The bonus slots, also known as video slots with bonus rounds, are one of the most popular slot machines online. The slot games with bonus rounds offer more winning chances and are fun to play as they are usually based on a story and come with impressive graphics. Find below a collection with some of the best free slot games with bonus rounds and play online for free, no registration required!

This option cuts a lot of the repetitiveness out of free slots 777 machines and other free casino games no download offered at SlotoZilla for someone who wants to get straight to the big bonuses and payoffs. Most of all recent slots free games offer this. The button is normally located on the right bottom hand corner of the playing screen. All these online slot machines are totally free slots with no download, no registration, no deposit required! Enjoy free spins bonus and bonus round games, play online progressive jackpots and the super profitable games with the highest RTP percentage.

Slot Games with Bonus Rounds

Slot games, in general, can be divided into online slots with bonus rounds and online slots without bonus rounds.

Slots with bonus games are usually more attractive for players and more fun to play because of the bonus rounds. They’re exciting because you’re always waiting for the bonus round to land and always expecting to win big in the bonus round.

All bonus slots usually have an explanation what the bonus round is about in the game rules. If you want to see what the bonus round is first hand, it’s best to try the games in the free mode first.

How do slots with bonus rounds work?

In order to see what a bonus slot is all about all you need to do is to sign up for an online casino and play the game for free. It’s the same as playing for real money. The only difference is, you don’t have to invest any money. You can read the game rules and the bonus round rules and once you feel comfortable with the game, you can give it a try in the real money mode.

In most video slot games, the bonus round is triggered when three or more scatters or bonus symbols appear on the reels. Once this happens, the bonus round starts and all you can do is to enjoy the privilege and hope to win big.

In general, the bonus rounds are divided into free spins and cash pick bonuses. The free spins bonus is a rewarding round where a player gets a certain number of free bonus games. There are also some other features like multipliers, extra wilds or expanding wilds. The cash pick bonus game usually awards cash prizes for every pick on the reels.

How to win big in the bonus games

One of the most fun features in the online slot machines is the bonus rounds. You get to view secret graphics and gameplay and you are usually given a chance to multiply your potential winnings.

However, did you know that there is a strategy for making the most of these opportunities?

If you don’t believe us, just check out the following…

1. Know your slot

Become familiar with your game and get an approximate feel for how often the bonus round appears. That way you can gauge if the game is being generous or stingy with bonus round appearances when you’re in the midst of playing it. If it’s not giving out too many, it may be time to move to a different slot as the first step to making the most of bonus rounds is actually getting to play them.

2. Use a bonus round hunting strategy

Many professional gamblers sight ‘bonus hunting’ as their chosen strategy when playing online. The beauty of this strategy is its simplicity; play a game until you get a bonus round, win and then leave.

The theory behind this is that you’re leaving every game after getting a reasonable win and each one of those wins add up to increase your overall bankroll, thus giving you more money to hunt more bonuses.

3. Play every line

Of course, it makes sense that you should try to maximise your chances of getting into these bonus rounds. One simple way to do that is to play every line. There are games that only offer bonus rounds to those who max bet, so if your budget is low, give the penny slots a lash and you never know, you might be playing with a bigger bankroll before you know it!

Best Online Slots with Bonus Rounds

There are a lot of great free casino slot games with bonus rounds which have amazing rewards. On some video slot games, the bonus round is incredibly hard to trigger. Still, once this happens the payouts are usually big. These are high variance slots which can pay big in the free spins bonus regime.

Microgaming has a lot of great bonus slots on their offer. Thunderstruck II and Immortal Romance share an almost identical free spins bonus. Once you enter the chamber of free spins you can unlock four different features and choose among different free spins modes.

NetEnt also has a big number of slot machines with bonus rounds. Their most popular video slot game Dead or Alive has a free spins bonus with a sticky wilds feature. Once 5 Wilds land on the reels, the player gets 5 extra free bonus slot games. Win a wild line and the payouts can be well worth the try.

Play Slot Machines with Bonus Games for real money

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18+. New players only. Min deposit £10. Bonus funds are 121% up to £300 and separate to Cash funds. 35x bonus wagering requirements apply. Only bonus funds count towards wagering requirement. £5 max. bet with bonus. Bonus funds must be used within 30 days, otherwise any unused shall be removed. Terms Apply. BeGambleAware.org.

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New customers only. Min deposit is £10. 30x wagering.

T&C Apply

New players only. Min. deposit £20. 35x wagering requirements.

T&C Apply

New eligible UK players only. Select Casino offer on sign-up and deposit. 4 deposits of £10, £20, £50, £100 matched with a bonus cash offer of same value (14 day expiry). 35x real money cash wagering (within 30 days) on eligible games before bonus cash is credited. Spins credited upon deposits; under £50 =10 Spins, £50 or over =25 Spins; on Book of Dead only (3 day expiry, winnings paid in cash). Play Responsibly. 18+ begambleaware.org. Click for full T&C’s.

Bonus Rounds Slots FAQ

What slot machines have the best bonuses?

The great thing for players is that there are a huge number of slots with fantastic bonuses. We couldn’t possibly list them all, but here are a few examples of some amazing bonus rounds. NetEnt’s Dead or Alive has one of the most lucrative with proven wins of 100,000x the stake up for grabs.

Razor Shark from Push Gaming has another amazing bonus round stacked with free spins and multipliers that is capable of hitting 50,000x the stake when things go well.

Finally, Lil Devil from Big Time Gaming has an exhilarating Heartstopper Free Spins bonus round that is also capable of wins up to 50,000x the bet. Check the reviews here to find plenty more great bonuses.

What are the luckiest slot machines?

Some players may view this as a good or bad thing, but there is no such thing as lucky or unlucky slots. Modern, regulated slots are driven by unemotional Random Number Generators. These math models are completely fair, random and unpredictable.

It is possible to have runs of wins or loses, but this does not make a slot lucky or unlucky. Some slots have paid out more than others, such as Mega Moolah. But this is due to their bonus system, and the algorithms that govern play. Never luck.

What are branded slots?

Branded slots are slot games that use some type of famous element in their theme. This could be anything from movies, TV shows, video games, board games, cartoons, bands, and more. Branded slots are popular because they are instantly recognisable and relatable.

When it comes to bonuses, wins, and gameplay, it doesn’t mean they are necessarily better than non-branded slots. But there are some cracking good examples of branded slots all the same.

Are slots random?

Modern slots offered by licensed providers are completely random. Developers power their products using Random Number Generators that ensure that every spin is completely unaffected by the spins that preceded it. For extra peace of mind, online slots and providers are tested by third-party auditors as part of licensing requirements. This ensures that slots are totally fair and random.

Which slot machines have the highest RTP?

When it comes to RTP, 96% has become the unofficial industry average. Anything above that is considered good. Anything under that not so good – depending on how much less of course. The great thing for players is that there are loads of slots that score higher than 96%.

Some excellent examples that were released quite recently include Jackpot 6000 (98.9%), and Mega Joker (99%) both from NetEnt. Another generous slot is 1429 Uncharted Seas (98.6%) from Thunderkick and Retro Reels Extreme Heat (97.5%) from Microgaming. RTP is always a critical stat we look at when reviewing slots.

Do casinos manipulate slot machines?

Regulated, legitimate casinos do not manipulate slot machines. Slots machines have a house edge built-in, so there is no need for anyone to manipulate them. Regulated casinos have slots tested by independent auditors to prove that their slots produce the results they state.

If a casino was accused and found guilty of manipulating slots they could go out of business. It is just not in their interest to manipulate their slot machines.

Should you max bet on a slot machine?

You should only max bet on slot machines if it suits your bankroll limit and betting style. In the past, some slots would only trigger jackpots or bonus features on max bet. Nowadays, this is virtually non-existent.

Now, bet levels of any size have the same chances of launching bonus rounds, free spins, and jackpots. This also includes hitting progressive jackpots. Of course, you should always read the paytable of any new slot to make sure you are clear on the rules.

Are you looking for the best place to play free slots with bonus rounds online? There may be a ton of exciting free slots with bonus games and a seemingly insurmountable amount of slots games options out there, but you need look no further! Slotu boasts over 7.400 slots games to choose from. Plenty of them comes with exciting free slots bonus games and extra rounds to keep your heart racing with each spin. Even better, there is no download, no registration required to play bonus slots. You never know when you could be a winner, so why not stop by and try!

It’s no mystery that casino slots have come a long way since the basic three-reels, sevens and fruit machines, and while Slotu offers all of those slots games your playtime will go a lot further when you realize the variety that we have to offer. We’re spicing things up with our fantastic video slots selection, and introducing the most comprehensive selection of free slots with bonus rounds. They come in all types, to suit any kind of player. Sure you’d like to learn more!

Free slots online bonus features

With slots bonuses in mind you are already a step ahead of the game. Many online players don’t know to look for free slots games with bonus rounds, or will not even pick a slot game based on its bonus features? This could very well be because they don’t know enough about them? Do you fall into that category? Not to worry, we’ll break it down for you. Bonus slot machines or bonuses in general are features in slot games that can range from free spins, free games, spin and bonus multipliers, or double or nothing features, just to name a few.

With free online slots, the variety is endless, whereas before, players did not have nearly the range to choose from as they do today. Much to the delight of slots players, there are new exciting bonus games slots in development each day! So forego those old fruit symbols, we have scatter symbols, wild symbols, expanding symbols and multiplied paylines all to make these slots games much more fun to play!

Why are slot machines with bonus games better?

Simply put, slot machines with bonuses are the best way for eager slots players to increase their chances of winning exciting prizes, bet multipliers, and unlockable features of the slot game, which players might not readily know about. Otherwise, you would just be playing a boring old slot game, so why not make it more exciting with bonus features! With free online casino slots with bonus rounds, have everything they need at their fingertips to enjoy a fully immersive slots game experience. You can play the bonus slots anywhere, anytime and at any device you like – for free or play the slots for real money if you feel lucky today and hit the jackpot!

Regardless of the theme of the slot machine that you decide to play, you always want to pick a slots game with bonuses to maximize your gameplay. Just ask any serious online slots player; we guarantee that they will think likewise, because the only thing better than hitting a slots jackpot, is hitting one with bonus games. It just makes winning that much easier. Take understand slot machines even deeper and increase your winnings, read our tips how to win on a slot machine.

Get ready for some exclusive slot bonus games!

How to trigger a slots bonus feature?

The beauty with slots with bonus features is that they occur at random at any time during your slot game, and it doesn’t take much to trigger a free slots bonus! A trigger occurs when particular symbols line up on the reels in a splash of sound and color.

The most common symbols to trigger these are Wild Symbols or bonus Scatters, which in addition to activating slots with bonus feature, will also pay handsomely whenever they land the reels! Usually, a minimum of three scatter symbols must land, sometimes in sequence or sometimes simply anywhere on the reels. The best part is that the more bonus symbols that land, the rewards you will see in return. Re-triggers are another spectacular feature of slots bonuses, because you can strike gold consecutively, not just once!

Wilds and scatter symbols

Each free slots game with bonus rounds will feature a wild symbol unique to that slot game. It is perhaps the most rewarding symbol in the slots game. Wilds will usually substitute for all symbols, and in some cases scatters, and will boost your odds striking pay dirt with a winning reel combo. Here are the most common symbols:

Stacked Wild: These types of wilds will stack up one above the other, covering the reels before a potential a player is rewarded. It’s the most coveted symbol to look for.

Sticky Wild: These types of wilds stick to the spinning reels and will remain in place for a particular number of spins, further increasing you chances of hitting that winning combination.

Expanding Wild: These types of wilds can appear anywhere on the reels during a spin, but are sometimes designated to particular reels. Once they hit, they will expand to cover their reels, and reward a player handsomely.

Scatter symbol: These types of symbols are also unique to the game in that a player usually needs three or more to activate the free slots bonus round feature. They will also pay out big, and can be retriggered at any point during the game.

All of the aforementioned symbols, can also activate free slots bonus rounds, making it that much more fun to play!

The most popular bonus features

Now that you know how to activate those big wins, you would probably like to know about the different types of free slots bonus features that exist. Most free slots with bonuses will have a range of bonus features unique to each game, but it’s also common to trigger more than one bonus extra per in a single game. Here’s a look at the most popular ones:

Accumulator Slots Bonus – This feature has a player seek and gather extra items to win big rewards and activate additional hidden features in the game.

Free Spins Slots Bonus – This feature is triggered by hitting one of the featured symbols, either scatter or wild, and will reward a player with a shower of free spins, so they can play risk free for a chance at multipliers.

Free Games Slots Bonus – This feature is a second screen bonus that pops up after a scatter or wild is triggered, it will unlock a hidden free game feature where the player can win additional whopping prizes, jackpots and staggering bet multiplier and retriggers.

Free Online Slots Games With Bonus Rounds & No Download

Multiplier Bonus – This feature will take whatever wins you hit during a spin on the reels and multiply your wager and rewards based on how many symbols and paylines line up, it can occur during normal play or during an exciting bonus game.

Hidden Feature Bonus – This feature is an unlockable bonus that occurs during the bonus rounds, essentially it’s a bonus within a bonus, and will earn a player exciting additional rewards to add to their wins.

Autoplay feature

Don’t forget to check out the Autoplay feature on all of your favorite bonus slots. To set it all you need to do is turn it on at the bottom or side of the screen and start watching those reels spin to unlock those spectacular bonus games and features.

Free Slot Machines With Bonus Rounds No Downloads Online

This way you don’t have to manually click to spin the reels each time you play, so you can sit back, relax and start stacking up those big wins. You can choose to deactivate it at any point in the game, once a set of reels has stopped spinning. Slotu is host to a ton of free slots games each with the Autoplay feature. It’s one of the best things about playing free slots online.

Popular free slot games with bonus features

For a list of free bonus slots machines, you need to look no further than our games list. Simply choose the genre, developer or number of reels you wish to play and you’ll be all set to play. If you aren’t sure where to start, here a small glimpse at what’s in store. Some of the best free slots with bonus games are Aircraft, Wild Fire Riches, The Three Stooges, Orc vs. Elf, The Big Bopper, Ski Jump, Dolphin Quest, Bubble Bubble, just to name a few.

They offer non-stop bonus action, and are just some of the gems that Slotu.com has to offer. They come complete with excellent bonus play built into each game. All you need to do is find the one that suits you best. You won’t get bored, because there’s just so many to choose from! Why not start spinning the reels and see what free bonus slots suit you best!

Now that you know all about free slots with bonus games, it’s time to match our obsession with slots games and start spinning those reels on your own. With new free bonus slots games added daily, we’re positive that our selection of free slots games will get you fired up as you start winning big.