DiscoWin Slots, RTP and Bonus Buy Features

The DiscoWin slots collection includes titles such as Book of Dead, 9 Coins™, Rise of Merlin, Pirate Barrels and Fist of Destruction. These games differ in their published return-to-player figures, volatility ratings and availability of Bonus Buy features. Understanding those differences can help you compare the slot selection before opening a particular title.
Book of Dead has a published RTP of 96.21% and high volatility, while 9 Coins™ is listed at 96.06% with medium volatility. Rise of Merlin has a published RTP of 96.58% and is also classified as high volatility. RTP describes a theoretical long-run return, not a guaranteed result from an individual spin or gaming session.
Bonus Buy availability also varies between titles. It is listed as available in 9 Coins™, but unavailable in Book of Dead and Rise of Merlin. Our slots can be explored through the casino catalogue, including the browser-based mobile version, without a required application download. Check the current game information before playing, as features and availability are specific to each title.
Browsing DiscoWin Slots and Featured Titles
DiscoWin slots form one of the main categories in our casino games collection, alongside live casino and table games. The slot selection brings together titles from different developers, with variations in themes, reel structures, bonus mechanics and published game characteristics.
The Casino section provides the main route into the games catalogue. From there, you can explore the available slots and check the information associated with individual titles. The site also describes a Top Games selection, offering another way to discover games highlighted within the catalogue.
Although featured titles can provide a useful starting point, their inclusion does not mean they have the highest RTP, the largest payouts or the greatest number of players. A featured collection is not the same as a verified ranking of profitable games.
Featured Slots and the Top Games Selection
The published featured games collection includes several recognisable slot titles:
- 9 Coins™ — a Wazdan slot listed with medium volatility and an available Bonus Buy feature.
- Rise of Merlin — a Play’n GO title with high volatility and a published RTP of 96.58%.
- Book of Dead — another Play’n GO slot, listed with high volatility and no Bonus Buy option.
- Legacy of Dead — a named title in the featured selection.
- 3 Pots Riches: Hold and Win — a featured title associated with the Hold and Win mechanic.
These examples show some of the different games presented by DiscoWin. Other published slot information also covers Pirate Barrels and Fist of Destruction, both of which have their own RTP figures, volatility classifications and Bonus Buy details.
Top Games is a separate selection described on the website. Its contents should be checked in the current catalogue rather than assuming the five featured examples always appear there in the same order.
If a particular slot is not displayed when you visit, check the current selection and game availability. Being named in a published featured collection does not guarantee that a title will remain accessible in every session.
For a broader view of slots, live tables and the featured catalogue, explore the casino game categories before choosing a title.
When selecting a game, it is worth looking beyond the name or theme. RTP, volatility, the provider and the presence of optional features can all help explain how one title differs from another.
Published RTP and Volatility of Five Slots
DiscoWin provides published game characteristics for five named slots: Book of Dead, 9 Coins™, Rise of Merlin, Pirate Barrels and Fist of Destruction. Their information includes the software provider, return to player, volatility and whether Bonus Buy is listed as available.
These figures allow for a direct comparison, but they should be interpreted correctly. A higher published RTP does not guarantee a better outcome in an individual session, and a volatility rating does not predict when a win will occur.
| Game | Provider | Published RTP | Volatility | Bonus Buy |
|---|---|---|---|---|
| Book of Dead | Play’n GO | 96.21% | High | No |
| 9 Coins™ | Wazdan | 96.06% | Medium | Yes |
| Rise of Merlin | Play’n GO | 96.58% | High | No |
| Pirate Barrels | Booming Games | 96.00% | Medium-high | Yes |
| Fist of Destruction | Hacksaw Gaming | 96.11% | High | Yes |
Rise of Merlin has the highest published RTP among these five examples at 96.58%. That is a comparison within the listed selection, not a claim that it has the highest RTP across the entire DiscoWin catalogue or offers the greatest chance of a profitable session.
The table also shows that Bonus Buy is not universally available. Three titles list the feature as present, while two do not. The actual cost and rules of any available feature must be checked within the relevant game.
Book of Dead, 9 Coins and Rise of Merlin
Book of Dead is supplied by Play’n GO and has a published RTP of 96.21%. Its volatility is classified as high, and the published game comparison lists Bonus Buy as unavailable.
Book of Dead belongs to the book-style slot category associated with expanding-symbol mechanics. However, its individual bonus rules should be checked directly rather than assuming every book-themed title follows an identical structure.
9 Coins™ is attributed to Wazdan. It has a published RTP of 96.06%, medium volatility and a Bonus Buy option listed as available.
The medium-volatility classification distinguishes 9 Coins™ from the two high-volatility Play’n GO titles in this comparison. It does not mean losses are impossible or that the game will produce more frequent winning results during a particular session.
Rise of Merlin, also developed by Play’n GO, has a published RTP of 96.58% and high volatility. Its Bonus Buy status is listed as unavailable.
Although Book of Dead and Rise of Merlin share a provider and volatility classification, their RTP values differ. That illustrates why games from the same developer should be assessed individually rather than treated as interchangeable.
Published figures are useful reference points, but the current game’s information should remain the basis for understanding the version available to play. No RTP figure can guarantee how much of a stake will be returned during a particular session.
Pirate Barrels and Fist of Destruction
Pirate Barrels is attributed to Booming Games. Its published RTP is 96.00%, and it has a medium-high volatility classification. Bonus Buy is listed as available.
The medium-high classification places Pirate Barrels in a different volatility category from 9 Coins™, which is medium, and from the high-volatility titles in the comparison.
Fist of Destruction is supplied by Hacksaw Gaming. It has a published RTP of 96.11%, high volatility and an available Bonus Buy feature.
Although both Pirate Barrels and Fist of Destruction list Bonus Buy as available, that does not mean their bonus features operate in the same way. The purchase cost, feature structure and possible outcomes are determined by the individual game rules.
Neither title’s published RTP should be interpreted as a promise of winnings. A game can have a theoretical return percentage close to another title while behaving differently during play because of its volatility and feature design.
Before using either game, check its current information and any instructions associated with optional features. A Bonus Buy option changes how a feature may be accessed, but it does not guarantee a profitable outcome.
Understanding RTP and Slot Volatility
RTP and volatility are two different characteristics of slot games. Both can be useful when comparing titles, but neither provides a reliable prediction of the next spin or an individual gaming session.
RTP describes a theoretical return percentage over a very large number of plays. Volatility describes variation in game outcomes and payout patterns. A game may have a relatively high published RTP while still being classified as high volatility.
What Return to Player Actually Describes
Return to player, usually shortened to RTP, is expressed as a percentage. It represents a theoretical long-run measure built into a game’s mathematical design.
For example, Book of Dead has a published RTP of 96.21%. This does not mean that someone wagering £100 will necessarily receive £96.21 back. Their actual result could be substantially different, including the possibility of losing the entire amount wagered.
The same principle applies to Rise of Merlin at 96.58%, Fist of Destruction at 96.11%, 9 Coins™ at 96.06% and Pirate Barrels at 96.00%.
The percentages can be compared as published game characteristics, but they should not be used as a short-term payout calculator. An individual session does not have to produce results close to the theoretical RTP.
It is also important to check the RTP information shown for the current game. Published values may need to be confirmed against the configuration available through the casino.
Choosing a title because it has a higher stated RTP does not remove the possibility of losses. The mathematical return figure is not a guarantee that money wagered will be recovered.
High, Medium and Medium-High Volatility
Volatility describes how a slot’s results may vary. It is separate from RTP and should not be used as a measure of guaranteed profitability.
The five published examples include three volatility classifications:
- High volatility — Book of Dead, Rise of Merlin and Fist of Destruction.
- Medium volatility — 9 Coins™.
- Medium-high volatility — Pirate Barrels.
A high-volatility game can have a different distribution of winning and losing outcomes from a medium-volatility title. However, that does not establish when a bonus round will occur or whether any particular spin will pay.
Medium volatility should not be interpreted as a guarantee of smaller losses. Equally, high volatility should not be taken as evidence that a game will eventually produce a large win.
RTP and volatility therefore answer different questions:
- RTP describes the theoretical long-run proportion of stakes returned by the game.
- Volatility describes characteristics of variation in the game’s payout behaviour.
Neither changes the fact that every gaming session involves uncertainty. Understanding these values can help you recognise differences between titles, but it cannot make the outcomes predictable.
Bonus Buy Availability in DiscoWin Slots
Bonus Buy is an optional feature available in certain slot games. Where offered, it provides a game-specific way to purchase access to a bonus feature rather than waiting for that feature to occur through ordinary play.
Not every DiscoWin slot lists this option. The published comparison distinguishes three titles with Bonus Buy available and two without it.
Bonus Buy should also not be confused with a slot’s normal bonus rounds. A game can contain bonus mechanics even when purchasing direct access to them is not offered.
Slots That List a Bonus Buy Option
Three of the five published slot examples list Bonus Buy as available:
- 9 Coins™ — Wazdan, with 96.06% published RTP and medium volatility.
- Pirate Barrels — Booming Games, with 96.00% published RTP and medium-high volatility.
- Fist of Destruction — Hacksaw Gaming, with 96.11% published RTP and high volatility.
The published Yes status identifies the feature as available in the game comparison. It does not specify the purchase price, the rules of the bonus round or whether the same feature will always be presented under every game configuration.
Before using Bonus Buy, review the current game’s instructions. The price of feature access, the possible outcomes and any restrictions should be established from the actual title rather than assumed from another slot.
Purchasing a feature does not guarantee winnings. It may change how the feature is entered, but the outcome remains uncertain.
Slots Without a Listed Bonus Buy Option
Book of Dead and Rise of Merlin are the two titles in the published comparison that list Bonus Buy as unavailable.
Both are supplied by Play’n GO and classified as high volatility, although their RTP figures differ. Book of Dead is listed at 96.21%, while Rise of Merlin has a published RTP of 96.58%.
The absence of a Bonus Buy option does not establish that these games have no bonus features. It means the particular feature-purchase option is not listed as available in the published comparison.
Bonus features, where present, operate according to the rules of the individual game. Do not assume that a missing purchase option can be enabled through a promotional code or another unsupported action.
The practical distinction is straightforward:
- Bonus Buy available — the published game information lists an optional feature-purchase function.
- Bonus Buy unavailable — no such purchase option is listed for the title in the published comparison.
Neither status determines the profitability of a game. A slot without Bonus Buy can still have its own features, while a slot offering the option does not guarantee a favourable result when it is used.
Megaways, Hold and Win and Expanding Symbols
DiscoWin’s slot descriptions refer to several game mechanics, including Megaways, Hold and Win and expanding symbols. These terms describe how particular games arrange reels, trigger special rounds or use symbols during bonus features.
They are not interchangeable. Each mechanic has its own purpose, and the way it operates depends on the specific slot.
Megaways and Changing Reel Structures
Megaways is a slot mechanic associated with variable reel arrangements and changing numbers of possible winning combinations.
Instead of relying on a single fixed structure, a Megaways game may change the number of symbol positions or potential ways to win between spins. The exact layout and rules depend on the individual title.
The presence of Megaways in the slot descriptions does not mean every DiscoWin slot uses the mechanic. Nor does a larger number of possible combinations guarantee a winning outcome.
If you are interested in this style of game, check the current slot information for its exact reel structure and available features. Do not assume that two Megaways titles necessarily have identical gameplay or RTP values.
Hold and Win Bonus Mechanics
Hold and Win is another named slot mechanic. DiscoWin’s featured collection includes 3 Pots Riches: Hold and Win, providing an example of a title associated with this type of feature.
Hold and Win generally describes a bonus format in which qualifying symbols or values may remain in place while a special round continues under the game’s rules.
However, individual Hold and Win games can implement their bonus features differently. The qualifying symbols, number of rounds and reward structure should be checked for the specific title.
Hold and Win is also different from Bonus Buy. The presence of a Hold and Win feature does not automatically establish that players can purchase immediate access to it.
Similarly, a slot may offer Bonus Buy without following the same mechanics as 3 Pots Riches: Hold and Win. The name of a bonus feature and the availability of a feature-purchase option describe separate characteristics.
Expanding Symbols in Book-Style Slots
Expanding symbols are associated with certain book-style slot mechanics. In these games, a designated symbol may expand across positions during a qualifying feature according to the game’s rules.
Book of Dead and Legacy of Dead are both named in the featured collection. However, a similar theme or title structure should not be treated as proof that every book-style slot uses identical bonus conditions.
For example, the published comparison confirms RTP, volatility and Bonus Buy status for Book of Dead, but it does not establish the same values for Legacy of Dead.
Before selecting a slot based on its mechanics, review the following:
- Identify the exact game title and its developer.
- Read the description of its reel structure and bonus features.
- Check the published RTP where that information is available.
- Review the volatility classification.
- Confirm whether Bonus Buy is offered for the selected title.
- Read the game’s own instructions before using its features.
These checks help distinguish the characteristics of individual slots without relying on assumptions based on their names or themes.
No slot mechanic makes an outcome certain. Megaways, Hold and Win and expanding symbols may change how a game operates, but they do not remove the possibility of losing money.
Slot Providers and Their Published Titles
DiscoWin lists games from several software suppliers. Different developers create their own slot themes, mechanics and mathematical configurations, so the provider can be useful when comparing familiar titles.
Five specific games have confirmed supplier associations in the published slot comparison: Book of Dead, 9 Coins™, Rise of Merlin, Pirate Barrels and Fist of Destruction.
Play’n GO, Wazdan and Booming Games
Play’n GO is the named provider of Book of Dead and Rise of Merlin. Both games are listed with high volatility, but they have different published RTP values.
Book of Dead has an RTP of 96.21%, while Rise of Merlin is listed at 96.58%. Neither title lists Bonus Buy as available in the published comparison.
Wazdan is the supplier of 9 Coins™. The game has a published RTP of 96.06%, medium volatility and an available Bonus Buy option.
Booming Games is attributed as the developer of Pirate Barrels. This title has an RTP of 96.00%, medium-high volatility and Bonus Buy listed as available.
These differences illustrate why a slot’s provider should not be used as a substitute for checking its individual characteristics. Games from the same supplier may have different RTP, volatility and feature conditions.
Hacksaw Gaming and Other Named Suppliers
Hacksaw Gaming is the confirmed provider of Fist of Destruction. The game is listed with an RTP of 96.11%, high volatility and Bonus Buy availability.
The broader DiscoWin casino catalogue also names several other software suppliers:
- Pragmatic Play
- NetEnt
- Evolution
- No Limit City
- Playson
- Spinomenal
- Onlyplay
- PG Soft
- 3 Oaks
These are suppliers named in the wider casino offering. Their inclusion does not mean every game developed by each company is available in the slots collection.
It is also important not to attribute an individual slot to a provider without a confirmed relationship. The published comparison identifies the developers of the five detailed examples, but other titles should be checked against their own game information.
A developer’s name may help you recognise a game style or locate a familiar title, but the rules, available features and published statistics remain specific to each game.
Using Free Spins and Accessing Slots on Mobile
DiscoWin’s welcome package includes free spins connected to the first qualifying deposit. Our casino also supports browser-based access on smartphones and tablets, allowing members to explore slots without installing a separate application.
Free-spin eligibility and mobile game availability are different considerations. A game may be accessible through a browser without necessarily displaying an available promotional spin allocation for a particular account.
Welcome Free Spins Across the Slot Selection
The advertised first-deposit welcome offer includes 100 free spins, distributed as ten spins per day over ten days. These spins are described as available across the slot selection.
The promotion also states that no minimum bet requirement applies to the first-deposit free spins themselves. This should not be confused with the monetary value of each promotional spin, which needs to be checked against the current offer or game information.
The daily distribution matters because the advertised 100 spins are not described as one immediate allocation. The number available on a particular day may depend on which daily batches have become available and whether previous spins have already been used.
When choosing a slot for promotional play, check that the relevant free-spin allocation is active and available for the selected game. A title appearing in the slots catalogue does not automatically establish that every promotional allocation is currently usable there.
To understand the daily allocation and conditions attached to the first-deposit reward, review the welcome free spins rules before selecting an eligible slot.
The presence of free spins does not guarantee winnings, and any conditions affecting their use or associated rewards should be reviewed before play.
Slots and Live Tables on Different Devices
DiscoWin supports browser-based mobile access on smartphones and tablets. The responsive website provides access to casino categories, including slots and live casino, without requiring an application download.
To explore the available games from a mobile device, follow these checks:
- Open the DiscoWin website in a compatible mobile browser.
- Use the available Casino navigation to locate the games collection.
- Choose slots or another relevant game category.
- Select a title from the current selection.
- Review the game’s instructions and available features.
- If you intend to use free spins, confirm that the allocation is active and eligible for the selected slot.
Mobile browser access does not guarantee that every title will behave identically on every device. Game availability and compatibility should be checked individually.
Slots and live casino titles also use different formats. Slots focus on reel-based gameplay and slot-specific features, while live casino includes roulette, baccarat and other table games.
If you prefer roulette, baccarat or another table format, the live casino game selection explains those titles separately from the slots catalogue.
There is no requirement to install an unfamiliar application simply because a particular slot does not load through a browser. If a game is unavailable, check the current instructions and seek support if necessary.
When a Slot or Bonus Feature Is Unavailable
If a DiscoWin slot is missing, does not open or fails to display an expected feature, begin by identifying the exact game and the action you were trying to complete. A missing title, unavailable Bonus Buy option and unrecognised free-spin allocation are different situations.
Check the current game information before assuming that a technical problem has occurred. If the available instructions do not explain the issue, DiscoWin advertises website-based live chat support 24 hours a day, seven days a week.
A Featured Slot Is Missing From the Catalogue
If a previously featured game such as Book of Dead, 9 Coins™ or Rise of Merlin does not appear in the current selection, check the exact title and the available slots category.
A game being named in a featured collection does not guarantee its permanent availability. The current catalogue should be used to establish whether a particular title can presently be accessed.
The Top Games selection should also not be treated as a complete or permanent list of all available slots. A title may be listed elsewhere in the catalogue or may not currently be available.
If the game’s status remains unclear, contact support with its exact name. Do not assume that an unavailable title has been permanently removed or that the site is experiencing a general outage.
The Bonus Buy Option Does Not Appear
If you expected a Bonus Buy option but cannot find it, first check the published feature status for the selected game.
9 Coins™, Pirate Barrels and Fist of Destruction are listed with Bonus Buy available. Book of Dead and Rise of Merlin are listed without that option.
If you are playing a title for which Bonus Buy is listed as unavailable, the absence of the feature is consistent with the published comparison. There is no reason to assume that a hidden setting or promotional code should enable it.
If a game lists Bonus Buy as available but the option is not displayed, review the current game instructions and configuration. Availability can depend on the particular version or conditions being presented.
Contact support if the discrepancy remains unexplained. Provide the game title and describe the feature you expected to see, without assuming that a technical failure has already been confirmed.
Free Spins Are Not Available in a Selected Slot
The first-deposit welcome spins are described as usable across slots, but their availability still depends on the applicable promotion conditions and the account’s current allocation.
If free spins do not appear in a selected game, confirm that the qualifying first-deposit promotion is active and that the expected daily batch is available.
The advertised schedule provides ten spins per day over ten days. This means an account may not have all 100 spins available simultaneously.
Next, review the selected game’s current information and any conditions attached to the promotional spins. Do not assume that every title accepts every allocation at every moment simply because the general offer refers to the slot selection.
If the issue remains unclear, contact support with the game title, qualifying deposit information and expected spin batch. Avoid making additional deposits solely to try to activate a missing reward.
A Slot Does Not Load on Your Device
If a slot appears in the catalogue but does not open, review any message displayed by the game or website. The cause cannot be established from the loading failure alone.
Confirm that you have selected the intended title and that it is currently available. If you are using a mobile device, identify the browser and device involved.
DiscoWin supports browser-based mobile gaming, so a separate application is not required for the described service. An unfamiliar download should not be treated as the default solution to a game that does not load.
If the problem continues, contact website support and provide:
- The exact slot title.
- The device and browser being used.
- The action that fails when opening the game.
- Any visible message or instruction.
- Whether the problem concerns Bonus Buy or a free-spin allocation.
Do not disclose passwords, authentication codes or full payment card details when reporting a game-access problem. These details are unnecessary for explaining which title or feature is unavailable.
Support can help clarify a game’s current availability or the relevant account conditions, but a specific restoration time or technical outcome should not be assumed.
FAQ – DiscoWin Slots Questions
What RTP Does Book of Dead List?
Book of Dead has a published RTP of 96.21%. This is a theoretical long-run return measure and does not guarantee the result of an individual session.
How Volatile Is 9 Coins?
9 Coins™ is listed with medium volatility. This classification describes the game’s payout characteristics rather than guaranteeing smaller losses or particular winning results.
Does Pirate Barrels Offer a Bonus Buy?
Yes. Pirate Barrels is listed with Bonus Buy available. The cost and conditions of using the feature should be checked in the current game information.
Who Supplies Fist of Destruction?
Fist of Destruction is attributed to Hacksaw Gaming. It has a published RTP of 96.11%, high volatility and Bonus Buy listed as available.
Which Listed Slot Has 96.58% RTP?
Rise of Merlin has a published RTP of 96.58%. It is attributed to Play’n GO and classified as high volatility.
What Volatility Applies to Rise of Merlin?
Rise of Merlin is listed with high volatility. This does not guarantee larger winnings or predict the outcome of any particular spin.
Can Book of Dead Use Bonus Buy?
No. Book of Dead is listed without a Bonus Buy option. That does not mean the game has no bonus features; it means direct feature purchase is not listed as available.
Are Megaways Mechanics Discussed at DiscoWin?
Yes. Megaways is among the slot mechanics described by DiscoWin, alongside Hold and Win and expanding-symbol features. Not every slot should be assumed to use Megaways.
Which Slot Titles Appear Under Top Games?
DiscoWin describes a Top Games selection and separately names featured titles including 9 Coins™, Rise of Merlin, Book of Dead, Legacy of Dead and 3 Pots Riches: Hold and Win. Check the current catalogue to establish which titles are presently displayed in Top Games.
Where Can I Inspect Eligible Free-Spin Slots?
Review the current slots collection and the conditions attached to the first-deposit free-spin promotion. The welcome spins are described as available across slots, but the eligibility of a specific game and daily allocation should be checked before use.
