Free Bonus Spins Slots

Free Bonus Slots

Free Slots with Bonus and Free Spins

Online slot gambling has advanced by an almost unbelievable amount over the last two decades, with there being all manner of new discoveries and innovations in the field. One of the main things that has ended up contributing to this is the world of slot bonus features and free spins rounds.

Let’s be honest: is there anything more exciting than free casino slots with bonus and free spins? At Thor Slots we know all about this, which is why our passionately curated and wide-ranging selection of slot games come complete with a whole load of bonus features and free spins.

Not only are slot bonus features great places to try and pick up some hefty slot jackpot wins, they are also ludicrous amounts of fun. This has always been the case mind you, although in the modern world technological improvements have meant that slot bonus features are more exhilarating than they have ever been before.

Nowadays, there are several different types of slot bonuses and free spins, which means that it is almost impossible to get bored. Seriously, due to the incredible work that developers across the industry are putting in there is almost no limit to the amount of different slot bonus and free spins on offer.

Our love of free slots with bonus and free spins is quite clear here at, so keep reading for an in-depth summary of everything these games have to offer, how to play them and some great examples.

What are Bonuses and Free Spins in Slots?

Right then, before we get into any clear examples it is well worth taking a little bit of time to give a bit of an overview when it comes to the concept of slot bonuses and free spins. The first thing to say here is that slot bonuses and free spins haven’t always been a thing, in fact the very first slots that started to appear in the late 19th century didn’t have any bonus features at all.

Although slot bonuses and free spins did start to get popular during the 20th century, it is only really with the arrival of online slots that they really became a central part of the industry. Nowadays it can be genuinely difficult to find online slot games without bonuses or free spins, they are an integral part of the modern slot gambling experience.

And here’s the thing: these days there are so many different types of slot bonus for gamblers to sink their teeth into. Indeed, slot developers like NetEnt or Big Time Gaming are also constantly striving towards bigger and better bonus features in order to attract more slot fans.  

It is an exciting time to be a slot player in 2021, just look at our selection of free slots with slot bonuses and free spins for the proof.

Free Bonus Slots

Best Slots Bonus Features in 2021

As we mentioned previously, there are several different types of slot bonuses on offer in the present day, something that greatly contributes to the general popularity of the online slot world. As a beginner it can be difficult to get your head around such a wide variety of bonus features, although it doesn’t take along to get to grips with things.

There are several different types of slot bonus features available on Thor Slots games and across the industry; here are some of the most common bonus features:

  • Free spins: Free spins bonus rounds are by far the most common slot bonus features you will encounter in 2021. In the vast majority of cases slot free spin bonus rounds are activated by a set number of scatter icons appearing on the reels, however this doesn’t always have to be the case. The concept behind free spins bonus rounds is simple – if you are lucky enough to enter one you are given a number of no strings attached free spins.
  • Pick ‘em bonus round: Pick ‘em bonus rounds were very popular in the early days of the online slot world, and also with 20th century video slots too. In these bonus rounds gamblers are given a choice between a number of cards that hide a jackpot prize behind them. Once you choose one it is uncovered, and the prize amount appears.
  • Random win bonus: It doesn’t happen all of the time of course, however in some slot games gamblers are treated to random win bonuses that can happen at any point during your reel spinning session. In most cases this is completely random, and the prize is usually a small jackpot amount or multiplier.
  • Progressive multiplier bonus: Slot win multipliers can be common during slot game base modes, but you can also have progressive multiplier slot bonuses too. In this case the win multiplier can keep on getting larger and larger, ending up on multiplier strengths that can be known to hit 10,000x.
  • Trail bonus mini-game: As online slots have got more and more technologically advanced the type of bonuses available are getting much more exciting. Trail bonus mini-games as seen in slots like Rainbow Riches Pick N Mix or Centurion are fantastic examples of this. In these bonuses players are transported to a board game inspired screen where a kind of board game mini-game takes place. The further you get to move, the more money you win.
  • Wild symbol win bonus: It isn’t quite as exciting as some of the other bonus features available nowadays, but you can never forget about the exciting world of wild symbol win bonuses. In most slots a winning combination of wild symbols will result in a sumptuous slot multiplier – it can be a great way to make some smaller gains whilst you are playing.
  • Skill mini-game slot bonus: As slots get more advanced some developers are pushing the boat out and incorporating slot bonuses that actually require a little bit of skill. These slot bonus rounds play out like rudimentary video games, and gamblers must do things like hit targets as many times as possible in a set time limit. These can often be the most fun slot bonuses, however you have to be ready for them otherwise you could miss out on some hefty jackpots.

In-game Free Spins vs Casino Free Spins Bonus

Before we go more in-depth on the concept of free slots with bonus and free spins we just wanted to clear up something that might well be a tad confusing for complete online slot beginners. It is all in relation to free spins, slot bonus prizes that can come in two main different ways.

On the one hand are online slot free spin bonuses like the ones we described in the last section. In these games the free spins are completely internal to the game itself, with no influence from the online casino site that you happen to be playing on.

On the other hand are online casino free spins promotions. Contrary to free spins slot bonuses, this type of free spin bonus is awarded by the online casino site in question, not the slot itself. There are also a number of wagering requirements that have to be satisfied if you want to withdraw your winnings.

Make sure you remember the distinction between online slot free spins and online casino free spins, otherwise you might end up disappointed. Thor Slots offers up to 500 free spins to new players, alongside various games with free spins bonus features(FULL T&CS APPLY).

Best Software Providers of Free Spins & Bonus Slots

Something that is always pretty good to know these days is who the best developers are making slot bonuses and free spins, because with this knowledge you can be sure that you’ll always choose the best games. Here at Thor Slots we have a tantalizing selection of games with fantastic slot bonuses and free spins from some of these critically acclaimed developers:

  • Big Time Gaming: Over the last few years Big Time Gaming have been most known for their incredible Megaways game mechanic, however it is important not to ignore the incredible extent of their bonus features as well. Free spins come as standard in pretty much every one of their games, however the real fun comes from the more complex bonus rounds found in games like Bonanza.
  • Yggdrasil: It should come as no surprise that Yggdrasil have been so critically acclaimed over the last decade or so considering that the developer studio was founded by an ex NetEnt CEO. The Scandinavian online slot developer powerhouse has an incredible array of free slots with bonuses and free spins. The best thing about Yggdrasil in this regard is the quality of their slot graphics. It means that their bonus rounds look devilishly exciting.
  • Microgaming: One of the oldest online slot developers around nowadays, MIcrogaming are also consistently talked of as being one of the best, something that is largely down to the consistency of their bonus rounds and free spins. Although they are not always the most inventive, if you are playing a Microgaming slot you can be pretty certain that the bonus rounds are going to be expertly designed and pack a financial punch too.

Best Free Slots with Bonus and Free Spins

What you’re probably wondering by now is what the best free slots with bonus and free spins are, something that we are incredibly well positioned to tell you here at Thor Slots. Our catalogue of games is passionately curated you see, which means our knowledge on the subjects of slot bonuses and free spins is unparalleled.

Here are some examples of free slots with bonus and free spins:

Free slot Game Bonus features Number of free spins Max win from bonus round
Bonanza Free spins, multipliers, wilds 12 + progressive free spins 17,926x 
Rainbow Riches Pick N Mix Free spins, multipliers, pick ‘em, trail bonus 30 free spins 5000x
Immortal Romance Free spins, wild multipliers 30 free spins 12,150x
Fluffy Favourites Free spins, gamble, pick’em 25 x5000 your stake

  *All of the above values are subject to change at any time.

Bonanza Free Spins

Bonanza was one of the first games put out by Big Time Gaming that incorporated the Megaways game mechanic, which means people can forget about how good the bonus rounds are here. This 96% RTP slot comes complete with random cart multiplier bonuses that drop over the side of the reels, as well as a free spins bonus and also an underground bonus round that can come complete with a progressive multiplier.

Rainbow Riches Pick N Mix Free Spins

It is genuinely no exaggeration to say that Rainbow Riches Pick N Mix could actually be the best slot with bonuses and free spins ever designed. The reason why? Barcrest have packed it full of all the bonus rounds available on previous Rainbow Riches games, with gamblers able to choose 3 out of 9 at the start of the game. Choose the right combo and the RTP of this 5 reel slot could hit 99%.

Immortal Romance Free Spins

It says a lot that Immortal Romance is still as popular as it is today considering it came out more than a decade ago. This 5 reel slot has four different bonus rounds that offer gamblers a mixture of free spins and multipliers. The most unique thing here, however, is that each bonus rounds uncovers a different bit of the vampire narrative, something that can keep gamblers hooked for hours on end.

Big Bass Bonanza Free Spins

Pragmatic Play’s Big Bass Bonanza has a highly attractive RTP of 96.71%, which places it amongst the best games in regard to RTP. Its relatively simple 5 reel and 10 pay line grid layout can deceive you into thinking its bonus features are also unexciting, however this is absolutely not the case. Our favourite bonus is the free spins round with progressive win multipliers.

Chilli Heat Free Spins

Watch out guys, because this slot is seriously spicy! The 5x3 reel grid with 25 paylines gives an RTP of 96.50%, a higher percentage than quite a few other slots available these days. Chilli Heat has a classic free spins bonus, but the more exciting thing here is the bonus jackpot that can hit 1000x your stake.

Fluffy Favourites Free Spins

Eyecon’s Fluffy Favourites is one of the most iconic slot games ever created, a classic 5 reel game with an RTP of just under 96%. This is a highly volatile slot, and one of the main reasons behind this is the extensive array of bonus rounds. There are free spins on offer, as well as a toy box pick’em style bonus and Eyecon’s distinctive gamble feature.

*Any Free Spins/Welcome Bonuses References are subject to the following: NEW PLAYERS ONLY, MIN DEPOSIT £10, £8 MAX WIN PER 10 SPINS, MAX BONUS EQUAL TO LIFETIME DEPOSITS (UP TO £250), 65X WAGERING REQUIREMENTS AND FULL T&CS APPLY.

*All values (Bet Levels, Maximum Wins, etc.) mentioned in relation to this slot game are subject to change at any time.