Slot Bonuses - Everything You Need To Know in 2023

Last Updated: 14/09/2023

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Verified by Lee James Gwilliam

There are thousands of exciting online slot games out there, and one of the best ways to try these games without breaking the bank is with slot bonuses. These promotions allow you to play games without risking as much of your own money and give you a chance to make a profit at slot sites.

Do you want to know what slot bonus is best for you? Keep reading our complete guide to discover what rewards you can claim and how to claim them.

Affiliate disclosure: At, we want to ensure that players are matched with the right casino and sportsbook offers for them. For this reason, some of the recommended site links are affiliate links. This means that if you visit a website through our link and make a deposit, will receive a commission payment at no extra cost to you.
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How To Find The Best Slot Bonuses

Slots are the most popular online casino game, so finding a site offering a slots bonus isn’t actually that challenging. What is tricky is finding a slot bonus that suits you as a player because there are so many options. Perhaps you’d prefer to grab a handful of free spins on a particular title? Alternatively, if you want to boost your slot-spinning bankroll without spending a fortune, no deposit slots bonuses are perfect for you.

Whatever your preference, the main thing to consider is playing with a licensed and regulated online casino like the sites recommended here at That way, you can spin the reels with confidence, knowing that your personal and financial information is safe.

After that, you want to check out the terms and conditions of each slot bonus to determine which offers the best value. It’s essential to keep your eye out for wagering requirements, which tell you how many times to play through your bonus funds before cashing out. Similarly, if you have a particular online slot machine you want to play, remember to make sure it is not excluded from the promotion.

What We Consider When Reviewing a Slot Bonus

Our review team at, comprised of gambling experts, has decades of experience under their belts. As such, we review every area of a slot bonus before making a recommendation. We don’t just look at the big number on offer but dive into the terms and conditions to determine a promotion’s actual value. Here are some of the critical areas we investigate.

  • Bonus amount: The most generous slot bonuses allow you to play slots for longer with more bonus funds or free spins. We send our experts looking for promotions with the most value.
  • T&Cs: The terms and conditions determine how much you can get from a promotion. We examine minimum deposit requirements, time limits, and payment method restrictions to determine the best slot bonuses.
  • Wagering requirements: You’ll find wagering requirements on almost every slot bonus, telling you how many times you need to use your funds before you can withdraw. Our team looks for bonuses with low wagering requirements so you can get the best value out of your offer.
  • Slot eligibility: Some bonuses will be limited to a particular selection of games decided by your online casino. Our experts search for the offers which let you play the most games.
  • Other promotions: Slot bonuses are a lot of fun, but there are also plenty of other promotions and online casino promo codes out there. We seek sites that provide generous slot bonuses alongside promos for different types of games, including table games and live dealer games.

Choosing the Best Bonus for You

There is a lot to consider when choosing which slots bonus is best for you. Firstly, you’ll want to claim an offer that’s eligible for your favorite slot games. Another main point is looking for slot promotions that give you a high value. Part of ensuring your bonus is high value is checking the terms and conditions to see what you need to do to withdraw your winnings.

To claim slot bonuses with the best online real money casino platforms, you should sign up with the top-rated sites on this page. Our recommended platforms are safe, have a wide variety of games, and provide regular and generous bonuses. What more could you need?

Bonus Welcome Package up to €500 + 130 Free Spins
18+ T&C Apply. Play Responsibly. Full Terms Apply.
Bonus 200% Welcome Bonus up to €5000 + 50 Free Spins
Bonus 100% Welcome Bonus up to €300 +150 Free Spins

Types of Slot Bonuses

The best online casinos offer generous bonuses for both new and existing players, most of which you can claim and use on online slots. Our experts have summarized some of the most common slot bonuses below.

Welcome Bonus

A casino welcome bonus is a promotion for new players to entice them to sign up at an online casino. You can get many of the rewards listed below as a welcome bonus, including free spins, deposit bonuses, and no deposit bonuses.

Free Spins

When you claim a free spins bonus, an online casino will reward you with a set number of spins on particular slot games. Sometimes, your winnings from free spin offers can be limited, but these promotions still give you a chance to spin slot reels and make a profit.

Deposit Bonus

A deposit bonus, or a deposit match bonus, is where an online casino will equal a percentage of your deposit with bonus funds. For example, an online casino could offer a 100% deposit match of up to $300. If you deposit $200, you’ll get $200 in bonus funds, giving you $400 to use on slot games. Most deposit bonuses are available as a part of a welcome offer and will have wagering requirements.

No Deposit Bonus

Unlike other promotions on this list, you don’t need to make a minimum deposit to claim a no deposit bonus. Instead, your online casino will reward you for opting in or completing your registration. These bonuses are great for beginner players who want to try out gambling without risking their money.

Reload Bonus

A reload bonus is very similar to a deposit bonus, as the online casino will match a percentage of your qualifying deposit with bonus funds. These promotions are often available for existing players to boost their bankrolls.


With a cashback bonus, an online casino will pay you back the money you’ve lost playing eligible slot games with bonus funds. You can use these bonus funds to continue playing slot games, withdrawing any profits once you complete the wagering requirements.

Slot Bonus Terms and Conditions - What You Need to Know

Nothing is truly free in the online casino world. Every online casino promotion will have terms and conditions to consider, which you’ll need to abide by while redeeming your slots bonus. Many casinos use reasonable T&Cs to ensure players can’t take advantage of generous bonuses. Below are some of the most common terms for slot bonuses.

  • Wagering requirements: As discussed, wagering requirements tell you how many times you need to use your bonus funds before withdrawing. The higher the wagering requirements, the harder it is to walk away with a profit. Low wagering requirements are best if you want to make the most of your slot bonuses.
  • Game exclusions: Some bonuses are only eligible for particular games, whereas others may exclude certain game types like progressive jackpot slots. The best promotions are available for the broadest possible range of games.
  • Payment method restrictions: Many online casinos will prevent you from claiming a bonus if you use ineligible payment methods. Fortunately, the most commonly accepted payment options are bank cards like Visa and Mastercard.
  • Minimum deposit: Many slot bonuses have minimum deposits you need to meet before you can claim your offer. The best slot bonuses will have low minimum deposit requirements, so players on any budget can enjoy them.
  • Maximum bonus amount: The maximum bonus amount tells you the most value you can get from an offer. Top slot offers will offer you thousands of dollars worth of bonuses to play with.
  • Time limits: Many online casinos will put time limits on you using your promotions. You’ll never get through your bonus funds if you claim an offer with massive wagering requirements and only seven days to complete them. Look for the offers which give you time to enjoy your promotions.

Wagering Calculator

Which Slots Have the Best Slot Bonus

The good news for slot fans is that you can play tons of thrilling slot games with most online casino bonuses. However, some casinos may restrict certain types of games from contributing to wagering requirements, including progressive jackpots and games from specific providers. Below, we’ve listed some of the games that are commonly eligible for casino bonuses.

  • Starburst: This classic slot game from NetEnt with a 96.09% RTP is one of the most popular slots of all time. With a flashy and cosmic theme across its 5x5 grid, players can win up to 50,000x of their slot bonus with a lucky spin on Starburst.
  • Fishin’ Frenzy Megaways: The fishing theme of the Fishin’ Frenzy slot has been incredibly popular, but in this version of the game, you can have a maximum of 15,625 paylines. You can earn free spins rounds and hit big wins if you land a scatter fisherman symbol and reel in a bunch of fish.
  • Buffalo Blitz II: Developed by Playtech, Buffalo Blitz II builds on the success of its predecessor with better graphics and new features. You can enjoy its prairie theme with its free spins bonus and claim multipliers on your wins. This 5x5 slot has an RTP of 96.96% and has 4096 paylines.

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Meet the editor

Ziv Chen
Ziv Chen Writer

Ziv Chen has been working in the online gambling industry for over two decades in senior marketing and business development roles. Ziv writes about a wide range of topics including slot and table games, casino and sportsbook reviews, American sports news, betting odds and game predictions. Leading a life full of conflict, Ziv constantly struggles between his two greatest loves: American football and US soccer.


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