A slot bonus buy sells entry to a feature that would otherwise need a trigger during ordinary play. The word “bonus” describes the game phase, not a free gift. The customer commits a separate purchase price before seeing what that feature returns.

That distinction matters when the feature screen still describes its rounds as free spins. Those spins may require no further individual stake, but a customer who bought entry has already paid for the package. A payout has to be compared with that purchase cost before it can be called a net gain.

One rules sheet, two different purchases

The public Sweet Bonanza 1000 rules PDF hosted by YesPlay gives a concrete example. Its Buy Free Spins costs 100 times the total bet. Buy Super Free Spins costs 500 times the total bet. Both guarantee a triggering spin with at least four scatter symbols; the super mode also sets a minimum multiplier value of 20 times on its multiplier symbols.

These are two named modes in one published document, not a price range for all slots. The PDF uses rand-denominated bet limits and lists separate RTP figures for its modes. It does not establish what build a particular customer can access today. Our game-version guide explains why matching the title alone cannot resolve that question.

For an invented example with a R10 total bet, the two prices are R1,000 and R5,000. Changing that assumed bet to R6 changes the prices to R600 and R3,000. The multiplier remains the same; the money committed does not.

Buying entry changes where the round begins. It does not mean that every possible feature result covers the price. Nor does the guarantee of triggering symbols specify a guaranteed cash return. That guarantee concerns entry to the feature, not the customer’s final balance.

Put the RTP beside the amount paid

The same PDF lists 96.53% theoretical RTP for ordinary play, 96.52% for Buy Free Spins and 96.55% for Buy Super Free Spins. These are disclosed figures for this document, not percentages we measured by playing. The RTP explainer covers why a theoretical average cannot predict a session.

The two purchase figures differ by 0.03 percentage points. The PDF does not publish the complete probability distribution or a separate mathematical derivation of the buy modes. We do not turn those percentages into verified cash expectations for a customer’s game.

Two purchase modes in the public rules PDF; R10 total bet is an invented example, not an observed session
Mode in the public PDFInvented R10-bet purchase priceTheoretical RTP printed for that mode
Buy Free Spins: 100 times total betR1,000 paid96.52%
Buy Super Free Spins: 500 times total betR5,000 paid96.55%

The cost question can be shown with a separate fictional model. Suppose two purchases each have 96% RTP, explicitly defined here as expected total payout divided by the complete price paid. A R1,000 purchase then has R960 expected payout and R40 expected loss. A R5,000 purchase has R4,800 expected payout and R200 expected loss. Equal percentages can accompany very different amounts at risk. These are invented model values, not Sweet Bonanza 1000 returns or forecasts for an individual round.

For a separate, invented settlement example, paying R1,000 and receiving R700 leaves a R300 loss. An animation showing a positive payout has not changed that subtraction. The figures describe arithmetic, not a result observed in Sweet Bonanza 1000.

An ante option still leaves a trigger to happen

The PDF distinguishes its ante mode from direct feature purchase. It describes a higher bet multiplier that increases the chance of triggering free spins and disables Buy Free Spins. Paying for a changed trigger chance is different from paying for guaranteed entry.

A reader comparing controls therefore needs the event each control purchases: a changed chance on an ordinary spin, or the start of a feature. A similar-looking button does not establish identical rules. The complete feature description and the total amount to be deducted have to agree.

A public feature description does not establish local availability

Great Britain provides a specific warning against assuming that every displayed feature belongs in every market. In a January 2020 notice, the Gambling Commission said six contacted operators had removed feature buy-in facilities. It cited transparency under RTS 3A and responsible design under RTS 14A.

The Commission’s current RTS 14 still prohibits active encouragement to increase stakes or chase losses. Its RTS 14D concerns the minimum interval between slot cycles; it should not be misquoted as a sentence specifically banning bonus-buy buttons. Our Stakelogic timing report deals with that separate timing requirement.

RTS 3 requires accessible rules and likelihood information before commitment. Those British requirements do not certify the YesPlay document as a GB product or supply a worldwide legal conclusion. A feature shown in a public PDF is not a reason to seek a workaround where it is unavailable.

The purchase changes the route into the feature and the size of the commitment. Its price, mode-specific rules and applicable RTP need to be read together. The word “bonus” does none of that accounting for the customer.