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!

Slot Games with Bonus Rounds

Video slots, especially 3D slots, are the geniuses of entertaining bonus games, for they often make them bright and animated, or give them a shape of mini-games featuring video parts with storylines following the game’s plot and theme. Nevertheless, there are some free casino slots with bonus rounds where the actual bonus game is much simpler. Free Slots – Play 7780+ Free Online Casino Games. You’ve just discovered the biggest online, free slots library. Like thousands of slots players who use VegasSlotsOnline.com every day, you now have instant access to over 7780 free online slots that you can play right here.

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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Slot Machines Free Bonus Games

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.

Slots For Free With Bonus Spins

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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.

Slot Machines With Bonus Games

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.

Everyone deserves a bonus every now and then and that’s definitely the case in slot games. When you spin the reels having decided how many paylines to play and how many coins you want to play, the end result of that spin determines whether you have any winning combinations.

However, life isn’t all about getting the required number of matching symbols to get a win. Slot games have a variety of bonus games that can be triggered in several ways. This can be via a certain number of scatter symbols appearing on the reels or a bonus symbol landing on the reels.

It’s always a great moment when the first few reels see key symbols land on the reels and you just wait to see if you can get the one you need to get you into a bonus round. Usually games introduce a dramatic piece of music as the remaining reel(s) spin.

Bonus games are most commonly found in five reel slot machines. With just three reels there are usually just a handful of paylines and a wild symbol. With five reels though there’s more space to produce more complex games and that’s where scatter symbols and bonus games can come into play.

When you play a slot that contains a bonus game that is the key moment you’ll find yourself waiting to trigger. Unless you can land five matching high-paying symbols, it’s in the bonus game where you can really win large amounts of cash which explains why some of them aren’t exactly easy to trigger.

There are several different kinds of bonus games and they are often associated with the theme of the slot. For example in the pirate-themed ‘Chests of Plenty’ game from Ash Gaming, the bonus game features a treasure chest. It’s a pick ’em game which is a popular form of bonus game. As you might have guessed you have a choice of items to pick from, in this case gems. Your task is to find three gems of the same value to win a cash prize.

There are plenty of variations on this theme, sometimes the pick ’em feature simply determines the size of multiplier and number of free spins that you have earned.

Talking of free spins, that’s one of the most popular types of bonus games. You usually need three scatter symbols or free spin symbols to trigger the game. The number of symbols triggering the bonus round can also determine how many free spins you get. Free spins rounds are always popular as they can be re-triggered and are usually attached with a multiplier for all wins achieved during the bonus round. Often when you do get into the free spins there are added features that can help you get more wins. These include several different types of wild symbols.

In the Fremantle Media game ‘Hole in the Wall’ the bonus game sees you having to play a second screen game (as is often the case with bonus games in five reel games) and choose a contestant and hope they can make it through the strange shaped holes in the wall to win a multiplier.

Some games require you to collect a certain number of items during a game. For example in the ‘Castle Builder’ slot from Rabcat, you need to collect building equipment before you can try and build the castle for the Princess to live in.

Best Bonus Slot Machines

It’s important that you know just how the slot works so make sure you have a good look through the paytable. Also have a few free games because that way it won’t cost you anything to trigger the bonus games and you can see just how they work.

Bonus Games are a great way of building up your account balance. Just don’t spend too much trying to trigger them in the first place.