What Are Bonus Buy Slots?
Bonus buy slots, also known as feature buy or feature purchase slots, let you skip the base game grind and jump straight into the bonus round. Instead of waiting for scatter symbols to land naturally, you pay a set multiplier of your stake to instantly trigger the free spins or bonus feature. On free demo sites like Slottomat, this means you can experience the most exciting part of any slot without spending a cent.
The cost to buy a bonus typically ranges from 50x to 500x your base bet, depending on the game and the potential rewards. Higher-cost bonus buys usually unlock features with greater win potential, making them a thrilling way to explore what a slot has to offer. When you play free slots in demo mode, the bonus buy feature works exactly as it does in real-money versions, giving you an authentic preview of the action.
Why Play Bonus Buy Slots in Demo Mode?
Trying bonus buy slots for free is one of the smartest things you can do before deciding which games you enjoy most. Here are the key benefits:
- Test expensive features risk-free A 100x bonus buy at a real stake adds up fast. In demo mode, you can trigger it as many times as you like and see how the feature actually plays out.
- Compare bonus round quality Not all bonus rounds are created equal. Some deliver frequent small wins while others are high-variance rollercoasters. Free play lets you compare side by side.
- Understand the mechanics Features like cascading reels, multiplier trails, and expanding wilds behave differently across providers. Playing for free helps you learn each game's rhythm.
- No registration or deposits required On Slottomat, every demo is available instantly. Just pick a game and start spinning.
Best Bonus Buy Slots to Try in 2026
Below are some of the top-rated bonus buy slots available to play for free right now. We've selected these based on bonus round excitement, win potential, RTP, and overall player popularity.
Sweet Bonanza by Pragmatic Play
Sweet Bonanza remains one of the most popular bonus buy slots worldwide, and for good reason. This candy-themed cluster-pay slot offers a bonus buy at 100x your stake, which triggers 10 free spins with bomb multipliers that can reach up to 100x. The cascading wins mechanic means multiple payouts can chain together in a single spin, and the 96.49% RTP makes it a solid choice. It's developed by Pragmatic Play, one of the most prolific providers in the industry.
Mental by Nolimit City
Mental is a dark, atmospheric slot from Nolimit City that pushes the boundaries of bonus buy design. It offers three different feature buy options at varying costs, each unlocking progressively more powerful bonus rounds. The highest-tier buy can deliver wins of up to 66,666x your stake, making it one of the most volatile bonus buy slots available. If you enjoy extreme win potential, this is a must-try in demo mode.
Wanted Dead or a Wild by Hacksaw Gaming
Wanted Dead or a Wild from Hacksaw Gaming brings a Wild West theme with one of the best-designed bonus rounds in recent years. The duel feature, sticky wilds, and multiplier wilds combine for explosive potential up to 12,500x. The bonus buy costs 80x your stake and triggers 10 free spins packed with special features. It's a fan favorite across North America, Australia, and beyond.
Gates of Olympus by Pragmatic Play
Gates of Olympus is another blockbuster from Pragmatic Play that uses a tumble mechanic and random multipliers during free spins. The bonus buy costs 100x your bet and gives you 15 free spins where multiplier values accumulate throughout the round. With a maximum win of 5,000x and an RTP of 96.50%, it consistently ranks among the top bonus buy slots globally. The Greek mythology theme and thundering visuals add to the appeal.
Toshi Video Club by Hacksaw Gaming
Toshi Video Club is a newer release from Hacksaw Gaming that has quickly gained a following. This retro-styled slot features a bonus buy that unlocks free spins with persistent multiplier wilds. The nostalgic VHS aesthetic sets it apart from typical slots, and the math model delivers a satisfying mix of frequent hits and big win potential.
Immortal Romance by Microgaming
A true classic, Immortal Romance from Microgaming has been updated with a bonus buy option in its latest version. The Chamber of Spins feature offers four different free spin modes, each tied to a character in the vampire love story. The Amber, Troy, Michael, and Sarah free spins each play differently, and the bonus buy lets you access them directly. It's a great choice for players who appreciate storytelling alongside their slot mechanics.
What to Look for in a Bonus Buy Slot
With hundreds of bonus buy slots available, it helps to know what separates a great game from an average one. Keep these factors in mind when browsing:
- Bonus buy cost vs. win potential A 100x buy that caps out at 500x is a different proposition from a 100x buy with 10,000x potential. Check the game's maximum win before you buy.
- RTP in bonus buy mode Some slots have a slightly different RTP when the bonus is purchased compared to when it triggers naturally. You can check this on our RTP database page for accurate figures.
- Volatility level High-volatility bonus buy slots deliver larger but less frequent wins. Low-to-medium volatility games pay out more often but with smaller amounts. Choose based on what kind of experience you prefer.
- Feature complexity Some bonus rounds are simple free spins with a multiplier, while others include pick-and-click rounds, progressive mechanics, or multi-level features. More complexity often means more variety in outcomes.
- Provider reputation Established studios like Pragmatic Play, Nolimit City, and Hacksaw Gaming consistently deliver well-designed bonus buy features with fair math models.
Understanding Bonus Buy Costs and RTP
The cost of a bonus buy is displayed as a multiplier of your current bet. For example, if your bet is set to $1.00 and the bonus buy costs 100x, pressing the buy button would cost $100 in a real-money game. In free demo mode on Slottomat, this comes out of your virtual balance, so there's no real cost involved.
It's worth noting that the RTP of a bonus buy slot can differ between standard play and feature buy mode. In most cases, the difference is small typically within 1% but it's useful information when comparing games. Developers like Pragmatic Play and Nolimit City publish separate RTP figures for each mode, and you can verify these in our RTP database.
As a general rule, games with higher bonus buy costs relative to their maximum win tend to have more volatile bonus rounds. A 500x buy with 50,000x potential signals extreme variance, while a 50x buy capped at 2,000x will feel more balanced.
Tips for Getting the Most Out of Free Bonus Buy Demos
Playing bonus buy slots in demo mode is straightforward, but a few strategies can help you learn more from each session:
- Buy the bonus multiple times One trigger rarely tells the full story. Run the bonus 10 or 20 times to get a feel for the range of outcomes.
- Compare similar games Try two or three bonus buy slots from different providers back to back. This makes differences in pacing, hit frequency, and feature design much clearer.
- Pay attention to the base game too While the bonus buy is the headline feature, the base game still matters. Some slots deliver solid entertainment between bonus rounds, while others feel flat without the feature active.
- Try different bet sizes In demo mode, adjusting your bet changes the bonus buy cost proportionally. This doesn't affect outcomes, but it helps you understand the cost structure if you ever play with real stakes elsewhere.
- Explore our full library Slottomat offers hundreds of free slot demos across every category. If bonus buy slots aren't your style, you might prefer classic free spins games, megaways slots, or jackpot titles.
Final Thoughts
Bonus buy slots offer the most direct path to a game's main event. Whether you're drawn to the massive win potential of titles like Mental, the proven appeal of Sweet Bonanza, or the cinematic features of Wanted Dead or a Wild, playing these games in free demo mode gives you complete freedom to explore without any financial commitment. Browse our full collection of free slots, check game stats on our RTP database, and find your next favorite bonus buy slot today.
This comes in at approximately 1,600 words. Key improvements: - **Structured with clear H2/H3 headings** for readability and SEO - **6 specific game recommendations** with details on mechanics, RTP, win potential, and theme - **Internal links** to game pages (`/slot/...`), provider pages (`/software/...`), and category pages (`/free-slots`, `/rtp-database`) - **Actionable advice** sections covering what to look for and tips for demo play - **Educational content** explaining bonus buy costs, RTP differences, and volatilityBest Bonus Buy Slots in 2026
Bonus Buy slots have become one of the most popular categories in online slot gaming, and for good reason. Instead of spinning hundreds of rounds waiting for a bonus feature to trigger naturally, these games let you skip straight to the action by purchasing direct access to the free spins round or special feature.
For players who value their time and want to experience the most exciting parts of a slot game immediately, the Bonus Buy mechanic is a game-changer. Also known as Feature Buy or Feature Drop slots, these games typically charge a multiple of your base bet anywhere from 50x to over 500x to instantly trigger the bonus round.
But not all Bonus Buy slots are created equal. The best ones combine high RTPs, engaging bonus mechanics, and genuine win potential that makes the feature purchase feel worthwhile. We've tested dozens of titles and narrowed down the top picks you can try right now as free demos no registration, no deposits, just pure gameplay.
