A lot has changed since the one-armed bandit slots were first introduced in the late 1800s. Long gone are the three-reel, one-payline, pull-the-lever and wait-for-the-magic-to-happen days.
Today, both land-based and online slots offer an immersive gameplay experience full of interactive features that grab your attention, keep you glued to the reels, and give you a chance to multiply your winnings.
Almost all of today’s slots have bonus features, but some are all style and no substance, while others can dramatically increase your chances of coming out ahead. You need to be able to spot which features will actually improve your experience, which is what we’ll teach you here today.
So, if you’re looking for one of the quickest and easiest ways to pad your results on your favorite slot, you’re in the right place. Our casino experts will cover in this guide which slot bonus features to look for, which ones are actually worth something, and which ones you can skip.
🎰 Why Bonus Features Matter
The right bonus features ramp up the excitement of a game while also providing opportunities for big wins. However, some are meant to offer mindless distractions, while others add real value to the games they exist in. And while that value is often monetary, great features also make slots more fun, whether by increasing your playtime, drawing you into the game, or just by providing some variety.
If you're looking to maximize your slots gameplay, we've got plenty of tips and hints to consider while you're spinning the reels:
- Slot Strategy Guide: How to Spin Smart
- No Tricks, Just Clicks: How Do Online Slot Machines Work?
- Slot Paylines Explained: Fixed vs. Adjustable and How They Impact Your Wins
- Top 10 Highest RTP Slots You Can Actually Play Online
- Top Slot Bonus Features Explained: Which Ones Actually Add Value
- Top 10 Slot Games With the Best Free Spins Bonus Rounds
- When is the Best Time of Day to Play Slots?
- When to Switch Bet Amounts on Slots
- Why Slot Denomination Matters More Than You Think
- The True Cost of Playing Penny Slots
- How to Play Online Slot Tournaments
📝 Common Slot Bonus Features Explained
Given how many slot titles there are out there, it’s not surprising that you’ll find a lot of different features. However, these are among the best:
- Free Spins – The original bonus feature, which is offered at any free spins casino, gives you extra shots at making money without costing you anything, and they can combine with multipliers and retriggers to create huge payouts.
- Multipliers – These features multiply your wins, creating even bigger payouts. Most start out at 2x but can reach much higher than that and are usually the foundation of any big-time spins.
- Respin Features – During a respin, certain symbols remain locked while the reels spin again.
- Pick & Click / Bonus Games – These are “games-within-the-game” where you pick certain items that reveal cash prizes or unlock features like free spins or multipliers.
- Expanding / Sticky Wilds – Wilds that either stay in place over multiple spins (because they’re “sticky”) or expand to cover an entire reel, giving you more opportunities to hit.
- Cascading / Avalanche Wins – When you hit a winner on a cascading machine, the symbols will be removed and others will cascade down like an avalanche, potentially unlocking other wins along the way.
💰 Bonus Features That Actually Add Value
If you want the features that will do the most for you (both in terms of increasing your enjoyment and giving you better chances to win), look for the following:
Free Spins with Retriggers
These let you take additional shots at the machine at no cost to you, so anything you win on these is profit. They’re even more valuable when they can be combined with other features, like multipliers or expanding wilds.
Multipliers
While these won’t help you win more often, they make it more valuable when you do. Modest wins can turn into massive paydays when paired with a multiplier, especially in bonus rounds. Some multipliers are progressive, meaning they get bigger with each successive win. If you can find a high volatility slot with multipliers, you have the makings of a great game.
Sticky/Expanding Wilds
Sticky wilds provide immediate value, then stick around to keep doing it. Expanding wilds, on the other hand, can create value all over the board.
Cascading Symbols/Avalanche Wins
Cascading games can give you multiple wins on a single bet. You hit one, then the symbols disappear and others “avalanche” to take their place, potentially triggering new wins. If you combine this mechanic with increasing multipliers, you have the recipe for huge wins on a single spin.
Sticking to a plan is key when playing casino games, regardless of whether you're online or on the casino floor. If you need a bit of extra help, dive into our strategy guides below:
- Blackjack Strategy 101: When to Hit, Stand, Split or Double Down
- Online Blackjack Strategy: Does Basic Blackjack Strategy Work Online?
- Roulette Strategy Guide for November 2025: Tips to Play Better and Longer
- Slot Strategy Guide: How to Spin Smart
- Crapless Craps: Strategy and Pitfalls
- Tips for Surviving a Long Craps Session
- When is the Best Time of the Day to Play Baccarat?
- When is the Best Time of Day to Play Blackjack?
- When is the Best Time of Day to Play Craps?
- When is the Best Time of Day to Play Slots?
- Casino Games With the Lowest Skill Requirement
- Online Casino Glossary
📉 Bonus Features That Don’t Always Add Value
While the bonuses above are definitely worth seeking out, there are a few others that you can safely miss, like:
- Low-value pick & click games: If these games don’t offer big potential payouts or more interesting gameplay, they won’t add much to your bottom line (and they get boring quickly).
- Overly complex bonus games: Some bonus rounds have multiple stages and require an engineering degree to follow. They tend to be more frustrating than rewarding.
- Symbols that don’t do much: Some games have scatters or other symbols that rarely trigger anything fun or meaningful. They simply exist as decoration.
These bonus features aren’t bad, per se. They just don’t add much in terms of fun or profit.
Looking after your bankroll in Las Vegas can be difficult. We've got some tips for helping your dollars go further:
🧐 How to Spot Valuable Bonuses Before You Play
If you’re about to sit down for a long session and want to find the best bonuses possible, here’s what you can do:
- Read paytables before you play. The developers will tell you straight up what to expect from the bonuses.
- Look for the most valuable bonuses listed above.
- Play games in demo mode to see if the bonus features are fun (and how lucrative they tend to be).
- Read reviews and guides before you start playing.
Keep in mind that this isn’t necessarily about winning and losing. It’s about making sure you have the most fun in any given session. After all, online slot machines are entirely random, and there is nothing you can do to guarantee a win.
📝 Quick Tips for Playing Feature-Heavy Slots
Bonus features can turn an average slot into a great one, but don’t treat them as a magical shortcut to big wins. Many online casinos would invite you to try their slots for free (and still have a chance to win) by offering a casino sign-up bonus that will comp you with additional bonus credits to your account. So make sure you check out our featured casinos and the latest offers that will boost your slot bankroll.
That said, when used strategically, they can have a significant impact on your bottom line. Make sure to get the most out of your free spins before you move to another machine, and keep volatility in mind when picking titles (more bonuses usually equal higher risk).
It’s also a good idea to throw in some simpler games from time to time just to keep things fresh. Variety is the spice of life, after all. But no matter which slots you play, always remember it’s all about the fun, never a sure way to make money (even with great bonus features). So always gamble responsibly.
Ziv has been deep in the iGaming trenches for over 20 years, long before most people could spell "geolocation compliance." With a background in marketing and business development at some of the biggest names in gambling tech, Ziv knows the industry from the inside out. Since joining Covers, he's turned his sharp eye (and sharper keyboard) toward everything happening in the fast-moving world of online gambling. Whether it's new state launches, the latest twists in regulation, or what the big operators and game providers are cooking up next, Ziv breaks it all down with clarity, context, and just the right amount of snark. He covers the business side of betting, from affiliate trends and revenue reports to the tech powering your favorite slots. His motto in writing is “let’s make it make sense without putting you to sleep.”
When he’s not tracking gambling legislation or looking for the next breaking story, Ziv is living and dying with every pitch and play from his beloved Pittsburgh Steelers, Pirates, and Penguins. As a Pitt graduate, it’s a city loyalty forged in heartbreak, but one he wouldn’t trade for anything, except maybe a few more playoff wins.
When away from the keyboard, Ziv loves to hit the road and soak up the energy of casinos. Whether strolling the neon jungle called the Vegas Strip, or wandering into a smoky riverboat casino in the Midwest, Ziv’s in his element. He’s the guy chatting with players, blackjack dealers, and asking pit bosses way too many questions, all in the name of “research,” of course. The casino floor isn’t just his workplace, it’s a weird and wonderful ecosystem of flashing lights, wild characters, and pure sensory overload, and he wouldn’t have it any other way.






