Casino bonuses are beautiful things: They all let you play with an advantage and award your actions, such as becoming a member and making a deposit. In fact, they even award you for losing too! And when it comes to bonus offers, slot machines are the best game to use them: They are mostly the subject of online casino promotions and contain a bonus round themselves, so it is a win-win situation. However, these two things are usually confused by the players: Bonus slots and slot bonuses are two different things.

They are both fun and profitable, but they are still different – if you want to maximize your winnings, you must be aware of this distinction. Playing slot games with bonus games will be different than taking advantage of slot games with bonuses, and we want to show you the difference between these options. In this article, you can find everything you need to know about both and learn how to take advantage of slot related casino welcome bonus offers. Let’s start – those reels won’t spin themselves!

What Is The Difference Between Bonus Slots And Slot Bonuses?

Ok, let’s start by explaining the difference between slots games with bonus and a slot bonus. Yes, they look like the same thing but they are really not. The first one means that there is a bonus game/round in the slot itself, and the other one means that there is a specific promotion for that game. Sounds confusing? Well, here are some practical examples.

Slot bonuses are promotional offers, organized by the casino operator to gain attention and win new members. This means when you become a member of the casino (or make an additional deposit) you can take advantage of a bonus offer that is related to top rated slot machines. For example, a 100% casino bonus will match your deposit amount with this percentage and award you a couple of free spins, to use on slots. This is called a slot bonus and it is a promotional event – we will give more detail about it below.

Slot bonus games, on the other hand, refer to a mini game or a round within the slot game itself. For example, activating a free spins round falls into this category. Or, triggering a “gamble” mini-game will be considered a bonus game. Again, we will explain this topic with examples below. For now, know that each and every slot has some kind of bonus game within it, but only a couple of them become the subject of casino bonus offers.

The Best Bonus Slots Casinos You Can Play Right Now

Before we continue, let’s give you two examples of online casinos to play the best online casino bonus slots. Moreover, these will be casinos that make the most advantageous online slot bonus offers. So, you will get the best of both worlds: The chance to play the slots with best bonus games and to get really useful welcome packages, such as 300% casino bonus offers. That’s right: The websites below will offer you very generous welcome packages and let you start playing with an edge.

Best Online Bonus Slots Picks

Big5 Casino
Register today at Big5Casino to benefit from this amazing welcome bonus:

  • Get a 100% up to €500 on your first deposit with a minimum deposit of  €20
  • Get an additional 500 Free Spins when you deposit €55+
  • The free spins are released in bundles of 50 free spins per day, over the course of 10 days
  • Wagering requirements: 30x
Spin Samurai Casino
Get the amazing welcome package at Spin Samurai Casino: Up to €800 + 75 Free Spins!

  • 1st deposit: 60% up to €100
  • 2nd deposit: 50% up to €200 + 25 Free Spins
  • 3rd deposit: 40% up to €500 + 50 Free Spins
  • wagering requirements: 45x
Divas Luck Casino
Register today at Divas Luck Casino and receive a massive 400% welcome bonus up to €1200!

  • Use the promotional code WELCOME to trigger the bonus
  • Minimum deposit required: €25
  • The bonus must be wagered 45 times on slots supplied by Evoplay, Booongo, Spinomenal, Betsoft and Saucify
Skol Casino
Make five deposits and start playing with €1.300 + 250 bonus spins! Skol casino offers a different bonus every day of the week! 

  • 1st deposit bonus: 100% up to €300 + 100 Free Spins
  • 2nd deposit bonus: 75% up to €300 + 75 Free Spins
  • 3rd deposit bonus: 50% up to €300 + 50 Free Spins
  • 4th deposit bonus: 25% up to €300 + 25 Free Spins
  • 5th deposit bonus: 100% up to €100
  • Wagering requirements: 35x
  • Minimum deposit required: €10

We can keep giving more examples, but we think that these will be the best options to start with. If you want to see more suggestions, remember that we can suggest dozens of online casinos to play slots with bonuses, and find the best online casino for your country. If you want to learn more about these websites, head to our casino review section and find everything you need to know: We reviewed all these casino sites (and dozens more) in detail.

Different Types Of Slot Bonus Rounds: Which One Is The Best?

Ok, let’s start with slots with best bonus rounds. As explained above, there are lots of bonus games/rounds you can play in slots, and each one is different from the other. So, what kind of bonus features you can expect? More importantly, which one is the best bonus game slots? First, let’s take a look at the best bonus slots categories.

  • Free Spins: This one allows you to spin the reels entirely for free, and at the end, you get to keep the reward. Depending on the game, you can get 20 or even 200 free spins: All slot machines with bonuses have a different amount.
  • Pick Me Rounds: This is a mini-game that asks you to pick between closed symbols. Each pick will reveal a different prize, which can be a free spin or a cash prize. When you reveal a specific symbol, the round ends. It is much like a Minesweeper game.
  • Guessing Games: This one gets activated after every winning spin, so it is a constant slot bonus. Basically, you are asked to guess the color or the sign of a closed play card. If you are successful, you can double your payout.
  • Exotic Bonus Games: There are also some additional bonus slots rounds that ask you to play a platform game or even a shooting game. If the bonus round does not enter any of the categories above, it is an “exotic” bonus.

So, which one is the best bonus feature slots? We must go with the free spins round here. All the best slots for bonus games contain this feature for a reason: Spinning the reels without a cost always gives you an advantage. (Come check out our online casino games guide and see which games support free spins) And most of the times, the payout at the end of the round will be doubled or tripled. We can say that the games that contain a free spins round are the best bonus slots online. Others have several problems, such as:

  • The guessing game is risky because if you cannot guess right, your entire payout is lost.
  • The pick me rounds contain the risk of finding the “bad” symbols that end the game.
  • Exotic bonus games are mostly for fun and do not pay lots.


You get the best chance for bonus slots by playing free spin rounds that can be re-triggered. This means it is possible to re-activate the same feature and gain additional free spins while the round is active. In theory, if you are lucky enough, you can get thousands of free spins in this way. In any case, your chances will be better in slot games that contain free spin rounds you can re-trigger.

An Analyze Of Online Slot Bonus Offers: Which Promotion Should You Get?

Ok, we talked about online slots with best bonus rounds, so let’s move onto the online slot bonus offers. As mentioned above, this type of slot bonuses is promotional events, which give you a cash prize or a random number of free spins to use. So, what is the deal with slots with bonus offers? Which type of promotions you can get? More importantly, which one is the best bonus for slots? Let’s list the main categories first.

  • Welcome Bonus: As mentioned above, these offers are for new members and they give something in exchange for becoming a member. These are always casino registration bonus offers, but what you get will be different according to the promotion type. For example, if you are getting free spins just for becoming a member, this is a best online slots no deposit bonus. But if the casino site requires you to make a deposit, this will be a match bonus. For example, a 400% casino bonus will match your deposit amount by 400%, and if you deposit 100 EUR/USD, you will get an additional 400 EUR/USD to play with. Sounds nice, right? Usually, a free spins offer comes with these match bonuses, so it is a win-win situation.
  • Cashback Bonus: The casino will refund a certain percentage of your losses on a constant basis. For example, if this rate is 25%, you will win back 25% of all your losses on slot machines. This is a very advantageous bonus as it usually does not have a wagering requirement.
  • Casino Reload Bonus: The casino will award your deposits by matching them with a certain percentage and giving additional free spins. A casino reload bonus gets triggered every time you make a deposit. This means unlike the welcome bonus, you can use it infinitely

Best Online Casino Bonus Slots List


Casino Name


Casino License


Get started

100% Up To €500 + 500 Free Spins
Rating 9.99 out of 10
Up to €800 + 75 Free Spins
Rating 9.90 out of 10
Up to 1200% Welcome Package
Rating 9.81 out of 10
Receive ‎€390 Promo Code ANALYZE
Curacao eGaming License
Rating 9.72 out of 10
Up to €600 + 100 Free Spins
Rating 9.63 out of 10
Get 400% up to €1200
Rating 9.54 out of 10
Up to €1300 + 250 Free Spins
United Kingdom
Rating 9.45 out of 10
Get €1050 + 300 Free Spins
Netherlands Antilles
Rating 9.40 out of 10
120% up to €240
Rating 9.35 out of 10
110% Up To 1BTC + 189 Free Spins
UK not accepted
Rating 9.32 out of 10
100% up to €500 + 200 Free Spins
Rating 9.30 out of 10
€500 + 100 Free Spins
Rating 9.30 out of 10
Receive ‎100% up to €300
Serbia License
Rating 9.25 out of 10
Up to €200 + 100 Free Spins
Netherlands Antilles
Rating 9.10 out of 10
Receive €500 + 200 Spins
Netherlands Antilles
Rating 9.05 out of 10
Receive $1080
Rating 9.04 out of 10
Get €500 + 200 Free Spins
Netherlands Antilles
Rating 9.01 out of 10
Welcome Bonus Up To € 2500
Curacao eGaming
Rating 8.95 out of 10
Grab $1500 + 300 FREE SPINS
United Kingdom
Rating 8.94 out of 10
Claim 1.5 BTC + 250 F.S.
Curacao eGaming
Rating 8.93 out of 10

All of these bonuses give you an advantage, but the welcome package is the best one: Due to its single-use, it contains the highest number of free spins to use on best online slots bonus games and the highest possible cash amount. However, no matter which one you pick, there will always be a wagering requirement – we will explain what this means below.

You Must Know This Pro Tip!


The free spins you get as a part of the welcome deal cannot be used on all the best slots with bonus games. The casino operator has already picked a couple of slots and your bonus can only be used on these games. To get the best out of this deal, make sure that a game with free spins is in the scope of the bonus. In other words, check whether you are able to use your free spins on best slots with bonus games or not. This limitation also applies to free spins on registration no deposit as well, not only to those free spins you receive after making a deposit!

How To Find The Best Bonus On Slots

Well, we explained everything you need to know about bonus slots and slot bonuses, so it is time to explain how to find the best bonus casino slots offers. As mentioned above, there are several bonus offers to pick from, but “big numbers” are not the only important thing you need to be aware of. In this regard:

  • Make sure the slot bonus offer is really advantageous. All bonuses come with a wagering requirement, which means your bonus funds (or winnings that come from free spins) will be “locked” until you wager a certain amount of money. This requirement is shown with a rate (i.e. 40x) and explains how much you need to wager in total. For example, if you win 100 EUR by using free slots bonus slots bonus codes, you need to wager 4.000 EUR first (40 x 100). Only after that, your bonus funds will become withdrawable. Finding a low wager casino can be hard, but it is of crucial importance: If the rate is too high, that bonus may be completely useless.
  • Make sure the free spins you get do not have a maximum winning limit. Yes, you can get lots of free spins for the best casino slots with bonus games, but are you sure that they are really useful? If there is a certain winning limit for these spins (i.e. you cannot win more than 10 EUR), that bonus may not be that advantageous. Look for online slot bonus offers that do not have a prize limit.
  • Make sure you can use the bonus. Even if you are accepted to the casino as a member, the bonus itself may be limited to certain countries. For example, Canadian members are welcome to join and play, but they are unable to use a welcome campaign. This is actually pretty common in 200% bonus casinos, as the rate is quite high and the operator chooses to limit it with a couple of countries. In short, always check the terms & conditions and make sure that the bonus is available to you.

Or, you can skip all of the above and go with our recommendations: We already checked all the offers and found the best slots with bonus rounds for you. Moreover, our recommendations are geo-targeted, so they will always list the best deals for your region. Analyze Casino is master of finding mega bonus slots: Use our expertise and save time!

FAQ About Slot Bonus Rounds And Offers

Yes. This means you can try the extra rounds of bonus slots for free, as these games also have a demo version which contains the same features as the real money version. And you can try some of the slot bonuses for free too: No deposit bonuses are a very good example.
To be honest, there are already too many best bonus slots available and it is quite hard to pick a single one. They have different themes, paylines, and bonus rounds. Try them for free and find the one that suits your needs. We recommend picking games with free spin bonuses for the reasons explained above.
Definitely. There are lots of mobile slots bonus online slot games with bonuses, which run on multiple platforms, such as iOS and Android. As a general rule, you can try all the slots with bonus on mobile devices, so give it a go!
A slot's bonus game refer to a mini game or a round within the slot game itself. Some of the most popular slots with bonus games would be: Cleopatra, Book of Ra, Pharao's Fortune, Avalon II and many others.

Play Bonus Slots Online, Find The Mega Bonus Slots Today!

Now, you have learned the difference between slots with best bonus round and slot bonuses: It is time to test your knowledge! First, select an online casino that offers the best bonus slots promotions and become a member. Second, pick one of the slots with bonus and start spinning the reels. There are thousands of bonus slots to pick from and one of them is for you! As always, we will be here to help you – visit us often to see the latest slot bonuses and advantageous promotions. Good luck at the casino!