Slot machines are the most popular games at land-based and online casinos. They are very easy to play, they offer satisfying payouts, and include additional games, if you pick the right ones. Yes, we are talking about slot machines with bonus games. These slots are a separate category and they can be summarized as “games within a game”. Basically, while you are spinning the reels like usual, you can trigger a bonus round/feature and start to play a completely different game. More importantly, you get to keep any prize you won during these rounds:

Slots with bonus games are really that good and fun. This online slots guide is dedicated to them and includes everything you need to know about slot machines bonus rounds. You will learn what they are, which ones are better, and where to play them – in other words, this is the most comprehensive guide you can read about bonus games slot machines.

Best Casinos To Play Best Bonus Slot Machine Games

So, if you want to play slot machines with bonus games, which online casinos you should prefer? Which ones offer you free slot games with bonus rounds no download no registration? More importantly, which ones make slots with bonus games a part of their casino welcome bonus? To save you the trouble, we did the research and found the answers to all these questions – you can see them below. The online casinos we picked offer you the best slot machines with bonus games. In addition, they also have free slot games with bonus rounds no download, so you can play these games without spending a single penny and downloading anything. But the best part is, they are the most secure, safe, legal, and fair casino sites you can find – we made sure of that.

Our Top Casinos With Bonus Slot Machine Games Picks

Zet Casino
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Get 200 free spins at the start and use them on bonus games slot machines. Use your 500 EUR casino registration bonus to play more.

Don’t miss the SPECIAL OFFER. You get 15 free spins only with a sign up from our site to ZetCasino.

William Hill Casino
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Deposit 10 EUR, get 10 free spins – simple. William Hill offers the best slot machine bonus games predetermined.
Cloud Bet Casino
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You can win 100 free spins every Tuesday and start playing with 1.000 free spins on Book of Dead, one of the most popular slots with bonus games.

When you become a member of these casinos, don’t forget to claim your casino registration bonus at the beginning. And after that, take advantage of the casino reload bonus every time you make a deposit. This way, you can create an extra budget to play slots with bonus rounds. And if you want to see more casino sites to play free online slots with bonus rounds, check out our website: We have a recommended casino site for every country in the world and free online video slot machines with bonus games for all kinds of players.

What Is The Meaning Of Slots With Bonus Games?

Slot machine games with bonus features are “regular” slots – they are not different from others. You are still trying to land the same symbols next to each other on a pay line, this is the main way of getting a payout. However, by landing a set of specific symbols or just being lucky enough, you can trigger an additional feature that can give you additional prizes. This feature is called a “bonus” for short and it can be anything you can imagine: Free spins, mini-games, guessing round, even a platform game. (We will give examples to the most common bonus features below.) You trigger these bonuses with different methods and win cash prizes or useful things that will help you to score more winnings, like additional wild symbols. In any case, slot machines bonus rounds will give you something good and most of the time, you will win additional prizes.

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Practical Examples To Slot Machine Games With Bonus

So, what do we mean with slot machine bonus games? What kind of “games” can we expect to see? We gave some simple examples above, but now it is time to go into detail. First of all, we should use “online free slots with bonus feature” term – using the term “games” can be a little misleading. Basically, bonus slot machines games are special rounds that will offer you an extra payout once you complete a simple task. This task can be spinning the reels for free, or finding a particular symbol among others. In this context, you can expect to see the following types of “tasks” in free slot machines with bonus games:

Free Spins Bonus Round
Free spins are one of the most common slot machines bonus rounds. As you know, spinning the reels of a slot machine will cost a certain amount of money each and every time. But once this feature is triggered, you get to spin the reels entirely for free and still keep the prize. The number of free spins will be different in each game: The best slot machines can even offer hundreds of spins. But in general, we can say that the average number changes between 20 and 50. The free spins bonus round is usually activated by landing three scatter symbols together anywhere on the reels (they don’t have to land on a pay line.)
Pick Me Bonus Round
This is also a quite popular feature and lots of free slots with bonus rounds include it. As the name implies, you are asked to play a mini-game, where you need to “click” on symbols to reveal prizes. This is like a minesweeper game: You get a couple of “closed” symbols and open them by clicking. Each symbol can contain a prize (usually cash payout) or a sign that will end the round (like finding the mine in the minesweeper game). You play the game until you find the “mine” and keep the prize. It is a very simple game but lots of no download free slots with bonus rounds include it. This feature is usually triggered by landing a set of specific symbols, usually scatters.
Gamble Bonus Round
This is an interesting feature because it is not available on free online slot machines with bonus games no download. In other words, this feature can be used only when you play with real money. We see this feature on Novomatic slots with bonus rounds the most, but it is used by other developers too. The idea is simple: This is a “guessing” game and you are asked to predict the color or the suit of a closed play card. If you guess correctly, you can double or even quadruple your payout. But if you are not right, you lose all of your prize. A lot of slot machines with bonuses offer this feature and it can be quite tempting, but we do not recommend playing it. This is because of a simple reason: If you are not lucky enough, you will lose all of your payout. Gamble bonus rounds are activated automatically after every winning spin; they can be launched on-demand.

There are, of course, other kinds of bonus slot machines games too, but these three are the most common ones: The majority of free online slot machines with bonus games will offer you one of these features. And if you find a different one, don’t worry: Bonus games slot machines are very easy to play and they have simple rules – you can understand what to do easily. Reading the paytable before starting to play slots with bonus games will help you, because this screen will contain all the information you need about the bonus rounds/features.

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Slot Machines With Bonus Games Casino List

Rank

Casino Name

Bonus

Casino License

Rating

Get started

1
300 EUR + 150 Free Spins
Malta Gaming Authority
Rating 9.99 out of 10
2
250 EUR And 50 Free Spins!
Malta Gaming Authority
Rating 9.98 out of 10
3
300 EUR and 22 Bet Points 250 £ + 22 Free Spins (UK)
United Kingdom Gambling Commission
Rating 9.97 out of 10
4
100% up to ‎€1500 + 150 free spins
Curacao eGaming License
Rating 9.96 out of 10
5
500 EUR + 200 Free Spins
Netherlands Antilles
Rating 9.96 out of 10
6
up to € 2500 welcome bonus
Curacao eGaming
Rating 9.95 out of 10
7
100% up to 5 BTC
E Gambling Montenegro
Rating 9.94 out of 10
8
100% Bonus Up To £300
UK Gambling Commission
Rating 9.92 out of 10
9
200 % up to €200
Malta Gambling Authority
Rating 9.91 out of 10
10
up to 1.5 BTC + 250 free SPINS!
Curacao eGaming
Rating 9.90 out of 10
11
100 % Up To €300 Casino Welcome Offer
Curacao eGaming License
Rating 9.89 out of 10
12
WIN UP TO 500 FREE SPINS ON STARBURST!
United Kingdom Gambling Commission
Rating 9.83 out of 10
13
Casino Welcome Bonus - 100% up to €100
Malta
Rating 9.82 out of 10
14
600€ + 200 FREE SPINS
Malta
Rating 9.82 out of 10
15
Get €200 Bonus + 20 Free Spins
Curacao eGaming License
Rating 9.80 out of 10
16
200% Bonus up to 200 EUR + 70 free spins
Curacao eGaming License
Rating 9.79 out of 10
17
100% Up To $2000
Curacao
Rating 9.77 out of 10
18
€200 EUR + 100 Free Spins
Malta
Rating 9.75 out of 10
19
100% Match Bonus up to 800 EUR
Malta
Rating 9.75 out of 10
20
€ 200 + 200 free spins.
Malta Gambling Authority
Rating 9.72 out of 10
21
300% UP TO 3000 EUR!
Curacao eGaming
Rating 9.72 out of 10
22
110% UP TO 1.5 BTC
Curacao
Rating 9.69 out of 10
23
up to € 2500 welcome bonus
Malta Gambling Authority
Rating 9.63 out of 10
24
100% Bonus up to $€200 + 20 Free Spins
Netherlands Antilles
Rating 9.60 out of 10
25
Total Package: $150 + 50 FS
United Kingdom
Rating 9.58 out of 10
26
150% Match up to €1,500
Curacao
Rating 9.55 out of 10
27
Casino €300 Bonus + 200 Free Spins
Malta
Rating 9.52 out of 10
28
BONUS 100% UP TO $100 + 20 FREE SPINS
Netherlands Antilles
Rating 9.52 out of 10
29
200% deposit bonus up to €$600 + 100 real money spins!
Netherlands Antilles
Rating 9.51 out of 10
30
400% UP TO $4000
Curacao
Rating 9.51 out of 10

How To Play Slot Machines With Bonuses & Activate Their Special Features

Playing free casino slot games with bonus features is easier than you think and not different than playing “regular” slots. First of all, your goal is still the same: Land at least three same symbols next to each other on a pay line, to qualify for a payout. The prize amount will be determined according to the symbol set you placed and how many symbols you land. In other words, the usual slot rules apply to slot machines with bonuses too. The only difference is that these games have a bonus round/feature you can activate by doing a specific thing, like landing three scatter symbols together at the same time.

Let’s use Immortal Romance slot to explain how to play slot machine free games bonus rounds. This is one of the new free slots bonus games that is often chosen for casino welcome bonus campaigns, so you can expect to see it features in other bonus slots too. Each game will be slightly different of course, but the explanations & steps below can be used for all slot machines with bonus games. So, we can show you what to do by using the Immortal Romance slot as an example, and you can simply use this information to play other bonus slot machine games too.

Now, the first thing we will do is checking the paytable. You must do this for all slots with bonus games: The paytable shows how many bonus rounds/features are available in the game and how you can activate them. Please note that there is no single and fixed activation method for slot machine bonus games. While landing three scatter symbols anywhere on reels is usually the way of doing it, each slot may require a different thing. By reading the paytable, you can easily understand how to activate the bonus.

Further Information

The paytable of Immortal Romance slot tells us the bonus feature of the game is the free spins round. And in order to activate that round, we need to land at least three scatter symbols anywhere on reels. Once that happens, the game will offer us several options, each one with a different free spin amount. This part is not important: We learned how to activate the bonus feature. It requires landing three symbols and is completely random – there is nothing we can do to increase our chances to trigger the bonus. So, what we can do is;

  • Determine how many coins we will bet per spin, from the section that says “coins”,
  • Click the “spin” button to start the game,
  • Hope to be lucky enough to see three scatter symbols anywhere on reels and keep spinning them until this happens.

We can, of course, still win prizes while waiting for the bonus round to trigger: Landing symbol sets with at least three symbols in them will qualify us for a payout. In other words, the bonus round is not the only way of getting paid: Slot machine bonus games just give you another chance to score a winning.

Which Platform Is Best To Play Slot Machines With Bonus Games?

Back in the day, choosing a platform was important, because it directly affected the number of slot games you can play. The Flash codebase, for example, did not work on iOS and as a result, iPhone users could not play free slot games with bonus features if they are developed with Flash. This is not the case anymore: Thanks to the HTML 5 technology, you can play free slot machines with bonus rounds on any platform, device, and operating system nowadays. This technology makes slots with bonus games run on browsers, so it doesn’t matter what type of device and/or operating system you’re using. Simply put, what kind of “software” you are using does not matter anymore: As long as you have a device that has a browser and an internet connection, you can play free casino slots with bonus rounds. However, as can be expected, each platform has some advantages and disadvantages – we are listing them below.

In regards to “numbers”, Android is not as advantageous as the iOS. The Play Store has fewer applications so you have less options to play bonus slots. However, it should still be the first choice of an online gambler due to a very simple reason: Side-loading. You can download Android applications as APK files from third parties (i.e. directly from the casino site) and install them on your phone. In this context, it is much better than iOS.
The majority of online slots guides will recommend iOS to play bonus slot machine games because its official store is full of apps – in regards to pure numbers, iOS offers a lot more bonus slots applications to download. However, side-loading is not possible in this operating system and if the App Store does not contain an app, that’s it: There is no way to download & install it “manually”. If gambling is restricted in your country, do not use iOS devices because the App Store will filter all real money mobile casino apps automatically. You will be restricted to free casino slot games with bonus rounds, and won’t be able to play these games with real money.
Tablet PC
Since each tablet PC is either Android or iOS, the explanations above apply to them too. However, we can say that they are the best devices to play Mobile Casino games because of the screen size. Whether you are playing a slots tournament or card game, the screen size will make your job easier & practical.
Desktop PC
Desktop PCs are not as practical as mobile devices but they offer more slots with bonus rounds and higher graphics quality. The majority of gamblers still prefer their PCs to play slot machines games with bonus rounds because they can multi-task, play more than one game at the same time, and take advantage of mouse + keyboard controls they are used to.

To be honest, there is no single “best” platform for playing bonus slots: Each of these platforms has its pros and cons. But we can recommend using your PC if you are at home and picking an Android tablet to use outside – that will give you the best of both worlds. But, as always, the choice is yours: When it comes to playing bonus slot machines games, there is no “wrong” choice.

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Basic Tips & Tricks For Slot Machines With Bonus Games

Tips & Tricks

Join a slots tournament

Take advantage of the match bonuses

Prefer simple games and high RTP rates

Join a slots tournament
Slot tournaments are excellent events to play slot machine games with bonus. Every spin you make and every wager you place will give you points, which can be used to increase your rank and have a shot at the grand prize. So, if there is a slots tournament, make sure to join it.
Take advantage of the match bonuses
You will get a casino registration bonus at the beginning and a casino reload bonus after, every time you make a deposit. Both will give you lots of free spins to use. Pick the best slots with bonus games to use these spins or make sure that they can be used on these types of games.
Prefer simple games and high RTP rates
Progressive jackpots are slot machines with bonus games too, but their RTP rate is too low. In other words, your winning chances are lower than usual. Simple video slots and fruit machines may not offer prizes that big, but they have higher RTP rates, which means your winning frequency will be higher too. So, basically, simplicity is the key to finding the best slots with bonus games.
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FAQ About Slots With Bonus Games

In general, yes. Since the bonus round will let you win additional prizes, the overall payout will be bigger than “regular” slots. However, note that the RTP (return to player) rate is still the key here: If it is low, the overall payout frequency will be low too. This means a regular slot with a high RTP rate can pay much more.
Yes. You can find a slot machine app with bonus games on the official application stores or play free slot machines with bonus rounds no downloads on your browser. All bonus slots can be played on all kinds of mobile devices without a problem, either by using a native app or the mobile browser.
Yes, this is still possible. Some online casinos offer a program to download, and once you install it, you can start playing most of the casino games offline, free online slots with bonus rounds included. However, we don’t recommend this: The latest slot machines with bonus games are developed by HTML 5 and they are usually not available on these offline platforms.
The RTP rate. Even free slots with bonus rounds have an RTP rate, and it should be always 95% at least – the higher the better. RTP rates determine what your winning frequency will be and how much you will lose in the long run. You can see this information in the paytable of bonus slots.