Bonus buy slots, also known as feature buy slots, have become increasingly popular among players who want to experience the most exciting parts of a game without waiting for the bonus round to trigger naturally. This feature allows you to pay a premium—typically a multiple of your current bet—to instantly activate the game's main bonus feature, such as free spins or a hold-and-win round. While this can be a high-risk strategy, it offers the potential for instant gratification and the chance to experience a game's full potential right away.

This guide explores the best bonus buy slots currently available, highlighting the top 10 games that offer this exciting feature. We'll delve into the pros and cons of using the bonus buy option, explain how it affects the game's RTP, and provide a curated list of the best games from leading providers like Nolimit City, Pragmatic Play, and Hacksaw Gaming. Whether you're a high-roller looking for instant action or a curious player wanting to see what all the fuss is about, this guide will help you navigate the thrilling world of bonus buy slots.

What Are Bonus Buy Slots?

Bonus buy slots are games that include a feature allowing players to purchase direct entry into the bonus round for a fixed price. This price is typically between 50x and 2,000x your base bet, depending on the game and the type of bonus feature being purchased. The main appeal of this feature is that it allows you to bypass the base game, which can often be a long and uneventful grind, and get straight to the most exciting part of the game where the biggest wins are usually found.

Pros and Cons of Using Bonus Buy

Pros:

Instant Action: No more waiting for three scatter symbols to land. You can experience the bonus round instantly.
Higher RTP: In many games, the RTP is slightly higher when using the bonus buy feature compared to playing the base game.
Experience the Full Game: Bonus buys allow you to see a game's full potential without having to play for hours.

Cons:

High Cost: The cost of a bonus buy can be substantial, and there's no guarantee that you'll win back your investment.
High Risk: Bonus buys are a high-volatility strategy. You could spend 100x your bet and win only 10x back.
Regulatory Restrictions: The bonus buy feature is not available in all jurisdictions. For example, it is banned in the UK by the UK Gambling Commission.

How Does the Bonus Buy Feature Affect RTP?

One of the most intriguing aspects of the bonus buy feature is its effect on the game's Return to Player (RTP). In most cases, the RTP is slightly higher when you purchase the bonus compared to playing the base game. For example, a slot might have a standard RTP of 96.1%, but the RTP for the bonus buy option might be 96.5% or even higher.

Why does this happen? The reason lies in the mathematics of the game. The base game is designed to be a grind, with a significant portion of its RTP locked away in the bonus feature. When you play the base game, you are spending money on thousands of spins that may not trigger the bonus, which slightly drags down the overall theoretical return. By purchasing the bonus directly, you are bypassing this base game grind and engaging only with the highest-returning portion of the game, which results in a slightly higher overall RTP for that specific bet.

However, it's crucial to understand that this is still a theoretical number calculated over millions of spins. A higher RTP does not guarantee a win. You could purchase a bonus with a 97% RTP and still win back only a fraction of your investment. The higher RTP simply means that, in the long run, the bonus buy option is mathematically slightly more favorable than playing the base game, but the short-term variance remains extremely high.

Strategies for Using Bonus Buys Effectively

Using the bonus buy feature is a high-risk, high-reward strategy that requires a disciplined approach. Here are some strategies to use it effectively and responsibly:

Bankroll Management is Key: Never use the bonus buy feature if the cost represents a significant portion of your bankroll. A good rule of thumb is that a single bonus buy should not cost more than 1-2% of your total session bankroll. If a 100x bonus buy costs €100, you should have a bankroll of at least €5,000 to comfortably absorb the potential losses.

Understand the Different Options: In games with multiple bonus buy options (like those from Nolimit City), take the time to understand what each option offers. The most expensive option is not always the best choice. Sometimes, a cheaper option with a lower but more consistent payout potential might be a better fit for your risk tolerance.

Use it for Game Discovery: Bonus buys can be a great way to quickly understand a new game's potential. Instead of spending hours on the base game, you can use a bonus buy to see the main feature in action and decide if you enjoy the game enough to play it long-term.

Set Strict Limits: Before you start your session, decide how many bonus buys you are willing to purchase and stick to that limit. It can be very tempting to chase your losses with "just one more" bonus buy, which is a quick way to deplete your bankroll.

The Evolution of Bonus Buys: From BTG's Feature Drop™ to Nolimit City's xBet®

The concept of buying a bonus feature was pioneered by Big Time Gaming with their trademarked Feature Drop™ in the game White Rabbit. This groundbreaking mechanic allowed players to purchase the free spins round, and the cost could be reduced by collecting special coins during the base game. This innovation was a massive success and was quickly adopted by other providers.

Pragmatic Play popularized the feature with a more straightforward approach in games like Sweet Bonanza and Gates of Olympus, offering a simple 100x bet for instant access to the free spins. This made the feature more accessible and contributed to its widespread adoption.

In recent years, Nolimit City has taken the bonus buy concept to a new level of complexity and player choice. Their games often feature a menu of different bonus buy options, ranging from a standard bonus round to a "super" bonus with enhanced features, each with a different price tag. They also introduced the xBet® feature, which increases the player's base bet in exchange for a higher chance of triggering the bonus naturally—a sort of middle ground between standard play and a direct bonus buy.

This evolution shows a clear trend towards giving players more control over their gameplay experience, allowing them to choose their own volatility and risk level.

Top 10 Best Bonus Buy Slots

Here are the top 10 bonus buy slots, ranked by a combination of win potential, feature cost, and overall gameplay quality.

Quick Comparison Table

Slot	Provider	Bonus Buy Cost	Max Win	Volatility
Tombstone Slaughter	Nolimit City	80x - 2,000x	500,000x	Very High
San Quentin 2	Nolimit City	150x - 1,000x	200,000x	Extreme
Gates of Olympus	Pragmatic Play	100x	5,000x	High
Sweet Bonanza	Pragmatic Play	100x	21,175x	Medium-High
Money Train 2	Relax Gaming	100x	50,000x	High
Wanted Dead or a Wild	Hacksaw Gaming	80x - 400x	12,500x	High
The Dog House Megaways	Pragmatic Play	100x	12,305x	High
Fruit Party	Pragmatic Play	100x	5,000x	High
Jammin' Jars 2	Push Gaming	100x	50,000x	High
Chaos Crew	Hacksaw Gaming	129x	10,000x	High

1. Tombstone Slaughter (Nolimit City)

Bonus Buy Cost: 80x - 2,000x | Max Win: 500,000x

Tombstone Slaughter offers a range of bonus buy options, from the relatively affordable 80x for the standard free spins to the eye-watering 2,000x for the super-powered Boothill Free Spins. The massive 500,000x max win potential makes even the most expensive bonus buy a tempting proposition for high-rollers chasing life-changing wins.

2. San Quentin 2 (Nolimit City)

Bonus Buy Cost: 150x - 1,000x | Max Win: 200,000x

San Quentin 2 continues Nolimit City's tradition of offering multiple bonus buy options. Players can choose from several different free spin modes, each with a different cost and volatility level. The most expensive option, the Lockdown Spins with a guaranteed top-tier symbol, offers the best chance at unlocking the game's massive 200,000x max win potential.

3. Gates of Olympus (Pragmatic Play)

Bonus Buy Cost: 100x | Max Win: 5,000x

Gates of Olympus is one of Pragmatic Play's most popular slots, and its 100x bonus buy is a major reason why. This instantly triggers the free spins round, where multiplier symbols can land and accumulate, leading to potentially huge wins. The relatively affordable cost and the exciting gameplay make this a favorite among bonus buy enthusiasts.

4. Sweet Bonanza (Pragmatic Play)

Bonus Buy Cost: 100x | Max Win: 21,175x

Sweet Bonanza is another Pragmatic Play classic with a 100x bonus buy. This triggers the free spins round, where candy bomb multipliers can land and boost your wins by up to 100x. The game's cluster pays mechanic and cascading reels create a dynamic and exciting experience, and the bonus buy provides a shortcut to the sweetest action.

5. Money Train 2 (Relax Gaming)

Bonus Buy Cost: 100x | Max Win: 50,000x

Money Train 2 is a legendary high-volatility slot with a powerful bonus buy feature. For 100x your bet, you can instantly trigger the Money Cart Bonus Round, a hold-and-win feature where you collect symbols with various special abilities to increase your win. The potential for massive payouts in this bonus round has made it a favorite among streamers and high-rollers.

6. Wanted Dead or a Wild (Hacksaw Gaming)

Bonus Buy Cost: 80x - 400x | Max Win: 12,500x

Wanted Dead or a Wild offers three different bonus buy options, each corresponding to one of the game's three unique bonus rounds. Players can choose to buy the Great Train Robbery, the Duel at Dawn, or the Dead Man's Hand feature, each with a different cost and volatility level. This flexibility allows players to tailor their bonus buy experience to their own risk appetite.

7. The Dog House Megaways (Pragmatic Play)

Bonus Buy Cost: 100x | Max Win: 12,305x

This popular Megaways slot from Pragmatic Play includes a 100x bonus buy that lets you choose between two different free spin modes: Sticky Wilds or Raining Wilds. The Sticky Wilds feature is the higher volatility option, offering the best chance at hitting the game's max win. The ability to choose your own bonus feature adds an extra layer of strategy to the bonus buy experience.

8. Fruit Party (Pragmatic Play)

Bonus Buy Cost: 100x | Max Win: 5,000x

Fruit Party is a fun and colorful cluster pays slot with a 100x bonus buy. This triggers the free spins round, where symbols can land with random multipliers that can combine to create huge wins. The game's cheerful theme and exciting gameplay make it a popular choice for players looking for a fun and potentially rewarding bonus buy experience.

9. Jammin' Jars 2 (Push Gaming)

Bonus Buy Cost: 100x | Max Win: 50,000x

The sequel to the iconic Jammin' Jars, this game includes a bonus buy feature that instantly triggers the free spins round. The game's main feature is the walking wild jars, which come with increasing multipliers and can create massive wins as they dance around the grid. The high volatility and massive 50,000x max win potential make this a thrilling bonus buy experience.

10. Chaos Crew (Hacksaw Gaming)

Bonus Buy Cost: 129x | Max Win: 10,000x

Chaos Crew is a gritty and edgy slot with a unique bonus round that can be instantly triggered for 129x your bet. The bonus round is a hold-and-win feature where you collect symbols with various special abilities, including multipliers and symbol collectors. The game's high volatility and unique theme have made it a cult classic among slot enthusiasts.

Regulatory Landscape: Why Bonus Buys Are Banned in Some Regions

Despite its popularity, the bonus buy feature has been a subject of controversy among regulators. The main concern is that it can encourage risky and potentially harmful gambling behavior. The high cost of the feature and the high-risk, high-reward nature of the gameplay can lead to players spending large amounts of money in a very short period of time.

As a result, the UK Gambling Commission (UKGC), one of the strictest regulators in the world, banned the bonus buy feature in the United Kingdom in 2019. The UKGC argued that the feature could "lead to players spending more than they can afford."

This is why you will not find the bonus buy option available in UK-licensed online casinos. Game providers automatically disable the feature in jurisdictions where it is prohibited. This regulatory split highlights the different approaches to player protection in different parts of the world and serves as an important reminder to always gamble responsibly and within your means.

Conclusion

Bonus buy slots have fundamentally changed the way many people play online slots, offering a direct path to the most exciting and potentially lucrative parts of the game. While the allure of instant action and massive win potential is strong, it's a feature that must be approached with caution and a clear understanding of the risks involved. The high cost and extreme volatility mean that it is not a strategy for every player or every bankroll.

By understanding how the bonus buy affects RTP, employing smart bankroll management strategies, and being aware of the regulatory landscape, you can make informed decisions about when and how to use this powerful feature. The 10 games highlighted in this guide represent the pinnacle of bonus buy design, offering a thrilling and transparent experience for those who choose to take the plunge. As always, the key is to play responsibly, set limits, and remember that the ultimate goal is entertainment.

Best Bonus Buy Slots: Top 10 Games to Instantly Trigger Features