Penny Slot Machines in the UK: Stakes and Payouts

Penny slots are defined by their lowest available spin cost, while paylines, RTP and random outcomes affect how play and payouts work.

What Makes a Slot a Penny Slot?

A penny slot is identified by its minimum cost per spin, not by the size of its largest possible prize or by the appearance of its symbols. A practical definition used in a specialist review is a slot whose lowest available spin costs no more than 20p. The word “penny” therefore describes the entry-level stake rather than a promise that every spin costs exactly 1p.

This distinction matters because a slot’s price is normally built from several line stakes. The game may show a value beside each payline, while the total wager is calculated by adding the amount placed on all active lines. If you select a low value per line but play many lines, the complete spin can cost considerably more than the label suggests.

How line stakes create the spin cost

The basic calculation is:

stake per line × number of active paylines = total cost of one spin

For instance, a game with 20 active paylines and a 1p stake on each line costs 20p for that spin. The amount is not determined by the line value alone. The number of lines selected is equally important.

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The same principle applies when the line stake changes. A game with fewer active lines may cost less even if the amount assigned to each line is higher. Conversely, selecting every available line can take the total above the level normally associated with a penny slot. When comparing games, check the lowest complete-spin cost rather than reading only the smallest denomination shown in the controls.

Some interfaces present the total stake prominently; others display line value, active lines and total wager in separate controls. Before starting a session, identify which figure represents the amount deducted for one spin. That is the figure used to decide whether the slot meets the practical penny-slot definition.

What “penny” does and does not mean

The term does not mean that the game has a statutory price of 1p, nor does it guarantee that every stake setting remains within the low-cost range. A penny slot can offer several betting levels. Its classification comes from the minimum setting: if the cheapest available spin is 20p or less, it fits the practical definition described above.

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The term also does not describe the result of a spin. A low-cost spin can win, lose or return less than the amount wagered. The label refers only to the amount required to take part at the lowest setting. It says nothing by itself about how often a winning combination appears, how large a payout can be, or how the game produces its outcomes.

Checking the maximum stake

The maximum bet is a separate question from whether a game qualifies as a penny slot. A slot may start at a low minimum and still permit higher total wagers when you increase the line value, activate additional lines or use another stake control. To find the maximum, inspect the highest total wager the interface allows, not merely the smallest denomination attached to a line.

For online slots in the UK, there is no statutory minimum stake. This means the law does not define a universal lowest price at which every game must begin. The practical penny-slot description is therefore a way to classify low-entry games by their available minimum spin cost, rather than a legal category.

When assessing any slot, record three separate details: the cheapest complete spin, the total wager at your chosen setting and the highest permitted wager. Keeping these figures separate prevents a common mistake—assuming that a 1p line automatically means a 1p spin. The calculation must include every active payline and any other stake component shown by the game.

How Penny Slots Work: Stakes, RTP and Random Outcomes

A penny slot is still governed by the same core mechanism as any other digital slot. Each spin is an event produced by software, and the amount you stake determines the financial size of that event. It does not tell the game which result to choose.

How the random number generator determines a result

Slot outcomes are produced by a random number generator, or RNG. The RNG generates a sequence of values that cannot be predicted from the previous spin. The slot’s game software then maps the relevant value to an outcome on the reels, symbols, paylines and any applicable feature rules.

The visible reels are a presentation of the result, not a mechanical process that gradually becomes due to stop. Each spin is assessed independently within the rules of the game.

The visible reels are therefore a presentation of the result, not a mechanical process that gradually becomes due to stop. A losing spin does not make a win more likely, and a series of wins does not make the next spin more likely to lose. Each spin is assessed independently within the rules of the game.

For online slots, the RNG used to determine outcomes must be certified by an approved testing laboratory. That testing examines whether the system behaves randomly and whether its output corresponds with the game’s designed mathematical model. Certification does not predict a particular result for you. It verifies the process used to produce results.

The game rules also determine how an RNG result becomes a payout. A particular value may correspond to a losing combination, while another may produce a line win, a feature trigger or a larger prize. The software applies the same defined mapping on every spin. Changing the stake does not rewrite that mapping.

What RTP measures

Return to Player, written as RTP, is a long-run statistical measure. It is the percentage of all money wagered on a slot that the game is designed to return over its lifetime.

Suppose a slot has an RTP of a particular published percentage. That figure describes the mathematical relationship between total stakes and total returns across a very large number of spins. It does not mean that each player receives that percentage back, nor does it mean that every short session will resemble the stated figure.

Individual results can be far above or below the RTP. A player may receive nothing on several spins, or a single result may produce a substantial return relative to the stake. Those short-term variations are normal consequences of random outcomes. RTP becomes meaningful only when considering the game’s behaviour across a sufficiently large volume of play.

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The word “lifetime” refers to the game’s aggregate theoretical performance, not to the length of your account or session. Your own results form only a small sample of the total spins used to illustrate the RTP concept. A short sample can differ sharply from the long-run expectation without indicating that the RNG has changed.

RTP and the house edge

The house edge is the mathematical share retained by the game over the long run. It is the complement of RTP: if a game returns a stated proportion of wagers in its mathematical model, the remaining proportion represents the house edge.

This is a property of the game, not of the size of your wager. At penny stakes, the house edge is identical to the house edge at any other stake for the same game and RTP configuration. Betting less reduces the amount exposed on each spin; it does not make the underlying mathematics more favourable.

For instance, reducing a stake reduces both the possible cost of a losing spin and the monetary value of a winning result calculated from that stake. The ratio between money wagered and the game’s long-run theoretical return remains unchanged. A smaller stake changes the scale of the outcome, not the probability model behind it.

Why the stake does not alter RTP

RTP is set by the game developer. It does not change merely because you select a lower or higher stake level. The stake is an input to the payout calculation, while the game’s probability distribution and designed return are part of the slot’s mathematical configuration.

This distinction matters when comparing penny slots. A low-cost spin should not be treated as a different mathematical product simply because less money is placed on it. If the same game and the same RTP configuration are used, the expected return proportion remains the same at a penny stake as at another permitted stake.

The result of one spin is still random, and the amount returned on that spin can be zero or a multiple of the stake according to the game’s rules. RTP cannot tell you which outcome will appear next. It can only describe the long-run relationship between the total money put into the game and the total money the model is designed to return.

Free play and real-money play do not change this underlying logic either. The RNG still selects outcomes according to the game’s rules, while RTP remains a long-run characteristic of the slot. The difference is what those outcomes mean financially to you, not how the game’s probability model operates.

Playing Penny Slots Online in the UK

An online slots lobby is the place to identify games that can be played at a penny-level stake. The useful information is not the game’s title or artwork, but the figures shown beside it and in its information panel. Before opening a game, look for its minimum stake, maximum stake and Return to Player (RTP). UK-licensed operators must make these details available for every slot in the lobby. A specialist review may describe a lobby differently, but the game interface itself should provide the figures needed to assess the stake.

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Finding the minimum stake

Use the lobby’s filters, search field or sorting controls to narrow the selection, then open the information panel for each candidate. Some interfaces show a minimum stake directly on the game tile; others reveal it only after you select the game or open its paytable. The important value is the minimum cost of one complete spin, not the smallest denomination visible on a reel or in a coin selector.

This distinction matters because a game can display a one-penny coin value while requiring several coins or lines for a full spin. If the interface shows a minimum stake of 20p, that is the amount needed for the cheapest permitted play. If it shows a higher figure, it does not meet a penny-stake definition based on the minimum spin cost, even if one of its selectable values is 1p.

Do not infer the minimum from a promotional label such as “penny” or from a thumbnail. The label may be informal, while the stake control determines what you can actually wager. Check the paytable and stake settings after the game loads, because the initial setting may not be the minimum available option.

Reading the stake controls

Inside an online slot, the stake panel normally lets you adjust the value assigned to a line, reel combination or other game unit. The total stake is the amount charged when you press the spin button. It may change when you alter the number of active lines, the coin value or another stake setting.

The display should make the total clear before the spin is submitted. Read the amount next to the spin control rather than relying on the selected denomination. If you reduce the coin value but leave the number of active lines unchanged, the total may remain above the amount you intended. Conversely, selecting fewer lines can reduce the total while also changing which winning combinations are active.

DO

• Identify the minimum cost of one complete spin
• Check the total wager after adjusting lines and coin values
• Verify the RTP for the specific version of the game being played

DON’T

• Assume a 1p line automatically means a 1p spin
• Rely on promotional labels like “penny” without checking controls
• Assume a successful free-play run predicts real-money results

For real-money penny slots online in the UK, the balance should decrease by the displayed stake when the spin begins. A practice mode may show credits rather than pounds, so do not assume that its balance behaviour represents a real-money account. The stake control is still useful for learning the interface, but the monetary meaning comes from the real-money display and the operator’s stated terms.

Applying the UK stake limits

The legal limit is separate from the game’s minimum. A slot may permit a low starting stake and also offer higher settings, but the maximum stake per online slot game cycle in the UK is £2. The game cycle is the complete unit of slot play initiated by one spin, including any continuation that forms part of that cycle.

For customers aged 25 and over, the maximum permitted stake per online slot game cycle is £5. For customers aged 18 to 24, it is £2. The relevant age band is applied to the account, not selected casually in the game window. A game or interface cannot lawfully use a higher setting merely because that setting appears in its software.

This makes the maximum-stake field worth checking even when you intend to play at the minimum. It confirms the range offered by that game and helps you distinguish the game’s own settings from the limits that apply to your account. The displayed maximum should not be treated as a target stake; it is simply the upper end of the available range subject to the applicable rules.

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Checking RTP in the lobby

RTP is another figure that should be visible in the lobby or game information panel. It represents the proportion of all money wagered that the slot is designed to return over its lifetime. It does not describe the result of the next spin, the result of one session or the amount returned to one player.

When comparing online penny slot games in the UK, record the RTP shown for the exact version you are about to play. A game title alone is not enough if the interface offers more than one configuration or if the displayed information changes after loading. UK Gambling Commission rules require operators to make RTP information available, and the value shown in the game interface should correspond to the version being played.

The RTP figure does not tell you whether the minimum stake is available on every feature of the game. Check both fields: RTP answers a long-run return question, while the minimum-stake field answers an entry-cost question. A game with a low minimum may still have a different RTP from another game with the same minimum. Conversely, a higher minimum does not imply a higher RTP.

Confirming information before a real-money spin

Before depositing or starting real-money play, inspect the game information in this order:

1. Minimum stake: confirm the cheapest complete spin, rather than a denomination shown inside the control.
2. Maximum stake: check the stated upper limit and keep it separate from the legal age-based limit.
3. RTP: note the percentage for the version currently loaded.
4. Total-stake display: adjust the controls and verify the amount that will be charged for one spin.
5. Account age category: make sure the applicable maximum is clear for the account holder.
6. Paytable and rules: check how the game defines a spin and whether an additional feature forms part of the same cycle.

If a figure is difficult to locate, do not substitute an assumption based on the game’s name, graphics or a third-party description. Return to the lobby information, the paytable or the operator’s help panel. The displayed figures are the relevant reference for the interface you are using.

Identity and account access

A remote licensee serving Great Britain must obtain information establishing your identity before you gamble. This means the account process can require identity details or checks before a real-money spin is available. It is not an optional game setting and cannot be bypassed by opening the slot directly from a device.

The same account records determine which stake limit applies. Therefore, the amount shown by a game control is not the only restriction: the operator must apply the applicable UK limit to the customer and the game cycle. If the account has not completed the required identity process, the correct action is to complete the operator’s stated checks rather than attempt to find another route into real-money play.

Attention If the account has not completed the required identity process, you must complete the operator’s stated checks rather than attempt to find another route into real-money play.

A clear lobby reduces the task to measurable checks: identify the minimum total stake, read the maximum, verify the RTP and confirm the amount displayed before each spin. That process lets you assess online penny slots in the UK without confusing a one-penny denomination with a one-penny spin or treating a long-run statistic as a prediction for an individual result.

Penny Slots at UK Online Casinos

A casino adds an operator and a regulatory framework around the penny slot itself. The game remains software supplied to the casino, but access to it, account operation and real-money play are handled by the operator. That distinction matters when you compare penny casino slots in the UK: the stake label belongs to the game, while the legal and account conditions belong to the casino.

What a UK online casino contributes

A UK online casino is not simply a catalogue of low-stake games. It is a remote gambling service that accepts customers, provides access to casino games and manages the associated account. For real-money gambling in Great Britain, the operator must hold the relevant licence from the UK Gambling Commission. The Commission is the public authority responsible for overseeing commercial gambling in Great Britain.

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This gives the casino setting a function that a standalone game does not have. The operator is accountable for how the service is supplied, who may use it and how gambling controls are applied. A penny slot therefore should not be assessed only by its title or advertised stake. You also need to identify the operator behind the lobby and confirm that it is authorised for the activity it offers.

The licence is not a decorative badge. It connects the casino to the regulatory system that governs remote gambling in Great Britain. A site serving British customers without the required UK Gambling Commission licence is not equivalent to a UK-licensed operator, even if its games look familiar or its interface uses pounds.

Checking the operator before playing

Look for the operator’s legal name, licence information and a link to the Gambling Commission register. The website footer is a practical place to start, but the important step is matching the information shown there with the regulator’s record. A casino name used in advertising may differ from the company named on the licence, so check the legal entity rather than relying only on the brand.

The operator is accountable for how the service is supplied, who may use it and how gambling controls are applied. A UK-licensed operator must hold a licence from the UK Gambling Commission.

The register is the authoritative place to examine a licence’s status and scope. This matters because an operator’s presence online does not, by itself, establish that it may lawfully provide casino games to people in Great Britain. The relevant question is whether the business serving you has the required current authorisation.

A specialist review has reported that the register lists Grace Media (Gibraltar) Limited with an active Remote Casino licence. Treat that as a point to verify in the register rather than as a permanent description: licence records and business arrangements can change. The same checking method applies to any other casino you consider.

Why the casino name is not enough

Searches for the best penny slots in the UK or popular casino penny slots often produce lists arranged by game name. Such lists can be useful for finding titles, but they do not establish that every site displaying a title is suitable for British real-money play. The same game may appear through different operators, and the operator determines the account and regulatory environment.

A familiar brand also does not replace licence verification. Do not infer authorisation from a British flag, pound sterling symbols, a UK-facing domain or references to 1p slots. Those features describe presentation, not legal status. The licence check should come before registration or depositing.

This is also why “best” is not a purely game-based label. One player may mean the lowest available stake; another may mean a wide selection of penny slots; another may mean a casino with clear information and usable controls. The operator’s licence is a baseline condition, not a ranking of games, but it is essential before comparing anything else.

UK casino access and the meaning of “free”

A casino may display penny slots in a lobby without requiring you to stake money immediately. That does not alter the operator’s regulatory identity or turn an unlicensed service into a licensed one. “Free” can describe a play mode, while the casino remains the service providing access to the game.

Keep the two questions separate:

• Is the operator authorised to provide remote casino gambling to customers in Great Britain?
• Are you playing a demonstration version or placing a real-money stake?

The first concerns the casino and its legal position. The second concerns the mode in which you use the game. Mixing them can make a free-play label appear to answer a regulatory question when it does not.

Penny slots versus higher-stake slots

The phrase “penny slot” describes a low minimum stake, not a separate legal category of casino. A higher-stake slot and a penny slot can be offered in the same licensed lobby. The casino’s responsibility does not disappear because the individual stake is small, and a low stake does not make an unlicensed operator acceptable.

Nor does the casino setting turn a penny slot into a guaranteed low-risk product. The label tells you where the game starts on the stake scale; it says nothing by itself about whether you will win, how often a payout will occur or how large a particular result may be. Those are properties of the game and its outcomes, not reasons to skip the operator check.

When comparing penny slots at a UK online casino, establish the operator’s authorisation first. Then treat the game information and the casino environment as separate layers: the game describes what is offered, while the licensed operator determines whether and how it is offered to customers in Great Britain.

Playing Strategy

Separate the game’s mathematical properties from your access method by checking minimum stakes and RTP before playing.

Choosing and Trying Penny Slots Without a Real-Money Stake

A sensible way to compare penny slots is to separate the game itself from the way you access it. First examine the published minimum stake and RTP. Only then decide whether to try the game in free play or use a real-money balance. This prevents a colourful interface, a large feature panel, or a promotional message from deciding the choice for you.

Compare the minimum stake with the RTP

The minimum stake tells you the smallest amount required for one spin. It is the practical test for whether a game fits a penny-slot budget. Two games may both be described as penny slots while having different minimums, so do not rely on the label alone. Open the game information and identify the smallest available stake before starting.

RTP, or Return to Player, is a separate measure. It describes the proportion of all money wagered that the game is designed to return over its lifetime. It does not predict the result of your next spin, and it does not turn a low-cost spin into a guaranteed saving. A game with a higher published RTP may still produce a losing session, while a game with a lower RTP may produce a win during a short session.

Use the two figures for different decisions:

• Minimum stake: whether the game can be played within your intended cost per spin.
• RTP: the mathematical return specified for the game over a very large number of spins.
• Session limit: how much you are prepared to spend or how long you are prepared to play.

UK Gambling Commission rules require RTP information to be made available to players. Treat that information as a comparison tool, not as a forecast. If you cannot locate the minimum stake or RTP in the game information, you do not have enough detail to make a properly informed comparison.

A simple comparison table can help:

The paytable is useful for understanding the game’s rules, but it should not be confused with RTP. A prominent prize symbol does not show how often it appears, and a bonus feature does not establish that the game is suitable for your budget.

Free play is not real-money play

A free version allows you to operate the game without risking your own deposit. Depending on the platform, it may work directly in a browser and therefore require no download. That describes access, not a different mathematical game. Read the practice-mode notice carefully: some versions use virtual credits, and their results do not create a withdrawal balance or a claim on cash.

Free play can still have a practical purpose. You can learn where the stake control appears, inspect the paytable, see how the reels and feature screens work, and check whether the pace or presentation encourages you to continue. It also gives you an opportunity to record the published minimum stake and RTP before deciding whether the game belongs on your real-money shortlist.

Final Verification

• Confirm the cheapest complete spin cost
• Check the stated maximum stake
• Note the RTP for the current version
• Verify the total amount to be charged per spin
• Ensure the applicable age-based limit is clear

Do not treat a successful free-play run as evidence that a real-money session is favourable. Virtual results do not compensate you for losses, establish a winning pattern, or alter the game’s RTP. They are a way to understand the interface and rules without placing a monetary stake.

Real-money play begins when a spin uses funds that could otherwise be withdrawn or spent elsewhere. The distinction remains the same whether you access the game through a desktop browser, a mobile browser, or an application. “No download” concerns the method of access; it does not mean that the game is free, and it does not remove the need to control spending.

A practical way to move from practice to real money

If you decide to switch after free play, set the boundary before opening the real-money game. Start with the amount you can afford to lose, rather than with an amount suggested by the outcome of the practice session. A low stake can make individual spins feel insignificant, but repeated spins still consume the balance.

Use this sequence:

1. Read the game’s minimum stake and RTP information.
2. Try the free version if you need to understand the controls or paytable.
3. Decide whether real-money gambling fits your disposable budget.
4. Set a deposit limit before depositing or before beginning the session.
5. Use a reality check or session timer to interrupt automatic continuation.
6. Stop when the limit or the planned session ends, regardless of whether the balance is up or down.

A deposit limit controls how much money can enter the account during the chosen period. It does not guarantee that the money will last for a particular duration. A time-out is a break from gambling, while a reality check is a prompt that reminds you about the passage of time or your activity. These controls solve different problems, so selecting one does not make the others unnecessary. Operators must make deposit limits, time-out periods, and reality checks available.

If the session is no longer consistent with the budget you set, do not increase the limit to continue. Increasing a limit changes the boundary rather than improving the game’s mathematics. A decision made after losses is particularly likely to confuse recovering money with assessing the game.

Is a penny slot worth playing?

There is no general answer based only on the word “penny”. Value depends on what you mean by worth playing. If the aim is to learn a game’s controls without risking money, free play can serve that purpose. If the aim is to obtain a reliable profit, neither the low minimum stake nor a published RTP provides that result.

The most defensible comparison is therefore narrow: select a game whose minimum stake matches your spending boundary, read its RTP, understand the rules, and decide whether the entertainment fits the budget. Do not rank games by a promise of being “best” without defining the measure. The lowest minimum stake, the highest RTP, the simplest interface, and the most features are different criteria.

Your financial circumstances matter as well. UKGC-licensed operators must assess whether a player’s gambling remains sustainable by considering income and expenditure patterns. That assessment is part of the operator’s responsibility, but it does not replace your own limit. If gambling begins to compete with rent, bills, credit commitments, or essential spending, stop rather than treating a smaller stake as a solution.

Summary of Conclusions

• A penny slot is defined by its minimum spin cost, not its highest prize or symbol appearance.
• RTP is a long-run statistical measure and does not predict individual session outcomes.
• The house edge remains the same regardless of whether you play at penny stakes or higher.
• Always verify the operator’s UK licence and match it against the Gambling Commission register.
• Free play is a tool for understanding mechanics, but it does not use real-money mathematical outcomes.

Free penny slots can be useful for learning how to play penny slots, but practice is not a prediction. A real-money choice should follow the published game information and a boundary you set in advance, not the result of the preceding spins.

Bonus Rounds and Bonus Funds Are Different

A bonus round belongs to the slot itself. It is an in-game feature triggered by a qualifying event, such as a symbol combination. The feature may change the way the next part of the game is played, award additional spins, or apply a different reward mechanic. If you are using a demo version of a penny slot, the bonus round can still appear because it is part of the game’s programmed rules. No casino promotion is required.

Bonus funds are different. They are promotional value added by an operator under the terms of a casino offer. The balance may look like money available for play, but it can be subject to conditions before any associated winnings can be withdrawn. Those conditions should be read separately from the slot’s rules. A game’s bonus round does not remove, reduce or replace the wagering condition attached to promotional funds.

Read the wagering condition precisely

A wagering requirement states how much qualifying play must be completed before a promotional balance or related winnings become withdrawable. The calculation can apply to the bonus, the winnings, or another amount specified in the offer terms. The wording matters, so check which balance is used and which games or stakes count.

For UKGC-licensed operators, a specialist review reports a cap of 10× on wagering requirements applied to bonus funds. That limit does not mean every promotion has the same condition, nor does it make promotional play risk-free. A free-spin offer can also attach a separate requirement to winnings; a specialist review describes a typical range of 30×–40× for such winnings. Treat those figures as terms to verify for the specific offer, not as a feature of every penny slot.

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The practical distinction is simple: a bonus round is generated by the game during play, while bonus funds come from the operator’s promotion. Free play can demonstrate how a game feature behaves, but it does not reproduce the withdrawal rules of a real-money promotion.

Penny Slot Payouts and Jackpot Expectations

A penny slot’s low entry stake affects how much money is exposed on each spin, not the mathematical advantage built into the game. The relevant measure is Return to Player (RTP): the percentage of all money wagered that the slot is designed to return across its lifetime. If a game has an RTP below 100%, the difference represents its house edge over that very long period.

That calculation applies to the value wagered, not to one player’s session. A single spin can return nothing, return the stake, or produce a much larger payout. The result does not need to resemble the RTP because RTP is an aggregate measure across a huge number of spins. Short-term results can therefore be well above or below the theoretical return.

Reducing the stake does not improve the percentage return. The house edge at penny stakes is the same as the house edge at any other stake for the same game. A smaller wager means that wins and losses are smaller in cash terms, while the mathematical proportion remains unchanged. Raising the stake increases the amount at risk per spin but does not buy a better underlying expectation.

Jackpots need the same distinction. A jackpot is an individual, unusually large outcome or a prize attached to a particular feature; it is not evidence that the game will return a fixed amount over a short session. A penny slot can produce a substantial result relative to the amount staked, but neither a low stake nor the word “jackpot” changes the game’s house edge.

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Treat the displayed RTP as a long-run statistical property, and treat every spin’s payout as a separate random event. This prevents two common errors: expecting regular returns because the RTP is published, or assuming that a small stake makes a jackpot more likely. It does neither.

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Prepared by the Casino Not on Gamstop editorial staff.