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  1. 🔎Free Spins: Definitely one of the most used but also the most sought after bonus feature, a free spins feature can have from 5 to unlimited free spins. 🔎Progressive Jackpot: Usually triggered randomly, the progressive jackpot is the kind of bonus features you can dream about but it super rarely shows up.
  2. This doesn't only apply to free casino slots, but to all other free casino games as well. This makes it easy to find out more about your favorites and the features available in our best games. Of course, being able to play free slots and table games is a great bonus and you can simply switch to the free slot games to discover what it's all about.

You can play any type of slot for free. This includes classic three-reel slots as well as 3D five-reel slots with immersive bonus games and other special features. The gameplay, including the odds of winning, is the exact same between the free slots and the paid slots.

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thor's picks
Asgardian Stones
Vikings Go Wild
Viking Gods
Vikings Go Berzerk
Tiki Vikings
Thunderstruck II
Thunderstruck
Sirens Serenade
featured slots
Rainbow Cash Pots
9 Pots of Gold
Starburst
Fishin Frenzy
Chilli Heat
Rainbow Riches Pick N Mix
Rainbow Riches
Adventures of Doubloon Island
Blue Wizard
Reel King Mega
Leprechaun Song
Thunderstruck II

If you love free slots, then joining the 2021 Viking Slot raid with Thor Slots and embarking on an action packed adventure into the wild and fun world of free slot games is the best choice you can make. Can you harvest the wisdom of the Norse Gods and garner the mythical power wielded behind Thor and “Mjolnir”, Thor’s famous hammer? Yes, we say.

Your long boat awaits you, so grab your sea chest and come a-board to access the most popular slots! Do you have the resilience to brave the icy seas and reap the ultimate rewards and plunder of the slot gaming world? Thor Slots is a veritable Valhalla of gaming fun with over 800 free slots in its repertoire, meaning there’s a treasure trove of wealth to be seized across a range of fun online slots titles developed only by the best. Not to mention our instant win scratch slots, which can offer you a break to socialise and have fun with your friends.

Thor Slots features all the traditional favourites as well as many new freeslots titles that are added every week in 2021. Fight your way across Bifrost, avoid the Valkyries and visit our All Games (aka Viking Slots) page to begin your quest to conquer the free online slots of the day through desktop, mobile or tablet!

Not sure how to find your favourite slots? Keep reading below for anything related to free slots or play right away with our 500 free spins welcome offer!

Play Free in Demo Mode

Free slots are just the best way to identify the slot games that you should be playing. Players don't have to make a deposit to play on a casino through this form. Instead, by identifying free slots demo, players can access the game they are interested in, without registration, download or deposit required. Thor free Slots does not offer demo slots per se, as we are not a free casino.

In addition, the United Kingdom Gambling Commission (UKGC) has banned all casino sites from offering free demo slots for fun to players. Still, we believe that these are worth a try and then you can come back to us to play slots for real money. Below, we touch upon all the aspects that demo slots uk offer insights into.

Modern vs Classic Slots

Online slot machines have come a long way since their inception back in 1890s. Classic slot machines are still apparent on many sites in one form or another, as well as fruit machines. For instance, on Thor Slots we offer punters the following classic free slots:

On the other hand, players can also access newer slots for free or to play for real money; these can be in the form of progressive jackpots slots, like Irish Luck Jackpot, or with fixed jackpots, such as Chilli Heat. Other modern free slots games here are inspired from popular culture and movies - just like the Planet of the Apes!

Free Slot Bets & Paylines

Playing demo slots can also give you a glimpse into how to play slots online. When they first begin playing, punters will have to set the number of paylines they want to bet on and then adjust their bet size accordingly. In the demo mode this is performed for free, but it can help players practice, before playing online slots for real funds.

Most free slots tend to have 20/25 paylines, on a 5x3 reel format. Classic slot machines have 3x3 paylines mostly and there are even modern free slots, which have no paylines at all - rather a Megaways format. White Rabbit, for instance, is a slot game that operates differently and players have over 100,000 different ways to win without any paylines apparent.

Free Spins & Bonus Rounds

The last great thing that demo slots offer to players for free is the opportunity to explore the bonus round apparent in select slot games. When playing slots for real money, it might take £100 or more until you trigger the lucrative bonuses rounds. In the demo mode, you can play the free bonus round of Rainbow Riches Reels of Gold without spending money instead.

How to Play Free Slot Machines

Did we fire you up already to play free slots? As we said above, Thor free Slots online casino requires a deposit of £10, but offers the chance to win real money prizes from your favourite games. To play for real money, then follow the below steps:

  1. Click on the Register button on the top of this screen.
  2. Enter your personal details, email and username.
  3. Confirm your account through the verification link.
  4. Conduct a minimum deposit of £10 to play slots real money.
  5. Claim up to 500 free spins with our welcome offer, by spinning the Mega Wheel after your first deposit.

Life is simple with Thor free online Slots. Still, if you don't want to play the best online slot games just yet, you can find one of the many International affiliate sites that are stilled allowed to offer free slots in their demo version. After you play around a bit, come back here to spin the reels of slot games and win real money. Below, we briefly explain the process involved after you deposit on our site and set out to play slots:

  • After the online slots game loading screens opens, you will be met with the base game. First, you will need to set your bet size (sometimes it is displayed with coins) and select the number of paylines that you want to bet on. 243 ways to win, 1024 ways to win and 111,000+ ways to win slots don't have paylines, so you will just need to adjust your bet levels.
  • Now, you are ready to hit the Play button. After a short animation (3 seconds), the symbols will be locked on the reels. Most slots play from left to right, when at least 3 or more identical symbols appear on the same payline. Megaways slots pay if 2 similar symbols are on adjacent reels. Some games, like Book of Dead, pay even when 2 high value symbols appear on the reels.
  • This is the basic process on how to play slots; however, if wilds or scatters are apparent, the normal online slots rules change - as these special symbols perform different functions.

Remember to have a look on the Paytable of each slots games before you start spinning its reels to see how the special symbols and the bonus round affect the gameplay described above. Autoplay is also available on some free slots, so you can play without even hitting a button!

Best Online Casino Software Providers

And

Real money slots and free slots are a by-product of the hard work set by the worlds leading software providers. Some operate since the days of land based casino halls, while others are newer. Free slots sites tend to only offer slots games from a single provider. In contrast, Thor Slots closely works together with the biggest names of the industry, offering you the best slot games in the world (sometimes for free no download).

Eyecon Slots

This company has been developing games for over 30 years. They tend to build around themes that we are all familiar with since our childhoods. Most of their slots games have an RTP of 95%, free slots games features, 5x3 paylines and a gamble feature. Their best slots that we offer on Thor Slots in desktop and mobile include:

Bonus
  • Fluffy Favourites Fairground (comes with 10 - 500 free spins with our welcome bonus)
  • Fluffy Too - free games bonus
  • Enchanted Prince - free spins round
  • Shamans Dream - gamble feature and jackpot version
  • Sugar Train - highest RTP slots from Eyecon

NetEnt & Microgaming Slots Games

Another top rated name in the gaming industry, NetEnt has been collaborating with Thor Slots. They produce some of the highest RTP slots games with unique bonus rounds and free spins games. They have also established one of the most formidable progressive jackpots network and they have been recently acquired by Microgaming - another gaming giant. Our favourite titles from their teams include:

  • Aloha - best cluster pays slots
  • Mermaids Millions - beautiful theme and design
  • Mad Mad Monkey - players' favourite

Yggdrasil Slots

Our third favourite gaming developer, and the one that produces themed slots exclusively for us is Yggdrasil. It is not as big a company, as the ones we touched upon above - but they establish the best free slots with a Viking theme in the industry. Below, you can see some of the best Yggdrasil slot games on Thor free online Slots:

  • Vikings go Berzerk - comes with our formidable 500 free spins welcome offer
  • Vikings go Wild - top bonus feature 2021
  • Viking Gods - one of the best branded slots on this casino
  • Viking Fire - title of the year 2017
  • Vikings - from the popular TV series

Fascinating stuff, right? Join our online casino and play all these freeslots or play for real money in 2021. Other slots games that you can find on our site come from Big Time Gaming, Blueprint Gaming, Pragmatic Play, Push Gaming and Barcrest.

Free Slots vs Real Money Slots

Free slots are exciting, we never denied that - but real money are actually giving slots their true identity right? We have been debating this very question when we were establishing this site - offer free to play slots or real money slots to our players?

Surely, no site our online casino will please everyone, but we tried to find a middle way; offer real money slots so that players feel the rush and excitement that comes along with gambling for cash - but give free spins to new players. Loyal slot machines punters still receive free slots cash, free spins, loyalty rewards and VIP bonuses, but a real money deposit is required on Thor Slots to play online slots for the first time! To come to this solution and design our online casino accordingly, we took into account the pros of free slots and the cons - in relation to their real money counterparts.

Pros & Cons of Freeslots

+ No cost, offering fun and play time no strings attached.

+ Accessible from many online casinos.

+ No download required to play slots free

- Small variety of slots games

- No thrill or hype that comes with real money rewards

- New slots rarely come for free

Free slots and bonus video poker

Pros & Cons of Real Money Slots

+ Can reward thousands or even millions in prizes

+ Huge range of slots games with exciting bonus rounds

+ Can give access to free slots rewards, like match deposit bonus and free spins

- Require a minimum deposit, usually of £10

- One has to provide a lot of personal details to online casinos, especially to withdraw funds

- Can result to addictive or compulsive gaming

Playing Free Slots at Online Casinos

No matter if you are down to play free slots or whether you are 100% positive that real money online slots are the right choice for you, there are a few things that you need to always check before you register to play online. The below aspects should be explored in detail before you deposit or sign up to play online slot machines.

License: The first thing that you need to check when preparing to play free online slots for free at a casino, is checking whether there is a valid gaming license. These are usually provided by the Gambling Commission and the Malta Gaming Authority for the uk online casinos. Thor Slots is a licensed and regulated casino, so we tick that box!

Deposit Methods: An online casino site should offer punters a variety of deposit methods to be able to access deposit bonus and free spins to play online slot games. Here, you can deposit £10 minimum, no fees with Visa Cards, MasterCard, PaySafeCard, PayPal, Skrill, NETELLER and Pay by Mobile Slots. The latter allows you to credit your phone bill and play free slots online.

Welcome Bonus: New players should always pay extra attention to this. Is the welcome bonus applicable to the slots games you want to play? Maybe free spins for Book of Dead or Starburst? A deposit bonus of £500 to play casino games? Research first, deposit later. Thor has 500 free spins welcome for online slot machines, which is truly a perfect start for your gaming experience.

Existing & Loyal Customers Promotions: You won't be a new player for long, right? This is why you should always explore the online casinos promotions for existing players too before committing to a particular casino. Here, we provide cashback offers, daily free spins, monthly free spins, VIP ladders and rewards, deposit bonus offers and tournaments that reward those who spin the reels to outshine the competition. Check our all the Thor Slots promotions here.

Games Catalogue: Free online slots are the only think you care about? Well, that's fine with us as we offer over 800 different types including a variety of themed slots (Egyptian, Pop Culture, Animal, and so on), branded online slots, classic slot machine games, fruit slot machines, jackpot slot games, progressive jackpot slots and instant slots. Nonetheless, we also offer casino games (poker, blackjack, roulette, craps, Dragon Tiger, Sic Bo, baccarat) in video and live version, scratch cards and a few arcade slots.

RTP & RNG (Fairness): Only licensed and regulated casinos by the Gambling Commission like us, ensure fairness and transparency when it comes to free online slots. All our slots and casino game titles come with a dedicated return to player rate (RTP). This highlights the edge that we have over punters across all our games. A random number generator is also apparent, as in all casino sites regulated in Great Britain, in our casino games - ensuring that each round is unique and indifferent to the one that came before it.

Customer Service: Lastly, always check a casino in relation to its support services. Thor free Slots has social media accounts that can help you identify the answers to all your questions, a support email for technical issues and a 24/7 live chat button for any enquiries in English. Why settle for less than the best gaming experience with us?

The Best Free UK Slot Games for 2021

Setting aside just a few amongst all the best free slot titles available here is not easy, we have to admit. We have many games available to play, which tend to have different unique aspects - but here we are compiling a list with the top 10 free online slots for you. We take into account their RTP, volatility, bet levels, bonus rounds, hit rate, theme and graphics when ranking them - while the table summarizes their main aspects.

Game Title

Developer

RTP

Free Bonus Features

Eye of Horus

Blueprint Gaming

96.31%

Free Spins, Fixed Jackpot

Starburst

Net Entertainment

96.09%

Re-spins, Sticky Wilds, Pay both Ways

Fishin Frenzy

Reel Time Gaming

96.12%

Scatters, Wilds, Fixed Jackpot

Fluffy Favourites

Eyecon

95.388%

Free Games, Gamble, Fixed Jackpot, Pick Prize

Rainbow Riches Megaways

Barcrest

95.9%

Free Spins, Cascading Wins, Buy Feature, Bonus Bank Bonus

Slingo

Slingo Originals

95%

Joker, Super-Joker & Blocks

Pirate Gold

Pragmatic Play

96.5%

Free Spins, Wilds, Scatters

Mega Moolah

Microgaming

88.12%

4x Progressive Jackpots, Free Spins

Avalon

Microgaming

96.01%

Scatters, Wilds, Free Spins, Fixed Jackpot

Blood Suckers 2

Net Entertainment

96.94%

Wilds, Scatters, Free Spins, 4x Bonus Features

  • Eye of Horus

Created with Ancient Egypt in mind, Eye of Horus is an iconic slot game by Blueprint Gaming. With an RTP of 96.31%, max win of £250,000 and free bonus features - we consider it amongst our best free slots.

  • Starburst

One of the most played free slots online of the 21st century, Starburst moves the action to outer space. With an RTP of 96.09%, a hit frequency of 22.65% and a max stake of 500x the players bet - there is no wonder why it is ranked amongst the top game titles.

  • Fishin’ Frenzy

A Reel Time Gaming slot, Fishin Frenzy carries a max win of £4,000 per spin and it is considered by many an unrivalled freeslots title. Its RTP stands at 96.12% and it comes with a low-medium volatility levels.

  • Fluffy Favourites

An Eyecon all-time favourite, which has also sparked a whole saga of over 10 best free slots games, Fluffy Favourites surely brings up memories. It's RTP is 95.388%, it has multiple bonus features and a high variance.

  • Rainbow Riches Megaways

Rainbow Riches is a top-notch game indeed, but Barcrest didn't stop there. The Rainbow Riches Megaways has all the cool bonus features of the original Rainbow Riches with improved graphics and gameplay, as well as over 100,000 different winning ways.

  • Slingo

Although the Slingo Originals company has produced a whole lot more games, the classic Slingo remains the most popular amongst our players. It's 95% RTP is very high for an instant game, why its bonus features are thrilling. Play free Slingo on Thor Slots or try out its 2021 follow ups, Slingo Rainbow Riches, Slingo Riches, Slingo Fluffy Favourites, or Slingo Extreme.

Free Slots And Bingo Games

  • Pirate Gold

Celebrated by players as one of the best new slots, Pirate Gold has a high volatility and a 96.5% RTP. Wilds and scatters are apparent which assist players to enter one of the best free bonus rounds.

  • Mega Moolah

The iconic lion of Mega Moolah slot is still Microgaming's mascot. The jackpot beast has rewarded millions to players since its inception and it might pay out the next £10 millions on Thor Slots. 4 progressive jackpots, free spins and high paying animal-related symbols position this slot amongst the best.

  • Avalon

A less famous Microgaming slot game, Avalon is amongst the best medieval slot games in the world. Bets start at £0.10 per spin, up to £200 in this 5 reels and 20 paylines game. Free spins, wilds and scatters are the features that can give you the max prize here.

Free Slots And BonusFree Slots And Bonus
  • Blood Suckers 2

The sequel to the highest RTP free slots on Thor Slots, Blood Suckers, is also live in 2021. Blood Suckers 2 brags a return to player rate of 96.94% and its low volatility makes the gameplay pretty smooth and easy. Hidden treasures, free spins, shooting features and more surprises await players here.

How to Win on Slot Machines?

Casino slots and free slots appear as easy to play and win, but this is far from the true as any experienced gambler will tell you. In the past people employed cheats to win at slots, but with newer technologies all of these have disappeared, and casino players are trying to employ strategies. Things to look out for when picking a slot and factors that you should consider based on your bankroll include:

  1. Return to Player - the RTP defines the house edge when it comes to this specific online slot games. Always pick slot games with offer 96% RTP, while some of the highest RTP slots on our site are Cops and Robbers and Big Bad Wolf!
  2. Random Number Generator - make sure that RNG is apparent in your free slots choice, which will re-assure you that each spin offers equal chances of winning to the previous one. All Thor Slots have this feature.
  3. Jackpots - Daily, Major, Progressive and Local jackpot slots alike have a high volatility rate (7+ / 10), which means that they will pay less often, but much higher when they do. Consider this in regards to your bankroll and expectations. Jackpot slots with a decent RTP include Stampede Jackpot and Beehive Bedlam.
  4. Paylines - Most slots uk tend to have 25 paylines or more, which make the gaming experience more fun and exciting. Look out for those before you start betting and consider alternatives like Megaways and Megaclusters slots. Our favourite are Bonanza and Fishin Frenzy Megaways.
  5. Fruit Machines - Classic fruit machine slots tend to offer a 3x3 reels payline/reel structure, which means that there are lower winning chances - but this also means higher rewards. Some even include jackpots, like Diamond Strike and Jokers Jewels.
  6. Symbols - Free slots in 2021 tend to offer many more symbols than classic slots, which also have better graphics than classic slots. Identify the special symbols (wilds & scatters), the low paying symbols and the jackpot/free spins symbols before you start betting.
  7. Max Bet - Your payout is based on the amount you bet, so the more you bet, the greater your wins will be. Find jackpot slot machine games that you play with less than max bet and win the highest rewards. Titles like this include Reel King Mega and Fishin Frenzy Jackpot King.

All of the above can offer you some background and holistic knowledge on free online slots, which are considered by people who don't gamble easy to play and simplistic. If you want more info on any of the above topics you can access our blog to learn more on each particular topic and on more specific issues regarding casino best free slots, such as bonus rounds, free spins, loose slots and winning streaks!

Playing Mobile Slots Online or with App

Did we mention that Thor Slots is often also called a phone casino? There is a good reason for that. Almost all of our free slot machines and casino games are optimised for mobile browsers; how to play mobile slots?

Free Slots And Bonus Slots

  1. Open your mobile browser and visit our casino site (we support Chrome, Mozilla, Safari, Internet Explorer).
  2. Click on the sign in button if you already got an account or sign up on the site following the easy process required.
  3. Tap on the online slot game that you want to play. All the best free slot game titles are also available on mobile.

Then, the game will launch in an instant and you can play. Bored to open Thor Slots on your mobile browser? Download for free the Thor free Slots mobile app from the Google Play or App Store and play iPhone slots or Android casino games anywhere, anytime. The best optimised games for mobile devices and tablets include:

  • Mobile Slot machines (even better than on a desktop computer or laptop)
  • Mobile Roulette
  • Mobile Blackjack
  • Video Poker
  • Mobile Scratch Games

Slots Bonuses - 500 Free Spins Welcome Bonus

Thor is renowned for his fierce and stony demeanour but when it comes to slots, he’s generous with his wealth. Sign up and deposit just £10 today to receive up to 500 free spins on Yggdrasil’s Viking Go Bezerk and other amazing free slots (Fluffy Favourites 10 free spins, Rainbow Riches 50 free spins and Starburst 100 free spins) and accumulate your own Norse treasure.

Once you’ve defeated Loki and his plethora of inferior free slot websites and signed up to Thor, you’ll immediately be entitled to a multitude of promotions and free bonuses that will continually log into your account as you play and defeat your enemies. Besides weekly cashback and Happy hour bonuses you can also become part of our lost of most loyal customers, meaning you’ll be visiting Asgard and rubbing shoulders with Norse Gods and established members of the Viking brother and sisterhood.

Keep an eye out for our seasonal offers throughout the year and you could benefit from any of the following: top deposit bonus promotions, new welcome offers, cashback for new players, daily cashback bonuses, loyalty scheme, free spins, free cash and happy hours offers! Play our free online slots today and access a world of unlimited gaming and rewards.

No Deposit Slots, No Download 2021

Besides demo slots, you might be able to actually get no deposit bonuses too in the UK. These promotions allow new players to claim a free money bonus value that can be wagered on slots online. However, these tend to carry wagering requirements. Common types of no deposit slot offers in the uk:

  • $5 no deposit bonus, 10 free spins on Book of Dead
  • $10 free bonus money, 80x wagering requirements
  • $20 no deposit slots bonus, for Starburst

Thor Slots offers no deposit bonus in 2021, but existing players might receive just rewards based on their gaming experience.

Online Casino Bonus No Deposit

These types of bonus offers are usually applicable just to casino games. No deposit roulette, free blackjack and free poker might be able to achieve with a no deposit casino bonus online - even rewarding some real cash after meeting the wagering terms.

Thor casino offers exclusive bonuses on these games, but only to loyal customers, who have first made a deposit of real money.

Free Spins No Deposit Required

Probably the most searched offer on the internet, free spins no deposit are available on a few casinos - followed by very strict wagering requirements. Winnings are capped, bets per spin is low and the qualifying games tend to be very limited. Most popular free no deposit spins in 2021:

  • 15 free spins no deposit, x30 wagering requirements. Value per spin £0.05
  • 20 free spins without deposit, x50 wagering requirements valid for one day
  • 50 free no deposit spins for Fluffy Favourites, max winnings £20. Phone confirmation required

On this casino you can only receive free daily spins, free monthly spins and the welcome bonus of up to 500 free spins.

Terms & Conditions Apply on Thor Slots

If you deposit real money to play slots online, then you don't have to worry too much about our Terms & Conditions. Still Ts & Cs apply if you claim our welcome offer; all your winnings will need to be wagered x65 times and there is a minimum deposit limit of £10.

Max wins on every 10 spins is £8 and the maximum winnings from the 500 free spins offer is £250. Still, our loyalty bonuses, monthly free spins and other promotions come with no wagering and no deposit required. So, stick with us and the fun will keep coming your way.

Safe & Secure Deposits & Withdrawals

Thor and the Nordic race may be an ancient example of our history, but their payment and safety procedures are nothing but progressive. Take a look at the bottom of your screen for a full list of our payment methods but feel safe in the knowledge that Visa, Maestro, Mastercard, PayPal, and Pay By Mobile casino are all included; so, if you want to register and play free slots, there is nothing to worry about - Thor Slots casino has you covered.

If you never heard about pay by mobile before, see here an example of how to deposit for Rainbow Riches.

Safety & Security on this Casino

Although Thor’s title as the Norse God of Thunder suggests otherwise, your safety while depositing and spinning will be nothing but clear skies and a hassle-free journey. Thor Slots works closely with the regulating bodies to ensure all our player’s safety is adhered to and we advise that all players set deposit limits in line with their budget as well as taking a look at our responsible gambling guidelines before they embark on their slot journey.

Always Play Responsibly on Thor Slots

So what are you waiting for? Between now and Ragnarök seize the day, wield the power of Thor, and carve your name into the rune stones of Nordic legend. However, never forget that gambling problems are quite easy to develop - so stop when the fun stops! Our demo slots might be a good option if you feel that you are surpassing your limits. Join and Play Today!

Did you know this about Free Slots? (FAQs)

People are getting fired up with slots, but there are some grey areas that we attempt to shed some light on below.

Are your recommended games legal in the UK?

All the online slot and casino games available on Thor Slots are regulated by eCogra and licensed by the UKGC. As we are a licensed site, we adhere to the strictest guidelines to ensure players' safety and security when playing free or real money slots online.

Are free online slots rigged?

Many people think that casino sites offer free slots in demo version to make sure that players will get excited and deposit real money. Although we don't offer freeslots without deposit, we can ensure that all legal sites in the UK that provide demo slot games by developers offer an identical version with the real money game. This is because developers like Big Time Gaming, Pragmatic Play and Blueprint Gaming who offer demo slots are also suspect to strict monitoring and regulations.

Where Can I Play Free Demo Slots?

Free slots can be accessed and played through a real money site in their demo version. Some sites online offer no deposit offers, but they are too low to give you a real grasp of the game. Free spins bonuses are the best way to pay a small amount and play free slots for a long time.

Which Slots Payout the Most?

There is no 100% guarantee that a slot machine will pay high. Still, variance (also known as volatility) is the factor that determines how online slot machines operate, as well as the RTP. The latter illustrates how much money an online slot machine will pay out across 1,000,000 spins based on the money wagered on it. Volatility illustrates the size of the wins that are going to be paid out. Low volatility slots payout small wins but more regularly and high variance slots the opposite. The best slots payouts on Thor Slots have been observed on the following slot machine games:

Are free slots playable on mobile?

If you are playing free slot games on Thor Slots, yes, they are. This free casino offers all the games, including new slots, through the dedicated mobile app and in their mobile optimised version. Supported devices include desktop computers, tablets, mobile phones (iOS, Android, and Blackberry) - but mobile slots tend to perform best on tablets due to screen size.

Can I play Slots Online?

Many people think that slot machine games are exclusive to land based casinos. Brand new casino sites like Thor Slots, however, offer an equal if no better gaming experience. Our slots online catalogue competes with the best Vegas casinos, easily.

Can I play free slots on Facebook?

Facebook slots are one of the latest trends in the gaming industry. Many brands, as well as Facebook itself, have launched online slot machines games which are playable for free. Players can play free slots online and unlock new slots as they play, just like Candy Crush. Premium features are also available but require money deposits. The negative aspect of Facebook Slots is that they do not reward any real money.

How do I download slots?

Normally, if you play on free online slots on sites like ours, you would not have to download a game to play. However, some free casino sites require punters to download slots and play for free on their phone just like any mobile app. The negative aspect of these is that there no real money rewards, just paid features to enjoy slots that are not even equal to the ones that reward real prizes. We find slot downloads outdated and unnecessary, especially when you have free slot sites like Thor in 2021.

Can you play real slots online and win real money?

Online slots are much better than brick and mortar slots in terms of graphics, payouts and variety. These are more real than any classic slot and can pay out very high amounts of real money, yes.

Any references to bonuses and free spins are subject to the following terms: New players only, min deposit £10, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250), 65X wagering requirements and full T&Cs apply. Please see our promotions page for more information.

Rights Reserved.

Here you can see and play all our free slot games with bonus features, no download or no money required. Basically, any slot games with bonus features, meaning any types of bonus symbols or feature is listed on this page.

This selection of our free games online offer a wide range of different bonus games. Each makes a real difference to the games. From the simple pick an item type games commonly found in Las Vegas casinos too much more sophisticated and entertaining games. Some of the bonus games are mini-games in their own right! Some of our online slots even have skill-based bonus rounds where the player may have to use speed or accuracy to win more credits.

Free Slot Games With Bonus Features For Mobiles & Desktops

Desktop Only Slots

Our free slot games with bonus features are both Flash and HTML5 powered. So can be played on both desktop and mobile devices. All of our slots online are free to play and you can play instantly in your web browser with no deposit and no download required. Although none of our slots are real money slots, you can win real money playing our slot machines. Data charges may apply if playing on your mobile over mobile data. Therefore, it is best to make sure you are playing on a free wifi connection.

In our games, you will find a great selection of bonus features. Some of them are completely unique, to our knowledge they have never been used in an online casinos slot game. Others are the same as the features you would find in popular slots games in a casino.

Free Spins Bonus

This bonus feature is in many free casinos slots games. Both in our own games and in the slots you will find in casinos. It is pretty much what it says it is. You get a number of free spins awarded to you.
Normally to active free spins mode you have to get a specified symbol to land on the reels a certain number of times. The number of times the symbol displays on the screen at the same time normally dictates how many free spins you're awarded. For example in our Football Fever Slot, 3 stopwatch symbols or more wins you free spins. 3 wins you 3 free spins, 4 wins you 5 free spins and 5 wins you 8 free spins.
When the free spins mode is activated there is normally nothing for the player to do. They just sit back and watch as the free spins are automatically played for them.
In some free spins modes, wins can be multiplied and sometimes more free spins can be won inside the free spins mode. This is known as retriggering free spins. There are many slight variations of the free spins modes.

Pick An Item Bonus

Pick an item bonus rounds are also pretty common in our free slot games with bonus features. They are also pretty common in slots machines in casinos. You're shown a selection of images to pick from.
Depending on the game, you get to pick one or more of the items. Each item has a prize hidden in or behind them, clicking the item makes the prize credit amount to appear.
Each time you activate the pick an item round. The prizes behind each item change so they are not the same each time. Depending on the game, the items may stay in the same position or switch locations.
Many of our games have a pick an item round. Including Monopoly Slots, Girls Best Friend Slot, Cleopatra Slots, and Pirates Slots to name just a few.

Gamble 50/50 Bonus

Another common type of bonus. The gamble round or 50/50 feature has a few variations. You can also find this bonus round in our free slot games with bonus features. The aim is to gamble the credits won by the spin that activated the bonus game. You can either keep your winnings or gamble them all for a 50/50 chance of doubling them.
In our 50/50 gamble games. There is a card face down, you have to select if it's a black or red card. You can also select which suite you think the card is. If you select correctly you double your winnings and get the chance to guess again on another card. If you guess incorrectly you lose all your winnings and return to the reels.
We have several games that feature this type of bonus feature that gets activated after every winning spin. Some of the games that have this are Flash Cash, Halloween Party, and Summer Spins

Shooting Bonus Round

Although this type of bonus round is pretty common on our site. They are not so common if at all on slots games in casinos.
We have several different types of shooting bonus games. Each requiring slightly different skill levels. Some are shooting type of games where you have to throw or shoot something at an object. Others are where you just have to click on moving items.
One of the highest skill level shooting bonus games is our Archery game in Summer Games Slot. You have to aim, judge the power of the shot. Taking into account the wind speed to try and hit the center of the target. Like reel Archery, the closer to the target you get the higher your winning credits.
Our snowball fight bonus game is unique to our Snowball slot. Once activated you get to take part in a snowball fight. You're represented by a little person with a red top, your opponents wear blue tops. You move your little person around on the screen and click on them to prepare to throw a snowball. When you let go you throw a snowball at the opponent. There are many rounds in the bonus game, each round getting progressively harder.

Racing Bonus

A race game is where you bet on the winner of a race. Like horse racing or greyhound racing. This is another unique feature that is common on our site. However, not so common in slots games at casinos. At casinos, these types of games tend to be betting games in their own right. They don't tend to be part of a slot as a bonus round.
In our Summer Games Slot, you bet on a swimmer by selecting which country you think will win the race. The position your selected swimmer finishes in determines the amount you win.
In Santa's Super Slots you bet on which toy you think will win the race. You get to place different bet amounts on different toys. When the race ends the positions that the toys come and the amount that you have bet determines the amount you win.

Fireworks Bonus

This is another game that is unique to Free Slots 4U. Our fireworks round features in Fireworks slot and New Year Party slot.
We have two versions of the Fireworks game. One version is based on the river Thames in London. While the other lets, you pick from London, New York, Paris, and Sydney. Each location features iconic landmarks as the backdrop to your fireworks display.
In the fireworks round, you get to build a fireworks display. By buying fireworks with credits from a fireworks fund. You place each firework on a timeline at the bottom of the game. When you're happy with the positioning of the rockets, simply hit Start Show. Then sit back and watch your very own fireworks display. The more fans you please with your fireworks display, the more credits you win.

Photograph the Reels

The Photograph the Reels or Shoot the Reels bonus game is pretty unique and fun type of bonus game. In this bonus game, the reels will spin up and down randomly both fast and slow. The aim is to click on a specific image as it whizzes past on the reels. The more you manage to click the more points you earn in the bonus round. This game is very much so a skill based game. It relies heavily on a keen eye and quick reaction time.
As you can see from the screenshot to the left you can play this game on our Slots of Vegas Slot. However, it is also featured in our Crazy Vegas slot. Even though all our games that have this type of bonus game each feature the word 'Vegas' in their names. This is just a coincidence. Although, we have not been to Vegas to check we are pretty sure the chances of finding this type of bonus game in Vegas is pretty slim.

Stop Flashing Light

This bonus game is similar to ones found in fruit machines. In the form of a Cash Ladder and Bonus Trail or Bonus Board. The stop the flashing light type bonus game is pretty much what it sounds like. There is a set of images that are darkened out and flash bright one at a time randomly. As they are flashing you have to click on a stop button to stop them on the correct image. Some bonus games such as the one pictured to the left show you which image you need to stop the light on. In other games, each position has a different bonus amount. Where the image you stop the light on dictates the bonus amount you win.

Our Slots of Vegas Slot slot have the type of bonus game shown in the image. Our fruit machines games have the type where the image you stop on shows the bonus you win.

Bingo Bonus

Bingo is very popular, although we don't know of any slots games at casinos that have a bingo round. So we made one! Casinos do have bingo games but they are not part of a free slot machine.
The Bingo Bonus is what it says it is. You get to play Bingo in a bonus round. This round can be found in our Bingo Slot. When playing the speed bingo round you can manually daub numbers on your bingo card, or you can select auto-daub. Look out for three bingo bonus symbols on the reels as this activates the feature in the game.
Tip: Selecting manual mode will have higher prize amounts, plus, we think, its more fun!

Extra Rewards Slots For Free

Video Poker Bonus

There are many video poker games in casinos. But again to our knowledge, none feature as a bonus round in a slots game.
Two of our slots, Casino Slots Slot and also Video Poker Slot feature video poker feature.
Video poker slot includes Deuces Wild Multi-Hand and Jacks or Better.
Casino Slots features Aces Faces video poker as one of its many bonus features. All the poker games are games from our Free Video Poker 4U sister site.

Roulette Bonus

Like video poker, roulette is another game that tends to be a game in its own right. So in true FreeSlots4U style, we have made it a bonus game in our slots machines.
Our Roulette Slot and Casino Slots Slot. Roulette slot features three versions of Roulette, French Roulette, American Roulette, and European Roulette. Casino Slots Slot features European Roulette.
All the Roulette games are from our sister site Roulette 4U where you can play more Roulette games.

Blackjack Bonus

Blackjack Bonus rounds can be found in our Blackjack Slot and also our Casino Slots Slot.
The Blackjack games are from our sites site Free Blackjack 4U. where you can play more Blackjack games. Spanish Blackjack is featured in casino slots slot.
Our Blackjack Slots game features Hi Streak Blackjack, Blackjack Switch, and European Blackjack.

120 Free Spins Real Cash

Spin The Wheel Bonus

Free Slots Bonus No Deposit

This game is very much like the Wheel of Fortune. Simply spin the wheel and watch to see where it lands to show what you've won. Our Royal Vegas Slot features this type of game.
We are continually coming up with new bonus game ideas. If you have an idea for a bonus game that you would like us to create in one of our games. Simply let us know (using our Contact Us page) and we will see what we can do!