Read in-game

Bonus buy: the real price, slot by slot

The bonus buy is the most used and least documented feature in slots. Almost every site says it exists; none says what it costs. Our readings give the price for 909 slots, measured in-game, and all 27 casinos on the comparator allow it.

27 casinos compared Up to 650% bonus 2,460 free spins across the offers we track, 3 of them with no wagering at all. See the 27 offers → Code cyberslots $20 free and 10% VIP rakeback The offer negotiated for the site: what it actually gives, and its terms in plain words. Claim the offer → 1,705 slots measured The ones that pay the most, verified The stated RTP against the one our readings observe, from best to worst. See the ranking →

909

slots with their buy price read

27 / 27

tracked casinos allowing bonus buys

100x

the most common buy price

1,705

slots ranked by verified RTP

What a price in "x" means

A 100x buy costs a hundred times your base stake. At €0.20 per spin the buy costs €20; at €1, it costs €100. That is the only unit that makes sense, because it depends on neither currency nor stake level.

The real range is wide: from under 50x to over 500x depending on the slot and the bonus type bought. A site assuming "100x everywhere" is therefore off by hundreds of euros across a hunt session.

Bonus buy or super spin: not the same thing

The confusion is costly, and it is everywhere. Two different buttons, two different promises:

	Bonus buy	Super spin, ante, booster
What you buy	the bonus itself, guaranteed	one spin, with better odds or more symbols
Common price	50x to 500x the stake	1.25x to 25x the stake
Bonus guaranteed	yes	no
Where it appears	the game's buy panel	the game's special bets

The word "guaranteed" applies only to the buy. A 3x super spin raises the probability of hitting the bonus, it does not hand it over: on a slot whose direct buy costs 60x, that 3x spin is roughly a one in twenty shot. It is a price ratio, not a promise.

Should you buy the bonus?

The honest answer is one sentence: buying does not change the slot's RTP, it changes the shape of your session. You pay to skip the dry spins and go straight to the paying part, which concentrates both wins and losses.

What makes buying defensible is context:

Under a no-wager bonus, buying makes full sense: there is no volume to replay, so nothing pushing you to grind for hours. No-wager offers go up to 300% of your deposit.
When the budget allows several attempts. A 100x buy with a two-buy budget is an expensive coin flip. The simulator shows it in ten seconds.
On a slot that holds its stated RTP. Paying 100x on a slot whose observed RTP slips means paying full price for a lower return: the verified RTP ranking rules that case out.
Never under heavy wagering, where buying burns the budget before clearing anything.

The most useful yardstick: count in number of attempts, not in euros. A budget covering six buys leaves you a session; a budget covering one and a half does not.

Where these prices come from

They are read in-game, buy panel open, amount read and divided by the stake shown in that same panel. Not copied from a press release, not inferred from an average. It is slow, and that is exactly why nobody else does it.

When a slot proves a buy without publishing a price, it is flagged as such and the simulation applies a reference value: the displayed figure stays distinct from the measured one. We never display a price we have not seen.

See the 27 casinos allowing it The bonus hunt tracker

Three slots worth a close look

The RTP our readings observe, the bonus buy price and the maximum win, page by page.

Wisdom of Athena Pragmatic Play 96.07% observed Retro Tapes Push Gaming 96.47% observed Cloud Princess Hacksaw Gaming 96.24% observed

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Frequently asked questions

How much does a bonus buy cost?

The price is expressed as a multiple of the base stake. The most common is 100x, but the real range runs from under 50x to over 500x depending on the slot. Our readings give the in-game measured price for 909 slots.

Should you buy the bonus in slots?

Buying does not change the slot's RTP, it changes the shape of the session: wins and losses more concentrated. It stands up when the budget allows several attempts, on a slot that holds its stated RTP, and above all under a bonus with no wagering.

What is the difference between a bonus buy and a super spin?

The buy hands over the bonus, guaranteed, and costs 50x to 500x the stake. A super spin, ante or booster buys a single spin with better odds, for 1.25x to 25x the stake, with no guarantee at all. Classification follows the game panel the option sits in, never its price.

Which casinos allow bonus buys?

All 27 casinos tracked by the comparator allow it. The one thing to check concerns active bonus periods: some offers forbid it until wagering is cleared.

Does a bonus buy increase RTP?

No, and this is the most misunderstood point. RTP in buy mode is of the same order as in normal play, sometimes very slightly above, sometimes below depending on the slot. What changes is how outcomes spread out, not their average.