Free Casino Slot Games With Bonus Rounds

Free casino slot games always come with bonus rounds, but as you can imagine, some are better than others. Today, we have prepared a list of  five games that have the best bonus rounds to offer.

Best Casinos For Slot Games

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Most of these bonuses will come in the form of free spins, but there are a few that have their own unique levels. Before we start, remember that to play slot games in the United Kingdom as of 2019, you always need to verify your age and identity.

Free Casino Slot Games With Bonus Rounds – Rainbow Riches

Rainbow Riches Slot
Rainbow Riches Slot

Rainbow Riches is all about the Irish an their Leprechauns. The game itself is a pretty standard slot which will offer you low and high-paying symbols. Developed by Scientific Game, Rainbow Riches has an outstanding bonus game that can reward you up to 25,000 coins by successfully completing the bonus game. Speaking of bonus rounds, there are several things that you can expect from this game in the very least:

  • Road to Riches
  • Wishing Well
  • Pots of Gold 

Each of these three bonus levels is worth every penny that you spend upfront in pursuit of the cool hidden features. Plus, there are 20 paylines, which makes the game a well-balanced product between big profits and immediate return.

Two of the symbols that you would want to see often are the Wild, which is incidentally the highest paying symbol by itself and the Rainbow Riches symbol, which can also bring you a profit of 12.50 coins, if you manage to get five of it in  winning combination. 

Book of Ra

book of ra slot
Book of Ra Slot

Depending on how you feel about pyramids, Novomatic’s Book of Ra can definitely strike home with you. The game is superb part of a bigger series of games developed by the studio in a bid to create the most authentic gaming experience to date. 

There are quite a few versions of the game out there, but to make sure you are playing the right one, just stick with Novomatic’s games. So what is Book of Ra? It’s a no-download free casino slot game that comes with a decent 10-free spins bonus level. The payouts are fairly frequent and you can squeeze quite a bit of profit playing this game. 

In terms of betting limits, you can stake between 1 and 900 coins, which will definitely give you an idea of how quickly money can be won, and won big time. Apart from the special bonus round, you will also enjoy quite the generous payouts during regular play. 

The wilds will help you boost your payouts as they show up on the reels fairly frequently and give you a chance to see your bankroll grow at a decent pace.

40 Super Hot

40 super hot slot
40 Super Hot Slot

Now, if you want a game with “casino” written all over it, you will definitely want to get yourself playing 40 Super Hot. The game comes with 40 fixed paylines, which is quite generous to begin with. EGT may be too focused on classic-looking slot games, but you got to admit that 40 Super Hot looks every bit as modern as all the other leading titles.

Plus, the bonus levels are exquisite and awesome. There are a lot of fruit symbols and you are probably thinking that they would end up paying peanuts, but you can actually get 8,000 coins out of the grapes and 4,000 coins out of the melons. The Scattered Star bonus feature can end up awarding you up to 400,000 coins, should you line 5 Star Symbols on the reels, which is pretty awesome when you come to thin of it. 

So far as the size of the stake goes, you don’t really have to worry about paying too much at all. You can place as little as 0.01 or 0.1 based on your budget, specific goals and expectations from the game. For our part, we can promise you that 40 Super Hot is definitely one of the top titles to ply when it comes to great bonus rounds in free casino slot games!


Starburst is an excellent game developed by NetEnt with the sole purpose of sending ripples across the iGaming pond. With the game debuting in 2012, Starburst has persisted throughout the years, unflinching in the face of competitors.

Thanks to the game’s exceptional bonus level, which features 10 free spins, expanding wilds and a feature that can re-trigger your spins, you will find yourself playing a highly-rewarding title which will make all of your investment of time and money pay off generously. 

starburst slot
Starburst Slot

Starburst is indeed a game that continues to win the praises of gamers, as the bonus level here can potentially restart itself, leading to even bigger and better profits. The game itself has only 10 paying combinations, but this shouldn’t dispirit you in the slightest, because you can actually do quite a bit to squeeze out great rewards as we have pointed out. 

Game of Thrones

Game of Thrones is a great slot developed by Microgaming and inspired by both the namesake TV series and the books by George R.R. Martin. Creating the world of GoT in a video game is definitely a daunting task, but Microgaming haven’t flinched in the face of a real challenge. 

As a result, you get a game that offers you to pledge your allegiance to the four houses of the GoT world, with each alliance bringing you unexpected rewards that will ultimately help you expand your own clout, and as a result bankroll. 

game of thrones slot
Game of Thrones Slot

On the financial side, Game of Thrones is an awesome game that will let you control your bankroll as you see fit. You can play with as little as £0.30 per spin or you can push that number to £3 per individual spin.

Plus, there are 15 and 243 ways to win. Yes, Game of Thrones comes in two versions. For the 243-way-version, you can actually stake as much as £6 per individual spin, which is great. 

So far as free online slots games with bonuses go, you will get tons of free spins. Depending on your affiliation with the in-game houses, you will end up with a different bonus every time. With this in mind, Game of Thrones Slot is definitely worth exploring.

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