Top 7 Bonus Buy Slots
Bonus buy slots let you pay for entry to a specified feature instead of waiting for its natural trigger.
The bonus buy feature can open free spins, coin respins or another bonus altogether.
X9999 Riches is our best overall pick. Its 100x purchase opens a three-reel number bonus with extra boosts depending on the Wild Cash symbols that trigger it.
This article compares the 7 best bonus buy slot games by purchase cost, what the purchase opens, RTP and maximum win.
Best Bonus Buy Slots
| Slot | Purchase cost | Purchased feature | Max win |
|---|---|---|---|
| X9999 Riches | 100x | Wild Cash number bonus | 10,490x |
| Golden Johnn Rush | 50x free spins; 40x respins | 10 free spins or Gold Respin | 5,624x |
| Tropical Elvis | 40x respins; 48x free spins | Coin respins or free-spin entry | 2,000x |
| Bonanza Billionaire | $20 at a $0.25 bet* | Free-spin entry | 15,000x |
| Hops Bonanza | 100x | Free-spin entry on a 6×5 grid | 15,000x |
| Cosmic Fruits | 100x | Free spins with teleporter multipliers | 15,000x |
| King of Africa | 100x | Activates the Totem feature on the next spin | 12,000x |
The next reviews explain what you are buying and how the seven options differ.
1. X9999 Riches – Best Bonus Buy Slot Overall
The 100x purchase in X9999 Riches enters the Wild Cash bonus.
Three number reels, each showing digits from zero to nine, determine the award. Four Wild Cash symbols add a 3x boost; five add a 10x boost.
Instead of buying a sequence of free spins, you enter a compact multiplier game whose result depends on the numbers and applicable Wild Cash boost.
The standard RTP is 96.1%, compared with 96.06% for the purchased bonus.
2. Golden Johnn Rush – Bonus Buy with 2 Feature Options
Golden Johnn Rush offers two different purchases. At 50x the bet, you buy 10 free spins. At 40x, you buy entry to the Gold Respin feature.
The free-spins round uses the game’s high-paying symbols and Cactus Wilds. Gold Respin instead centres on prize symbols and collectors, with a 5,000x Grand jackpot.
You can choose the bonus format directly from the purchase menu.
The 40x respin price matches Tropical Elvis, while the free-spins option costs slightly more than that game’s 48x entry.
3. Tropical Elvis – Low-Cost Coin Respin Option
Tropical Elvis offers coin-respin entry at 40x the bet and free-spin entry at 48x. Its 40x option ties Golden Johnn Rush’s respins for the lowest listed bet multiple here.
The coin feature includes three fixed jackpots. The separate free-spin purchase gives you another option within the same game rather than requiring you to switch titles for a different bonus format.
The distinction is cost and feature choice, not “best value” in the sense of a more profitable purchase.
A lower entry price still buys a random outcome, and a bonus can return less than its purchase cost.
4. Bonanza Billionaire – Fruit-Grid Bonus Buy
Bonanza Billionaire uses a 6×5 grid with pinwheel scatters, cascading wins and free-spin multipliers up to 100x.
The purchase provides entry to free spins, with the starting award determined when the feature opens.
The price example in the comparison is $20 at a $0.25 selected bet. Treat that as a quote for that setup rather than assuming every setting uses the same cash amount or buy-in multiple.
Its fruit-and-gem grid makes this a familiar visual option for a player who wants a purchased free-spins round rather than a coin-respin jackpot game.
5. Hops Bonanza – Oktoberfest-Themed Bonus Buy
Hops Bonanza’s 100x purchase enters free spins on a 6×5 grid.
Its beer-festival setting surrounds fruit and drink symbols, while random multipliers in the feature can reach 100x.
The cascading wins remove winning symbols and refill the gaps, allowing another combination to form within the same spin. The purchased round combines that refill system with free-spin multipliers.
Hops Bonanza and Bonanza Billionaire share substantial gameplay similarities, including their grid size.
This is the beer-festival alternative for someone who enjoys that format but prefers tankards and hops to the fruit-and-gem presentation.
6. Cosmic Fruits – Anywhere-Pays Slot with Bonus Buy
Cosmic Fruits’ 100x purchase enters free spins on a six-reel, five-row grid. The alien-fruit symbols pay through matching groups anywhere on the screen, not fixed paylines or both-ways line wins.
After a win, new symbols fill the empty positions. During free spins, the teleporter can apply multipliers from 2x to 100x, increasing a qualifying win.
The teleporter is the feature to watch in this purchased round. It gives Cosmic Fruits its own presentation within the three anywhere-pays grid games in the shortlist.
7. King of Africa – Bonus Buy with Totem Progression
King of Africa uses a 7×7 grid with Cluster Pays and a Totem progression system. During normal play, points build toward feature events, including a Giant 3×3 Wild at the relevant progression stage.
The 100x Bonus Buy activates the Totem feature on the next spin. It lets you enter that part of the game directly instead of waiting for the progression feature to begin through normal play.
It is the most different-looking purchase in this selection: a progression-based cluster game rather than number reels, coin respins or a conventional free-spin entry.
How We Selected the Best Bonus Buy Slots
The comparison centres on what the purchase offers:
- Entry cost: the 40x respin options provide a lower starting multiple than the 100x purchases, without being described as more profitable.
- Feature choice: number reels, coin respins, free spins and Totem progression give you different kinds of bonus to compare.
- Game format: conventional reels, anywhere-pays grids and a cluster game offer more variety than seven versions of one bonus.
- Game math: separate standard and purchase RTPs matter where available, but neither guarantees a positive result from an individual buy.
Is the Bonus Buy Worth It?
That depends on the purchase cost relative to your budget and whether the feature is the part of the game you want to play.
Buying entry does not guarantee a win or a profit, and the price is committed at once rather than spread across ordinary spins.
Deciding when to buy the bonus means comparing that cost with your budget and the feature’s actual rules.
A session budget should account for the possibility that the purchase returns less than it costs, not assume that a bonus will replenish it.
More About the Best Bonus Buy Slot Machines
How do bonus buy slots work?
You pay the displayed price for entry to a specified feature. The cost, starting award and type of feature depend on the game and option selected. Paid free-spin entry should not be confused with a casino promotion offering free spins.
What is the cheapest Bonus Buy slot?
Golden Johnn Rush and Tropical Elvis both offer coin-respin entry at 40x the selected bet. The cash cost still depends on that bet, and the free-spin options in those games have different prices.
Are Bonus Buy slots the same as slots with bonus games?
No. Slots with bonus games can award features through normal play without offering paid entry at all. Bonus Buy specifically means paying to enter a feature directly.
