Bonus Buy Slots What Buying Actually Costs

Where you can and can't find the button

Availability depends entirely on where your casino is licensed, so that's the place to start.

Great Britain prohibits the feature. The Gambling Commission required operators to remove bonus buys, and GB-licensed sites no longer carry them — a game that has the button elsewhere will simply appear without it. Germany has taken the same position under its own online gambling regime. Several other regulated markets have either restricted the feature or are reviewing it.

Elsewhere, it remains widely available. Casinos licensed outside those jurisdictions, including most operators serving players in Canada, Ireland and other English-speaking markets, still offer bonus buys on the games that ship with them. That's the environment the slots listed on this page sit in.

The rationale behind the bans was pace rather than fairness. A bonus buy compresses several hundred spins of play into a single click, which sharply raises the rate at which money leaves an account. In Britain it arrived alongside a package of related measures — autoplay was removed, a minimum 2.5 seconds between spins was imposed, and celebratory effects on wins smaller than the stake were prohibited. All of them target the same thing: how quickly a session can run away from you.

Buying changes the RTP — usually

This is the part that gets missed. A bonus buy version of a slot is not the same maths as the base game.

Studios build the purchase as a separate configuration with its own return to player, and they publish both figures. Often the bought version returns slightly more than base play — a game at 96.50% in normal spins might return 96.70% when the feature is purchased. Sometimes it's lower. The two numbers are genuinely different, and the one displayed on a game's front page is usually the base figure.

So if you're evaluating a bonus buy, the headline RTP is the wrong number. Check what the game publishes for the purchase specifically, and remember that the operator's chosen build affects this the same way it affects base play.

Buying doesn't beat the house

The buy price is calculated so the expected return on the purchase matches the game's intended margin. Pay 100 times your stake to trigger the feature and the average value of that feature is priced at slightly under what you paid — exactly as every other spin is.

What buying changes is time. You've compressed a few hundred spins' worth of expected loss into one action. At a 100x buy on a £1 stake that's £100 staked in a single click, and at 96% the expected cost of that click is around £4. The house edge isn't larger. It simply arrives all at once, and it arrives again every time you press the button.

That compression is the entire appeal for players who want to skip the grind, and the entire reason some regulators moved against it.

18+. Gamble responsibly. Bonus buy features are not available at casinos licensed in Great Britain or Germany. RTP is a long-run theoretical average and does not predict any individual session. Support is available at BeGambleAware.