Free spins are known to be some of the best bonuses around, offering you the chance to play new and exciting slots without risking your own cash. Lay free online slots to learn more about the games and to win free money. Free slots are available through smart slots bonuses. Here are some of the best slots bonuses that you will find in online casinos: Free spins – Casinos love to give new players free spins. You can get them as a no deposit bonus or as a reward for your deposit. Slots with bonus games - Discover some of the best slot machines with bonus games. The exciting bonus rounds are the best way to win big on slots! The World's online gaming authority since 1995.
Finding a good bonus offer to play slots games in an online casino is easy. Pretty much every online casino offers a tasty welcome offer to whet your appetite. Once you have signed up, you'll have even more promotions and special offers thrown at you to keep you there for the long haul. The choice can be a bit overwhelming, so we've analysed and compiled the best online slots bonuses out there right here on this page.
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| Name | Slots | Bonus | Features | Button | T&C |
|---|---|---|---|---|---|
| Mansion | 216 Slots | Up to £500Welcome Offer | Unique Promotions | Play here! | Full T&Cs apply. New customers only. Min deposit £20 max bonus amount £500. First deposit: 100% up to £200. Second deposit: 50% up to £300. Wagering 40x for each bonus. Game weighting applies. Cashback: 5% cashback on first and all other deposits during week 1, 10% cashback on all additional deposits taking place in week 2 only. Bonus betting limits: slots - £5 all other games - 10% of bonus amount. |
| Betway Casino | 431 Slots | 100% up to £250Welcome Bonus | Unlimited Validity | Play here! | Full T&Cs apply. *New customers only. Opt-in required. 100% Match Bonus up to £250 on 1st deposit of £20+. 50x bonus wagering applies as do weighting requirements. Debit Card & PayPal deposits only. Irregular gameplay may invalidate your bonus. |
| Dunder | 1099 Slots | 100% up to £100 +120 Free Spins | Frequent Promotions | Play here! | Full T&Cs apply. Minimum deposit: £20. 20 spins in Book of Dead on reg. 100% bonus up to £100 and 100 bonus spins. First 50 bonus spins credited on deposit, Second 50 bonus spins credited the following day. Valid on first deposit only. Wagering on reload bonus: 60x. Wagering on bonus spins: 30x. Wagering must be completed within 30 days. Max bonus bet £5. Bonus is valid for a total of 21 days. Game weighting and standard bonus terms apply. |
What to Expect From a Slots Casino Bonus
Online slot machine players get the best deal when it comes to online casino offers. Generally speaking, all welcome offers can be used to play slots games. Some casinos stipulate that you can't use the extra cash on other casino games such as roulette and blackjack, or perhaps only a small percentage. However, it's always wise to pay attention to the terms and conditions.
Many online casinos match your first deposit up to a specified amount. This money is often added to a separate account so you can play, but not withdraw from it. You may also have to fulfil wagering requirements to unlock the offer (and the winnings made with the bonus money). You'll find the most common online slots bonus types below.
Free spins are often included as part of a slots welcome package. This is a popular way of enticing new players to a casino because you get a chance to try out the slots games for free while potentially winning real money. There is a slight catch; you'll still have a number of play-throughs to satisfy even if you get lucky building a bankroll with a promotion such as this.
Online Slots Casino Bonus Codes
Bonus codes are used to distinguish offers from each other – like a no-deposit bonus for new customers or a special online slot machine bonus. Online casinos can also use these codes to determine where a new player has been referred from, and as such, partners can stand to profit from the referral. Many online slots bonus codes have the intention of enticing players to the newest slot sites, but some are incentives for existing players. They can unlock the best bonus slots casinos have to offer.
Bonuses for Specific Payment Methods
All welcome bonuses can be used to play online slot machines, which means it's rare to find additional offers for this type of game. However, it's possible to find promotions related specifically to the type of payment method you are using. New payment methods are springing up all over the place, and online casinos are keen to get on the bandwagon to ensure making deposits is as easy for you as possible. Offering an online slots bonus for depositing using a certain payment method is a novel way to encourage your participation. For instance, 888casino offers bonuses for paying with PayPal.
No-Deposit Casino Bonuses
A no-deposit bonus gives you the chance to sign up with an online casino and start playing without depositing money. It's a great way to get your foot in the door and test out the slots games on offer. This tends to be the best slots welcome bonus you will find, and it's often a deciding factor when a punter decides to join an online casino.
There are plenty of generous offers out there to choose from, but it's important to consider the finer details when assessing which no-deposit bonus suits you best. Sometimes the offer doesn't take the form of real cash, and you may have to wager a minimum amount of times in order to access the money.
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No-deposit free spins enable you to play for free after signing up at an online casino. You can play immediately and in order to get your hands on your winnings you may need to match the minimum wagering requirements. Some casinos take a different approach by requiring you to make a deposit before getting your free spins. In this instance, the amount of free spins on offer may be determined by the amount you deposit. Wagering requirements will apply.
Wagering Requirements
Most slots signup bonuses – such as the types on this detailed list on Wikipedia – don't mention the wagering requirements until you get down to the small print. Keep an eye out for this because it is very common. You will normally only unlock the stated bonus – and the winnings made with the cash– once you have wagered a specified amount of times. If you are told the wagering requirements are 20, and the bonus is £50, you have to wager 20 x £50 = £1000 before you can get your hands on your winnings. Additionally, some casinos insist that you must wager the combined total of the amount and the amount you deposited.
Wagering requirements also tend to apply to free spins. For example, if you win £100 using free spins, a wagering requirement of 30 dictates that you have to wager £100 at least 30 times before being allowed to withdraw your prize. You should always read the terms and conditions to avoid a misunderstanding.
Declining the Bonus Offer
The terms and conditions associated with online casino bonuses are enough to scare some people off. The advantage of playing without a bonus is that you can withdraw your winnings at any time, instead of complying with a wagering requirement you may never meet.
If you are keen to play without the online slot machine bonus then we'd advise you to contact the casino's customer services before signing up and making a deposit. This is because some welcome bonuses are automatically credited to your account. Most of the time they are not, and in such cases, you simply have to uncheck a box when signing up.
FAQ's
How Can I Get the Best Slots Signup Bonus?
Aside from the amount on offer, look for a bonus offer with reasonable playthrough requirements. If you have to wager your deposit amount over 50 times before being able to withdraw any winnings, then you should be sure you are in it for the long haul. Keep an eye out for deals being offered by other online casinos, and always read the terms and conditions. You can also head to our best online casino ranking to further inform yourself about online slots casinos.
What is a Bonus Hunter?
A bonus hunter is someone who stalks online casinos and regularly jumps ship to sign up for the best bonus slots offers around. It's something frowned upon by most casinos, and it can lead you to become blacklisted.
What if — one day — you entered a slot machine bonus round and walked out $15,000,000 richer? For some lucky players, that has actually happened.
Long gone are the days when you spun 3 reels with fruit symbols on them and won a few free spins as a bonus round. These days, there are all sorts of awesome, entertaining bonus rounds which make video slots appear more like video games.
I've played thousands of slots in my time, and thousands of bonus rounds, too. I'm going to share the best I've encountered here.
Unsurprisingly, most of them give you the chance to win huge amounts of cash, which is part of what makes them so great to begin with!
The Mega Fortune Bonus Wheel
There are plenty of generous offers out there to choose from, but it's important to consider the finer details when assessing which no-deposit bonus suits you best. Sometimes the offer doesn't take the form of real cash, and you may have to wager a minimum amount of times in order to access the money.
Free Spins for Slots Games
No-deposit free spins enable you to play for free after signing up at an online casino. You can play immediately and in order to get your hands on your winnings you may need to match the minimum wagering requirements. Some casinos take a different approach by requiring you to make a deposit before getting your free spins. In this instance, the amount of free spins on offer may be determined by the amount you deposit. Wagering requirements will apply.
Wagering Requirements
Most slots signup bonuses – such as the types on this detailed list on Wikipedia – don't mention the wagering requirements until you get down to the small print. Keep an eye out for this because it is very common. You will normally only unlock the stated bonus – and the winnings made with the cash– once you have wagered a specified amount of times. If you are told the wagering requirements are 20, and the bonus is £50, you have to wager 20 x £50 = £1000 before you can get your hands on your winnings. Additionally, some casinos insist that you must wager the combined total of the amount and the amount you deposited.
Wagering requirements also tend to apply to free spins. For example, if you win £100 using free spins, a wagering requirement of 30 dictates that you have to wager £100 at least 30 times before being allowed to withdraw your prize. You should always read the terms and conditions to avoid a misunderstanding.
Declining the Bonus Offer
The terms and conditions associated with online casino bonuses are enough to scare some people off. The advantage of playing without a bonus is that you can withdraw your winnings at any time, instead of complying with a wagering requirement you may never meet.
If you are keen to play without the online slot machine bonus then we'd advise you to contact the casino's customer services before signing up and making a deposit. This is because some welcome bonuses are automatically credited to your account. Most of the time they are not, and in such cases, you simply have to uncheck a box when signing up.
FAQ's
How Can I Get the Best Slots Signup Bonus?
Aside from the amount on offer, look for a bonus offer with reasonable playthrough requirements. If you have to wager your deposit amount over 50 times before being able to withdraw any winnings, then you should be sure you are in it for the long haul. Keep an eye out for deals being offered by other online casinos, and always read the terms and conditions. You can also head to our best online casino ranking to further inform yourself about online slots casinos.
What is a Bonus Hunter?
A bonus hunter is someone who stalks online casinos and regularly jumps ship to sign up for the best bonus slots offers around. It's something frowned upon by most casinos, and it can lead you to become blacklisted.
What if — one day — you entered a slot machine bonus round and walked out $15,000,000 richer? For some lucky players, that has actually happened.
Long gone are the days when you spun 3 reels with fruit symbols on them and won a few free spins as a bonus round. These days, there are all sorts of awesome, entertaining bonus rounds which make video slots appear more like video games.
I've played thousands of slots in my time, and thousands of bonus rounds, too. I'm going to share the best I've encountered here.
Unsurprisingly, most of them give you the chance to win huge amounts of cash, which is part of what makes them so great to begin with!
The Mega Fortune Bonus Wheel
When it comes to slot machine bonus wheels, most people think of Mega Moolah by Microgaming first. While that is a pretty cool feature, I personally think the Mega Fortune bonus wheel is slightly better.
This is a feature that will get your adrenaline pumping for sure. It's a multi-layered wheel with cash prizes and several progressive jackpots up for grabs.
So, how do you win the Mega Jackpot and walk away a millionaire? Each time the wheel spins, you need to land on an arrow to proceed to the next layer. If you make it all the way to the center, you can officially call yourself filthy rich.
This feature can actually be triggered fairly often in Mega Fortune. A few days ago I was able to unlock it 3 times within the same quick session.
The Scary Rich 3 Free Spins Round
Unless you're a hardcore slots player like myself, you might never have heard of Scary Rich 3 from Rival Gaming.
It's a horror-themed slot which is relatively unremarkable overall, apart from the cracking free spins bonus round. If you manage to trigger it with 5 scatter symbols you will get 666 free spins, which I can tell you from experience takes around half an hour to play through.
While that's a heck of a lot of free spins and is enough to make this bonus round noteworthy by itself, there are also expanding wilds in play throughout. These significantly increase your chances of making winning combinations.
As I said before, it's one of those slots few have heard of, but I have personally never seen another slot offering as many free spins in one feature.
The Avalon II Grail Bonus Feature
Sometimes a bonus feature is actually multiple bonus rounds all rolled into one, and that's the case with the Grail feature in Avalon II from Microgaming.
If you manage to trigger this feature, you will have 8 different entertaining possibilities. There's a dice roll game, 3 free spins rounds with up to 20 free spins and dynamic multipliers in one of them, 2 picking rounds with up to 160x your stake available, a fighting game with cash prizes, and a bonus wheel round, all within one feature.
This feature also has somewhat of a storyline to it, in which you need to retrieve 'the grail' and bring it back to Avalon. It's got epic graphics and sound effects, which I have come to expect from Microgaming.
Why do I like this feature so much? Because it doesn't get boring even when you trigger it multiple times within the same game. Oh, and you can win serious money, too.
The Breakaway Free Spins Round
Breakaway is an ice hockey themed game from Microgaming. It's got loads of extra features, but the one which stands out most to me is the free spins round.
There are up to 25 free spins offered, which is nothing remarkable in and of itself, but all wins are instantly boosted 1,000% by a 10x multiplier.
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Breakaway has a 125,000-coin jackpot, which is also worth playing for. Still, this is all about bonus rounds, and I definitely want to mention the free spins round here. Multipliers of 2x and 3x are common, but 10x deserves a special mention.
If the ice hockey theme doesn't appeal, then either Football Star or Rugby Star also have free spins rounds with 10x multipliers. Check them out.
The Hall of Gods Picking Feature
Hall of Gods by NetEnt takes you back to the mythical era when Odin, Loki, and Thor ruled the minds of the Nordic people.
Thor's hammer is a symbol we still recognize today, and it's an important one in this bonus feature. How it works is that you take Thor's hammer and smash various shields on the screen for cash prizes.
What makes this relatively simple feature so special? The fact that you can win millions instantly by finding one of the Hall of Gods progressive jackpots behind the shield you smash.
This feature has the power to make you a millionaire in a few seconds flat, and I think that makes it special, even if I haven't yet had the good fortune to win it.
The Gonzo's Quest Avalanche Reels
Gonzo's Quest is one of NetEnt's most popular slots of all time. It's a simple game, but it has one brilliant feature I really like.
The 'Avalanche Reels' make it possible to win multiple consecutive times off one single spin. This means that when you create a winning combination, the symbols involved disappear and are replaced by new ones, potentially unlimited times in a row.
While this is not totally unique in itself, Gonzo's Quest adds extra spice to the rice by adding a dynamic multiplier element. For each consecutive win, a multiplier will increase by 1x, up to a maximum of 5x.
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Just imagine 5 wins in a row from one spin, with the fifth win boosted 500% automatically (after all the others). That's why this feature deserves to be included on this list, in my view.
The Mega Moolah Bonus Wheel
There's no rule against having two entries for great slots bonus wheels, right?
While I stated clearly above that I feel the Mega Fortune bonus wheel is the best of the lot, the Mega Moolah one is still pretty immense.
This is more of a traditional bonus wheel, meaning there is just one layer to it. There are 4 progressive jackpots which can be won, starting with the Mini and going all the way up to the Mega.
If you're lucky enough to land the Mega jackpot, welcome to the millionaire's club! Mega Moolah is renowned for paying out ridiculous jackpots more suitable for a state or national lotto draw than a slot machine.
