The feature buy button offers something that sounds like a shortcut: pay a fixed multiple of your stake and enter the bonus round immediately, skipping the wait. On a game where the feature triggers roughly once every 200 spins, that is an appealing proposition, and it has become one of the most-used mechanics in modern slot design.
What it is not is a way to get better value. The price is calculated specifically so that it is not, and understanding how that calculation works explains both why buys exist and where they genuinely change your session — which is in variance and pace, not in return.
What a feature buy is mechanically
The button does one thing: it places a single large bet that resolves entirely inside the bonus round.
You are not skipping the base game and keeping its value. You are declining the base game and purchasing the feature separately, at a price the provider has set. The random outcome of the feature is generated the same way it would be if it had triggered naturally — same RNG, same certified distribution, same maximum win cap.
Typical prices sit between 60x and 100x the base stake for a standard buy, and up to 500x for enhanced versions with improved starting conditions. Published buy prices and their associated return figures vary meaningfully between titles, and platforms that display both the base RTP and the buy RTP in the game information, Caswino among them, make the comparison possible before you press anything — which matters, because the two numbers are not always the same.
How the price is calculated
The pricing is straightforward and worth seeing.
If a feature triggers on average once in 200 spins, and the feature returns on average 75x the stake when it does, then the feature’s contribution to the game’s return is 75 ÷ 200 = 0.375 per spin. Over 200 spins at $1, you would have staked $200 and received $75 from features plus whatever the base game returned.
The buy is priced so that purchasing the feature directly costs approximately what generating it naturally would have cost, adjusted to preserve the game’s target RTP. If the feature returns 75x on average, the buy will be priced near 75x plus the house margin — typically landing in that 80–100x range.
The consequence: a feature buy at a correctly priced game returns approximately the same percentage as the base game. You are paying full price for the thing you would have received anyway. The buy purchases time, not value.
Base play versus feature buy, compared
| Factor | Base play | Feature buy |
|---|---|---|
| Typical RTP | 96% (published) | 95.5–96.5% (often listed separately) |
| Turnover per press | 1x stake | 60–500x stake |
| Time to reach feature | ~200 spins average | Immediate |
| Variance | Moderate | Very high |
| Cost per hour at same button rate | Baseline | 60–500x baseline |
| Budget durability | Long | Very short |
The row that matters most is turnover per press. At $1 spins, a 100x buy stakes $100 in a single action. If the game’s edge is 4%, that press has an expected cost of $4 — the same as one hundred ordinary spins, compressed into two seconds.
This is where feature buys actually change a session, and it has nothing to do with RTP. A $200 budget lasts roughly 200 spins in base play and two presses on a 100x buy. The percentage return is nearly identical; the time you spend and the volatility you experience are not remotely comparable.
Why buy RTP sometimes differs
Providers do not always price buys exactly RTP-neutral, and the direction varies by title.
Some games list a buy RTP slightly higher than base — 96.5% against 96.0%, for instance — because the buy removes the base game’s low-return spins from the calculation. Others list it slightly lower, treating the convenience as a chargeable service.
The difference is usually under a percentage point either way, which makes it a poor reason to buy or not buy. It is worth checking anyway, for the same reason it is worth checking any published number: it takes ten seconds and occasionally reveals a game where the buy is meaningfully worse.
Enhanced buys — paying more for extra starting symbols or a guaranteed multiplier — follow the same principle. The higher price is calculated against the improved distribution, and the return remains within the same narrow band.
Where feature buys are restricted
Several regulated markets have prohibited the mechanic entirely, including the United Kingdom, where the Gambling Commission banned bonus buys in 2021, along with the Netherlands, Germany, Belgium and Italy.
The stated reasoning in those jurisdictions concerns pace: a mechanic that compresses a hundred spins of turnover into a single button press removes the natural time gap between decisions, and regulators treated that compression as the relevant risk rather than the return figure.
Where buys are available, they are also frequently excluded from bonus wagering. Using a feature buy while clearing a welcome offer can void the bonus outright, since the purchase almost always exceeds the maximum bet permitted during wagering. This is one of the most common ways bonuses are lost, and it is easy to do accidentally.
Practical points
- Check the maximum bet rule before buying anything while a bonus is active. A 100x buy on a $1 base stake is a $100 bet, and max-bet limits are usually $5–$10.
- Compare the buy RTP against the base RTP in the game info. Both are usually listed where buys are offered.
- Recalculate your stake. If you intend to use buys, the base stake that fits your budget is roughly one-hundredth of what it would be for spin play.
- Expect very high variance. A small number of purchases is a small sample, and the outcome distribution of a bonus round is wide.
- Treat enhanced buys as a variance choice, not a value one. The extra price buys a different distribution, not a better return.
- Notice what the mechanic does to pace. The absence of waiting is the product being sold, and it is worth deciding deliberately whether you want it.
That last point is the honest summary of the whole mechanic. A feature buy sells you the removal of the wait. Whether that is worth the compression in session length is a genuine preference question — but it should be answered as a preference question, not as a value calculation, because the value calculation comes out approximately neutral by design.
A closing note that belongs in any honest piece on this subject: a feature buy costs the same percentage as ordinary play while staking many times more per action, which makes it the fastest way to reach a budget limit in any lobby. Set a budget you are entirely comfortable losing, decide your stop point before you start, and step away when you reach it. Gambling is for adults 18+ only, and free confidential support services are available in most countries.