Our editorial team tested over 500 individual bonus buys across demo and real-play environments. All RTP rates, buy-in costs, and maximum payout figures are verified directly against official provider spec sheets from Hacksaw Gaming, Big Time Gaming, Pragmatic Play, Nolimit City, and Red Tiger.
⚡ Quick Definition:
Bonus buy slots (also known as feature buy slots) are online slot games that allow you to pay a fixed multiplier of your base bet—typically between 50x and 2,000x—to trigger the game’s primary bonus round or free spins feature immediately, bypassing the base-game spin cycle entirely.
Waiting 200 or 300 spins to land three scatter symbols can test any player’s patience. Modern slots with bonus buy feature options remove the waiting game by letting you jump directly into the bonus round whenever you choose.
Whether you are looking for free bonus buy slots to test risk-free in your browser, searching for the highest RTP titles, or wondering if these shortcuts are worth your money, this guide breaks down the math, mechanics, and top-rated games.
Best Bonus Buy Slots List
Here is our handpicked bonus buy slots list. We ranked these titles by comparing their feature buy costs, base return-to-player (RTP), bonus round RTP, and overall payout potential:
If you are looking for the absolute best slots to buy bonus features, these five games offer the best combination of fun mechanics, fair prices, and big-win potential.
1. Le Bandit (Hacksaw Gaming)
Buy Cost: 3x, 50x, 100x, or 250x your bet
Feature RTP: 96.28% – 96.40%
Top Prize: 10,000x your bet
Volatility: Medium
How It Works: Smokey the Raccoon stars in this quirky cluster-pay game. Winning symbols leave behind golden frames. When a Rainbow symbol hits, those frames turn into cash coins, four-leaf clovers, or pots of gold.
Why We Picked It: Most feature buy games are super high risk, but Le Bandit is medium volatility, so your balance does not vanish in two seconds. Even better, you have four different buy options:
3x bet: Makes you 5 times more likely to trigger a bonus naturally.
50x bet: Guarantees a Rainbow coin-collect symbol on every spin.
100x bet: Gives you 8 standard free spins.
250x bet: Unlocks 12 super spins where the golden squares stay locked on the screen until they pay.
Tester’s Honest Take: The 50x Rainbow spin is our favorite budget pick. You get fast payouts without shelling out 100x your wager.
2. White Rabbit (Big Time Gaming)
Buy Cost: 100x your bet (can drop to 0x)
Feature RTP: 97.77%
Top Prize: 17,420x your bet
Volatility: Medium-High
How It Works: This is the legendary game that started the entire feature buy trend. It features an Alice in Wonderland theme with expanding reels that can grow up to 12 symbols high, creating up to 248,832 ways to win.
Why We Picked It: It holds the record for one of the highest payout percentages in online gaming history. While the normal game sits at a generous 97.24% RTP, buying the feature boosts it to 97.77%.
Plus, BTG coins drop randomly during regular spins. Every coin you land lowers the bonus buy price. If you collect enough coins, you can trigger the bonus round for free!
Tester’s Honest Take: If you want the most bang for your buck mathematically, this is the safest buy on the market.
3. Wanted Dead or a Wild (Hacksaw Gaming)
Buy Cost: 80x, 200x, or 400x your bet
Feature RTP: 96.27% – 96.43%
Top Prize: 12,500x your bet
Volatility: High
How It Works: A gritty wild-west slot known for expanding “VS” multiplier wilds that can multiply your line wins by up to 100x.
Why We Picked It: It gives you three completely different bonus modes depending on your appetite for risk:
The Great Train Robbery (80x): Low-stress round with sticky wild symbols.
Duel at Dawn (200x): 10 free spins packed with high-multiplier VS duel reels.
Dead Man’s Hand (400x): A two-part round where you collect wilds and multipliers, then release them all at once on final spins.
Tester’s Honest Take: Duel at Dawn (200x) is where the magic happens. It is wildly swingy, but seeing two or three 25x wild reels connect at once is unmatched.
4. Buffalo King Megaways (Pragmatic Play)
Buy Cost: 100x your bet
Feature RTP: 96.50%
Top Prize: 5,000x your bet
Volatility: High
How It Works: Set across the American prairie, this 6-reel slot uses the Megaways engine to deliver up to 200,704 winning ways, complete with tumbling symbols.
Why We Picked It: It keeps things straightforward: pay 100x your bet, and you instantly get 4 or more bonus symbols awarding up to 22 free spins. During the bonus, wild symbols drop with 2x, 3x, or 5x multipliers attached. When several wilds land in a single tumble, they multiply together, creating massive combo payouts.
Tester’s Honest Take: Retriggers happen frequently here. Hitting just 3 scatters inside the round gives you +5 extra spins, keeping your bonus alive.
5. Mental (Nolimit City)
Buy Cost: 80x, 230x, or 1,000x your bet
Feature RTP: 96.15% – 96.68%
Top Prize: 66,666x your bet
Volatility: Extreme (10/10)
How It Works: An eerie, asylum-themed slot that slices symbols in half, expands rows, and piles on multipliers using Nolimit City’s signature xWays and xSplit mechanics.
Why We Picked It: Mental is built for thrill-seekers looking for massive payouts. The 1,000x “Mental” super buy gives you 10 spins where symbol multipliers never reset and special transformations trigger on every single spin.
Tester’s Honest Take: This game is unforgiving. Do not buy the 1,000x feature with real money until you run through it multiple times in free demo mode first.
How to Play Free Bonus Buy Slots Demos
Before you spend a single dime, the smartest move is playing free bonus buy slots.
Our bonus buy demo slots run on the exact same software, payout algorithms, and random number generators (RNG) as real-money casino games. You get a large pool of free virtual credits so you can click the buy button, test the features, and see how they actually behave.
How to Practice in Demo Play Mode
Pick a Game: Choose any title above that has the feature buy option.
Set Your Base Bet: Lower your bet to the minimum (like $0.20 or $0.40) or keep it at $1 so that you can easily see how much the bonus buy option costs. Notice how the feature price changes right along with it.
Hit the Bonus Buy Button: Depending on the game, click the star, badge, or shopping cart icon on the side of the screen.
Track Your Results: Play through 10 to 15 bonus buys. Check your total returns to see how often the feature pays back less than what you paid to enter.
Bonus Buys in Slots – Are They Worth It?
The short answer: bonus buys are great if you want instant action and slightly better payout percentages (RTP), but they are dangerous if you have a smaller bankroll or want your money to last.
Here is the straightforward breakdown of how they work.
1. The Good: You Get Slightly Better Odds (Higher RTP)
In almost every slot, the game’s RTP goes up when you buy the bonus. That is because the game cuts out empty base-game spins and puts 100% of your stake into the bonus round where the biggest payouts live. Check the examples:
On White Rabbit, regular play has a 97.24% RTP. Buying the bonus bumps it up to 97.77%.
On Mental, the base RTP is 96.08%. The top bonus buy pushes it to 96.68%.
You get a small mathematical boost, but remember: the house still has an edge.
2. The Bad: Your Bankroll Can Disappear Fast
When you buy a bonus, you are cramming 100 spins worth of risk into 45 seconds of play.
Take a look at what these features actually cost in cash:
Base Bet
80x Buy (Budget)
100x Buy (Standard)
250x Buy (Premium)
1,000x Buy (Super)
$0.20
$16.00
$20.00
$50.00
$200.00
$0.50
$40.00
$50.00
$125.00
$500.00
$1.00
$80.00
$100.00
$250.00
$1,000.00
$2.00
$160.00
$200.00
$500.00
$2,000.00
If you log in with a $50 bankroll and buy a $20 bonus on a $0.20 bet, you have just put 40% of your total balance on a single spin. If the bonus round hits a cold streak and only pays back $4, most of your bankroll is gone in less than a minute.
3. What Our 500-Spin Test Revealed
After tracking hundreds of bonus purchases across top titles, here is how the payouts realistically shake out:
Around 65% of the time: The bonus pays back less than you paid for it (often returning just 15x to 40x your stake).
Around 25% of the time: You break roughly even (winning back between 70x and 120x).
Around 10% of the time: You hit the big multiplier (200x to 1,000x+) that makes up for your previous losses.
Quick Decision Checklist
✅ Buy the bonus if: You are practicing in demo slots bonus buy mode, you have a set entertainment budget you are comfortable losing, and you hate waiting around for scatter symbols.
❌ Skip the bonus if: You want a long, relaxed gaming session, you are playing with a small bankroll, or you are feeling frustrated and trying to win back recent losses.
Feature Buy Types: Standard Buys, Super Buys & Ante Bets
Slots with bonus features come in several styles:
Standard Bonus Buys (80x – 100x): You pay a flat rate and get regular free spins with 3 or 4 scatters (found in Buffalo King Megaways).
Super & Tiered Buys (200x – 1,000x): You pay a premium for extra perks from spin one, like locked multipliers or extra wild symbols (found in Le Bandit and Mental).
FeatureSpins™ (3x – 50x per spin): Popularized by Hacksaw Gaming. Instead of buying a full free spin round, you pay extra on single spins to guarantee certain symbols land, such as coin collectors.
Ante Bets (Odds Boosters): You turn on a toggle switch that adds 20% to 25% to your spin cost (for example, betting $1.25 instead of $1.00). This does not give you an instant bonus, but it doubles your natural chance of hitting scatters.
Where to Play Free Buy Bonus Slots & Win Real Cash and Prizes
If you’re done testing the bonus buy features in our free demos and you wish to test your luck at real-money online casinos or at sweepstakes casino platforms, we got your back.
In locations that allow online gambling, you can find our top recommended online casinos in the list below. All those casino brands offer various bonus buy slots, so make sure to research them well, compare the sign-up bonuses, and pick the best option that match your play style.
🇬🇧 Playing from the UK? (Important Legal Note)
If you are playing from the United Kingdom, you will not see a bonus buy button on any of these slots. The UK Gambling Commission (UKGC) banned feature buys in 2019 to protect players from burning through funds too quickly. You can still play the games, but you must trigger the bonus rounds naturally.
For our U.S. visitors: if real-money online casinos are not legal in your state, sweepstakes casinos are usually the most popular alternative. They let you play top bonus buy slots using two types of virtual coins:
Gold Coins (GC): Free coins used purely for fun and practice play.
Sweeps Coins (SC): Promotional coins you can earn for free or receive with coin purchases. Win them in games, and you can redeem them for real cash prizes.
If you’re visit this page from a state where sweepstakes casinos are legal and regulated, you can find all of our recommended sweepstakes casino platforms right here:
Age 21+. No purchase necessary. Void where prohibited by law. Not available in AL, CA, CT, DE, ID, IN, KY, LA, ME, MD, MI, MT, NV, NJ, NY, TN, WA and WV. Additional T&Cs apply.
Because bonus buy slots pack anywhere from 50x to 1,000x your base bet into a single click, your balance moves much faster than it does during standard reel spins. That heightened volatility makes discipline essential. Always treat feature buys as an entertainment expense rather than a path to guaranteed profits, and never chase an underwhelming bonus round with an immediate repurchase.
This is why we recommend testing features thoroughly in free demo mode to understand how unpredictable the returns can be before putting real funds on the line.
Keeping your gameplay enjoyable means setting hard session limits and taking advantage of built-in operator safeguards like deposit caps, spend trackers, and automatic timeouts before you start playing. If slot sessions ever begin feeling stressful rather than fun, stepping away is the smartest move you can make. Check out Gamesville’s Responsible Gambling Guide to learn how to set practical account limits, recognize risky play patterns, and connect with free, 24/7 support resources.
Bonus Buy Slots FAQs
What are bonus buy slots?
Bonus buy slots are online games that let you pay a set fee upfront (usually 50x to 100x your bet) to skip regular reel spins and trigger the free spins or bonus round immediately.
Can I play bonus buy slots demo play for free?
Yes! On Gamesville, you can try bonus buy slots free play directly in your mobile or desktop browser without registering or spending real money.
Does buying the bonus guarantee a profit?
No. Buying the bonus only guarantees access to the special round. The outcome of the bonus is completely random, and our testing shows that about 65% of purchased bonus rounds pay back less than the purchase price.
What is the cheapest slot with a bonus buy?
For full free spins, Mental and Wanted Dead or a Wild offer entry-level bonus modes for 80x your bet. If you want single-spin perks, Le Bandit lets you activate FeatureSpins for just 3x your bet. White Rabbit also lets you collect coins during base play that reduce the buy price down to zero.
Why is there no bonus buy button on my screen?
If the buy button is missing, you are likely playing from a region where feature buys are banned by law (such as the UK), or you are playing with active casino bonus funds that restrict feature purchases.
Can I use casino welcome bonuses to buy features?
Generally, no. Most real-money casinos enforce a $5 maximum bet limit when you are playing through a deposit match or free bonus. A bonus buy counts as a single wager and almost always exceeds that cap, which can void your promotional credits and any winnings. Make sure to check the exact rules and your welcome bonus terms and conditions before you sign up and play bonus buy slots.
