjoy a revamped version of 9 Pots of Gold that features Hyperspins, a tool that lets you re-spin any individual reel. While the core gameplay remains unchanged, this new function can considerably boost your winning chances and lead to even bigger payouts.

Bathed in Irish luck, everything on the five reels is tinted green. All 20 paylines are active on every spin, and wagers can be set from $0.20 to $60. The video slot offers several special features, with the Golden Pot Scatter delivering a top prize of 2,000x the total bet. Alongside Hyperspins, the game also gives you the opportunity to trigger free spins, making 9 Pots of Gold HyperSpins a worthy entrant on our list.

9 Pots of Gold HyperSpins
Software Microgaming, Gameburger Studios
Release Date 2022
RTP 96.24%
Bet Limits $0.20 – $60
Reel Grid 5×3
Paylines 20 fixed lines
Wilds Yes
Scatters Yes
Bonus Games N/A
Free Spins Yes
Progressive Jackpot N/A
Max Payout 2,000x total bet
Gamble Feature N/A

9 Pots of Gold HyperSpins theme
The low-paying symbols include a four-leaf clover and a green BAR icon, each awarding 20x the bet per line when five land on a payline. Higher payouts are available for combinations of green hats, lyres, or any type of 7, with the hats paying 40x the single-line stake, and the other two combinations returning 66x. The most lucrative regular icons are the various green 7s, which appear as single, double, or triple 7s and pay 150x, 400x, or 750x your bet per line for a five-of-a-kind,

Special symbols such as Wilds and Scatters add extra excitement. The Wild substitutes for other symbols to help complete wins. The Golden Pot Scatter can land anywhere and pays a cash prize for three or more pots, with nine awarding the maximum 2,000x your total bet.

Free Spins Scatters appear on the middle three reels and trigger the Free Spins feature when they land simultaneously. The number of spins is determined by a spinning wheel, with up to 30 free spins available. Each free-spin option carries either a 2x or 3x win multiplier, and Scatters can land during the bonus to retrigger the same number of spins originally awarded.

The signature addition to 9 Pots of Gold HyperSpins is the feature that lets you re-spin any of the five reels to improve your odds of a winning combination. After a spin, if you believe one reel stands between you and a big win, you can pay the displayed price and re-spin that reel alone. Prices vary per reel because the chance of altering the outcome differs.

Packed with engaging bonus features and strong win potential, 9 Pots of Gold HyperSpins can quickly become a favorite among slot enthusiasts. Between the re-triggerable free spins and the Hyperspins feature, it delivers an exciting gaming experience.

Watch 9 Pots of Gold HyperSpins Gameplay

4Bust the Mansion

Bust the Mansion

Microgaming invites slot fans to join a daring heist inside a luxurious mansion. As you spin the five reels, you will attempt to nab priceless artifacts and collect generous payouts in Bust the Mansion. The slot features 25 fixed paylines that pay for three or more matching symbols. With an RTP of 96.23%, Bust the Mansion offers a respectable potential return, particularly when one of its bonus features is activated.

Bets range from $0.25 to $10 per spin. Although the ceiling might appear low, the game’s high volatility can significantly boost your bankroll, provided you can weather stretches of non-winning spins. Unlocking the Free Spins or Link&Win bonuses is where the slot truly shines.

Bust the Mansion
Software Microgaming
Release Date 2022
RTP 96.23%
Bet Limits $0.25 – $10
Reel Grid 5×3
Paylines 25 fixed lines
Wilds Yes
Scatters Yes
Bonus Games Yes
Free Spins Yes
Progressive Jackpot N/A
Max Payout 1,000x total bet
Gamble Feature N/A

Bust the Mansion themeLike many video slots, Bust the Mansion divides its symbols into low- and high-paying categories. The low-value icons are playing card pips from 10 through A, awarding 25x to 60x the single-line bet when they appear five times on a payline. Priceless artifacts serve as the high-paying symbols of Bust the Mansion; a statue of the Egyptian god Horus is the top icon, paying 500x the bet per line when five land on a payline.

All regular symbols can be replaced by the Wild, which also delivers its own payout when three or more appear on a payline. A gold key acts as the Scatter and awards 10, 15, or 25 free spins when it lands three, four, or five times. During free spins, the Wild Money Vault symbol may appear, substituting for other symbols.

The Money Vault symbol can also drop during the base game. Each vault carries a random win multiplier, and six or more trigger the Link&Win feature. The round starts with three re-spins, and the triggering Money Vaults remain locked in place. Any new Money Vault that lands also sticks and resets the counter to three. The feature ends when no spins remain or when the grid fills entirely, awarding the game’s top prize.

The grand win in Link&Win can reach up to 1,000x the base bet, making this bonus both exciting and potentially lucrative. Overall, Bust the Mansion provides an engaging experience that is well worth a few spins.

Watch Bust the Mansion Gameplay

5Mega Mine

Mega Mine

If you are looking for a slot packed with free spins, Mega Mine by Relax Gaming is a solid choice. The mining theme may be familiar, but the special features create a thrilling experience. Digging for gems can be extremely rewarding because Mega Mine offers up to 32,768 ways to win on every spin, courtesy of its Nudging Mystery Stacks.

In addition to that engaging mechanic, the game includes Free Spins that can produce even larger rewards. Bets can be set from $0.10 to $20, a modest range, though Mega Mine allows you to purchase Free Spins for 70x your total bet. The RTP of the base game is 96.15%, but buying the bonus boosts the return to 97%.

While purchasing the feature may seem risky, the enhanced chance of big wins often appeals to adventurous players, especially those who appreciate video slots that offer free spins on demand.

Mega Mine
Software Relax Gaming
Release Date 2021
RTP 96.15%
Bet Limits $0.10 – $20
Reel Grid 5×4
Paylines 32 – 32,768 ways to win
Wilds Yes
Scatters Yes
Bonus Games Yes
Free Spins Yes
Progressive Jackpot N/A
Max Payout 50,000x
Gamble Feature N/A

Mega Mine themeTo match the mining theme, the reels are filled with multicolored gems. While the low-paying symbols appear as smaller gems carved into stone blocks, the high-paying ones are larger and square. All low-value symbols pay 0.1x, 0.2x, and 0.3x the total bet for three, four, and five of a kind respectively. Among the premium symbols, the red gem tops the list, paying 1x your total bet for five.

A Wild symbol can substitute for any gem to help complete winning combinations. Another symbol to watch for is the Nudging Mystery Stack, which can land partially on any reel and nudge until fully visible. Once settled, the stack transforms into identical symbols and carries a multiplier between 2x and 5x, with each nudge increasing the multiplier by one. The numbers displayed on the fully revealed stacks indicate how many symbols the nudge will reveal.

Because Mystery Stacks can also reveal Scatters, the Mega Free Spins feature triggers when two or more Scatters land. The round starts with six free spins, plus one additional spin for every extra Scatter that activated the feature. Mystery Stacks appear more often during free spins and can also reveal Wilds. Wins during the bonus are capped at 50,000x the total bet.

As noted, impatient players can buy the feature for 70x their current stake. Although it is a significant investment, the potential rewards during the bonus round can make the gamble worthwhile.

Watch Mega Mine Gameplay

6Gonzo’s Gold

Gonzo’s Gold

Gonzo has become the star of several NetEnt titles, and this installment once again follows our favorite conquistador on a quest for treasure. Rather than using traditional paylines or ways-to-win, Gonzo’s Gold is a slot that incorporates cluster pays. You are paid whenever identical symbols land adjacent to each other horizontally or vertically, forming clusters that award the corresponding payout.

To enrich the gameplay, Gonzo’s Gold features special symbols that can unlock various bonus functions, including free spins. The slot accommodates all types of players because the bet limits range from $0.10 up to $200. Keep in mind that Gonzo’s Gold is a high-volatility slot, so long dry spells can precede sizeable wins. Players who enjoy a higher level of risk may appreciate the opportunity to place larger stakes on this NetEnt release.

Gonzo’s Gold
Software NetEnt
Release Date 2021
RTP 96.11%
Bet Limits $0.10 – $200
Reel Grid 5×5
Paylines Cluster pays
Wilds Yes
Scatters Yes
Bonus Games N/A
Free Spins Yes
Progressive Jackpot N/A
Max Payout 6,500x total bet
Gamble Feature N/A

Gonzo’s Gold theme

Staying true to the theme of previous Gonzo games, this slot depicts the conquistador’s journey to Peru in search of hidden riches. Spread across five reels, the grid includes playing card values, statues of mythical creatures, and Gonzo himself, all capable of forming winning clusters. The playing cards from 10 to A are the low-paying symbols, paying out when they form clusters of at least four matching icons. Each card awards 0.5x the total bet for a four-symbol cluster, with maximum payouts of 200x to 300x for a 25-symbol cluster, with A and K paying the most among the card icons.

The statues and Gonzo represent the high-paying symbols, which can deliver prizes for clusters of just three. As expected, Gonzo is the top icon, offering 2x to 5,000x your total bet for clusters ranging from three to 25 symbols.

The Scatter symbol in Gonzo’s Gold also acts as a Wild, substituting for any other symbol. When three or more Scatters land anywhere on the reels, they unlock 10 free spins and an instant payout. Landing three, four, or five Scatters awards 2x, 20x, or 200x your stake respectively. During free spins, three or more Scatters retrigger the feature, providing 10 additional spins and another cash prize.

Throughout free spins, expanding symbols can appear, leading to huge clusters. If two or more adjacent expanding symbols land, they cover an entire reel or row. Once expanded, the cluster awards a bonus win. Thanks to these special functions, slot fans can stack up substantial wins and enjoy an immersive adventure with Gonzo.

Watch Gonzo’s Gold Gameplay

7Book of Gold: Double Chance

Book of Gold: Double Chance

To deliver a thrilling gaming experience, Playson released Book of Gold: Double Chance, a slot inspired by ancient Egypt. Players explore hidden treasures in forgotten tombs while chasing generous wins. The game’s Free Spin feature is activated by its special symbol, and, even better, free spins are re-triggerable, giving you more opportunities to score major rewards.

Book of Gold: Double Chance is played on a five-reel, three-row grid, with 10 fixed paylines awarding prizes for combinations of three or more identical symbols. Although no Wilds are present, the Scatter symbol unlocks the free-spin gameplay. Stakes start at just $0.10, appealing to casual players, while a maximum bet of $100 per spin caters to high rollers.

The slot’s RTP is slightly below average, but many players will appreciate its high volatility, which can produce sizable payouts over time. Of course, high-volatility slots are riskier because they may deliver long stretches of small or no wins. However, the expanding symbols during free spins can generate impressive rewards.

Book of Gold: Double Chance
Software Playson
Release Date 2018
RTP 95.04%
Bet Limits $0.10 – $100
Reel Grid 5×3
Paylines 10 fixed lines
Wilds N/A
Scatters Yes
Bonus Games N/A
Free Spins Yes
Progressive Jackpot N/A
Max Payout 2,000x total bet
Gamble Feature N/A

Book of Gold: Double Chance theme

The regular symbols include the standard playing card values from 10 through A. Matching 10, J, or Q five times on a payline awards 80x your bet per line, while K and A pay 120x for the same combination. Higher rewards come from Egyptian motifs such as the Ankh, Eye of Ra, Horus, and a Pharaoh mask.

One advantage of the high-valued symbols is that they pay even when only two land on a payline. The Pharaoh mask, the most valuable symbol, awards 2,000x your single-line bet for five of a kind. Although the slot lacks a Wild, the Golden Book Scatter both triggers free spins and pays out.

When three or more Scatters land anywhere on the reels, they pay instantly and grant 10 free spins. Before the round begins, two random symbols are selected to become Special Expanding Symbols. Whenever either of these appears in a winning line, it expands to cover the entire reel. Scatters can also appear during the bonus, and three or more award an additional 10 free spins. Free-spin retriggers can occur repeatedly, up to a maximum of 50 spins in a single bonus round.

Although straightforward, Book of Gold: Double Chance remains engaging and potentially lucrative thanks to the expanding symbols in its Free Spins mode. If you enjoy this type of feature, Playson’s slot is well worth a try.

Watch Book of Gold: Double Chance Gameplay

8Hall of Gods

Hall of Gods

Fans of free-spin slots should consider Hall of Gods, a NetEnt game that also grants a shot at a progressive jackpot. The slot tells tales of Norse gods while giving players the opportunity to secure sizeable wins. Symbols spin across five reels, with 20 fixed paylines paying out for three or more identical items.

Although the RTP of 95.3% is below average, Hall of Gods has low volatility, meaning smaller but more frequent wins. This is good news for casual players, who can enjoy regular payouts while still having a chance to land a life-changing progressive jackpot. Beyond the base-game prizes, several bonus features deliver extra winning potential.

Players can adjust both coin value and bet level, which determines the number of coins wagered per line. The minimum stake per spin is $0.20, and the maximum bet is capped at $50.

Hall of Gods
Software NetEnt
Release Date 2013
RTP 95.30%
Bet Limits $0.20 – $50
Reel Grid 5×3
Paylines 20 fixed lines
Wilds Yes
Scatters Yes
Bonus Games Yes
Free Spins Yes
Progressive Jackpot Yes
Max Payout 4,314x total bet
Gamble Feature N/A

Hall of Gods theme

Regular symbols include belongings of the Norse deities: Idun’s apples, Loki’s weapon, Freya’s necklace, Thor’s hammer, and Odin’s ring. Five apple chests pay 25x your bet per line, while five of Loki’s weapons award 50x. The necklace, hammer, and ring pay 75x, 100x, and 120x the single-line stake, respectively.

The gods themselves serve as the high-valued symbols of Hall of Gods, with Odin topping the paytable at 4,000x per line for five. Special icons include Wilds, Bonus symbols, and Scatters. Wilds can substitute for any regular symbol and expand on the middle three reels when part of a win.

Three Bonus Hammers trigger the Bonus Game, where players can win one of three progressive jackpots. Although jackpot prizes are awarded randomly, higher wagers increase your chances.

The Scatter symbol activates the Free Spins feature when it lands three or more times. Players receive 10, 15, or 20 free spins for three, four, or five Scatters, with all wins during the round multiplied by 3x. Additional Scatters during the bonus retrigger the feature, adding the same number of spins.

Watch Hall of Gods Gameplay

9Danger High Voltage Megapays

Danger High Voltage Megapays

Back in 2003, Electric Six stormed the music charts with their disco parody Danger! High Voltage. That humorous yet catchy song later inspired BTG’s slot of the same name. In 2022, BTG revamped the game and launched Danger High Voltage Megapays. If you have tried other BTG slots, you may already know the Megapays feature, which gives players a chance to win one of four progressive jackpots.

The new edition retains the original features, gameplay, and design, but the Megapays mechanic adds extra excitement because a massive jackpot can drop on any spin. The slot uses six reels and offers 4,096 ways to win. The bet limit ranges from $0.25 to $25. Because the game is highly volatile, you may encounter stretches of losses before landing a significant payout, so bankroll management is essential.

Danger High Voltage Megapays
Software Big Time Gaming
Release Date 2022
RTP 96.39%
Bet Limits $0.25 – $25
Reel Grid 6×4
Paylines 4,096 ways to win
Wilds Yes
Scatters Yes
Bonus Games Yes
Free Spins Yes
Progressive Jackpot Yes
Max Payout 4,000x total bet
Gamble Feature N/A

Danger High Voltage theme

Because the slot follows ways-to-win mechanics, you score a win when matching symbols land on at least three adjacent reels starting from the leftmost. The lower-value symbols are the standard playing card values from 9 to A. Six 9s pay 0.4x the total bet, while six As award 1.25x.

Higher-value symbols include a taco, disco ball, golden bell, and a decorated skull (the references make sense once you hear the song’s lyrics). Among regular symbols, the skull pays the most at 25x the total bet for six on adjacent reels.

The slot features two types of expanding Wilds. Wild Fire and Wild Electricity can appear on all reels except the first and last; Wild Electricity also applies a 6x multiplier to wins. A heart-shaped Scatter labeled “My Desire” triggers the Free Spins feature. When three or more Scatters land, you can choose between High Voltage or Gates of Hell free spins.

Gates of Hell awards seven free spins, during which a random symbol is chosen to become a Sticky Wild and remains locked for the entire round. If a reel collects three or more Sticky Wilds, you receive three additional spins. High Voltage provides 15 free spins featuring a special High Voltage Wild that can land on reels 2–5 and apply multipliers of up to 66x. Landing three or more Scatters during either bonus retriggers 15 extra spins.

The Megapays feature can activate randomly on any spin. When it does, a random symbol becomes the Megapays icon. A new screen appears, and symbols begin to drop. The round continues as long as the designated symbol lands at least once per spin. Collecting four guarantees the Mini jackpot, while 8–11, 12–14, and 15+ award the Midi, Major, and Mega jackpots, respectively.

Watch Danger High Voltage Gameplay

10Buffalo King

Buffalo King

Venture across the North American prairies with Buffalo King. This Pragmatic Play slot offers the chance to collect sizeable payouts as you encounter majestic wildlife, while the built-in bonus features can further amplify your wins.

Buffalo King uses a six-reel, four-row grid that provides 4,096 ways to win on every spin. Instead of traditional paylines, you are paid when identical symbols land on adjacent reels. Bet sizes range from $0.40 to $60. Although the upper limit may feel modest to some high rollers, remember that Buffalo King is a high-volatility slot, so long losing streaks are possible before you strike a big win.

Buffalo King
Software Pragmatic Play
Release Date 2019
RTP 96.06%
Bet Limits $0.40 – $60
Reel Grid 6×4
Paylines 4,096 ways to win
Wilds Yes
Scatters Yes
Bonus Games N/A
Free Spins Yes
Progressive Jackpot N/A
Max Payout 93,750x total bet
Gamble Feature N/A

Buffalo King theme

As the reels spin, you will see playing card values 9, 10, J, Q, K, and A. These are the low-paying symbols, returning between 2x and 3x the total bet when six land consecutively. The high-valued symbols include a moose, wolf, lynx, eagle, and of course the buffalo. Unsurprisingly, the buffalo tops the paytable, awarding 7.5x your total bet for six on adjacent reels.

The slot also contains a Wild that substitutes for regular symbols and appears on all reels except the first. The other special icon is a golden Bonus coin, which activates the Free Spins round when three or more land simultaneously.

The number of free spins depends on the number of Bonus symbols that trigger the feature. Three, four, five, or six Bonus coins award 8, 15, 25, or 100 free spins, respectively. During the round, Wilds can carry random multipliers of 2x, 3x, or 5x. If multiple Wilds form part of a win, their multipliers combine. Two or more Scatters during the bonus retrigger between five and 100 additional spins.

Thanks to its re-triggerable bonus and lofty max win of 93,750x your stake, Buffalo King can deliver monumental payouts, making it well worth a spin.

Watch Buffalo King Gameplay

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Find the answers of questions people asked so far:

Dan Mary

What happens if I make a larger bet per spin when using free spins?

Asked by: Mary | Asked on: 2023-05-31
Answered by: Dan | Answered on: 2023-06-01

If you redeem free spins through a casino promotion, each spin will have a preset value. When you open the slot to use your free spins, you cannot increase the bet size. After you finish the bonus spins and start working on the wagering requirements, you must stay within the maximum bet outlined in the promotion’s Terms and Conditions. If you bet more per spin while completing the wagering, most casinos will remove all bonus-related funds from your account. Therefore, read the Terms and Conditions of any free spins offer carefully before you redeem it, and follow all rules to keep your bonus winnings.

Dan Douglas

Can I increase my bet size when the free spins are triggered as a bonus feature in a slot?

Asked by: Douglas | Asked on: 2023-06-08
Answered by: Dan | Answered on: 2023-06-08

Most slots include a disclaimer in the rules section stating that free spins are played at the same bet size as the spin that triggered them. Because of this, you cannot increase the potential payout of winning combinations during the free spins feature. For that reason, consider your bet size beforehand, as triggering free spins with a very low stake will lead to a small bonus prize. Additionally, many slots award extra features during free spins, so it may be worth betting a little more if you are waiting for that lucky spin to unlock them.