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Buy The Bonus Slots

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A collection of slot games where you can pay to go straight to the bonus round and/or gamble the bonus round once you have it to try and get extra free spins.

  • Play Rainbow Riches Megaways at Cash Arcade
    Deposit £10+ To Open Your Loot Chest - Top Prize 500 Slot Spins

    Rainbow Riches Megaways sees the Megaways treatment given to arguably the most popular slot of all time (as far as UK players players are concerned, anyway).  The base game is very similar to other Megaways gems such as Bonanza – it has the familar horizontal reel at the top and cascading wins. The Super Gem symbol, which transforms all gems on the reels into the same gem, is also nothing new.  The bonus round is also typical of Megaways slots rather than of other Rainbow Riches games – it is free spins with an increasing multiplier.

    Where it gets interesting is in theways in which the bonus round can be triggered apart from by the usual 4 bonus symbols.  The Buy Pass triggers it instantly for 100x stake and if bought, the bonus round can be gambled using the Take A Chance feature, which awards a better bonus round or nothing.  Players can also save up for the bonus round by using the Bank feature which allows some or all winnings to be held to reduce the price of the Buy Pass (if you leave the game without buying it the winnings return to your wallet)

    Rainbow Riches Megaways has RTP of 96% and this goes up to 96.661% – 96.863% if the Buy Pass is used.  The “Take A Chance” gamble does not have a house edge.  The game can be played from 20p a spin.

    * New players only, min deposit £10, £8 max win per 10 spins, max bonus conversion £250, 65x wagering requirements and full T&Cs apply.

  • Play 300 Shields Extreme at Fun Casino
    11 No Deposit Bonus Spins, 50% Slot Bonus & 100 Bonus Spins

    300 Shields Extreme by NextGen is the sequel to the notoriously high variance slot 300 Shields (inspired by the film “300” which gave birth to the catchphrase “This is Sparta!”).  It has 25 paylines and is played on a classic 5×3 array.  The main differences from the original game are new HD graphics and the introduction of the Buy Pass which enables players to go straight to the free spins bonus round for 65x stake.

    It’s the kind of bonus round that has the potential to be absolutely insane, but also often disappoints.   It starts with 5 free spins with warrior (wild) wins doubled and can escalate through 4 levels (adding more free spins as it does) depending on the number of shield symbols collected while the free spins are playing.  The 4th level has an eye-popping 300x multiplier on the warrior wins – you can’t get much more high variance than that!

    300 Shields Extreme has RTP of 95.299% (95.658% with Buy Pass active) and can be played from 25p a spin.


    * 18+ new players only, max bet £5. 11 Fun Spins for registration (max withdrawal is £100). 50% up to £499 bonus + 100 Funs Spins on 1st deposit. 50% up to £499 bonus on 2nd deposit. No max cashout on deposit offers..

  • Play Return of Kong Megaways at Gala Casino
    Deposit & Play £20, Get £40 Slot Bonus & 20 Bonus Spins

    Return of Kong Megaways by Blueprint Gaming has the classic Megaways features of cascading wins and a horizontal belt above reels 2-5 of its 6 reel array.  What makes it more than just another Megaways slot is firstly its reuse of the much loved video game inspired lead character from King Kong Cash and secondly the choice of ways to progress directly to the bonus round if you don’t want to wait  – if the operator has enabled the Bonus Bet button (not all of them have).

    100x stake buys the regular bonus round of 12 free spins with an increasing multiplier.  Collecting Golden Monkeys during the bonus round awards extra spins and upgrades the minimum number of Megaways per spin.

    150x stake buys a spin of the mystery bonus wheel which offers the opportunity to short circuit the process of collecting Golden Monkeys.  It awards a random number of free spins with a random Golden Monkey upgrade level (so starting with a higher minimum number of Megaways).

    Return of Kong Megaways can be played from 10p a spin and has RTP of 96.13%



    * New customers only. Min deposit and spend £20 = £40 bonus. 35 x wagering reqs apply. 20 Free Spins on ‘Banks of Gold’, ‘Rainbow Chameleon’ & ‘Well Well Well’. Spin value £0.10. 10 x wagering on free spins. Bonus & Free Spins valid for 7 days. T&Cs apply..

  • Play Who Wants To Be A Millionaire at Spin Rider
    100% Slot Bonus (up to £300) & 50 Bonus Spins

    Who Wants To Be A Millionaire is the latest release from Big Time Gaming, the creators of Bonanza and of the Megaways system.  Big Time Gaming are known for the extreme high volatility of their slot games and thrilling bonus rounds – and Who Wants To Be A Millionaire has by far the most insane and ridiculous bonus round yet seen.

    The base game plays very much like Big Time Gaming’s earlier release Extra Chilli, and the bonus round builds on a concept first seen in Extra Chilli – the ability to gamble the bonus round in the hope of getting a better one.  In Who Wants To Be A Millionaire, the entire point is to gamble the bonus round and just as in the TV show, the player has to choose correctly from four options at each step to increase the number of free spins.   Win at every step and the 8 spins initially awarded can go all the way up to 50 spins.  As in the TV show, there are three lifelines and there’s also safety nets at 10 spins and 20 spins ensuring that once you get past the risky first step you can’t lose the entire bonus round.  As the free spins are played with a multiplier that increases with every win, every extra spin won can make a huge difference to potential winnings.

  • Play Fishin’ Frenzy Megaways at Gala Spins
    Jackpot King Slots: Deposit & Play £10+, Get £40 Bonus

    Fishin’ Frenzy Megaways is a pumped up revamp of the classic Blueprint slot from 2014.  The original had just 10 paylines but in the Megaways version, the 6 reels give up to 15,625 ways to win (depending, as always with Megaways, on the number of symbols that land on each reel which varies from spin to spin).  It’s one of the more straightforward Megaways slots out there, without the horizontal reel and exploding symbols of the quintessential Megaways game Bonanza.

    Just as in the original, the fisherman scatter is the key symbol, both for triggering the free spins bonus round and getting big wins once in there; the fish symbols come with price tags representing what you can win in the bonus round if you spin them at the same time as a fisherman.  The game does a great job of combining the look and feel of the original with the thrill of the Megaways mechanic, and in common with many other Megaways slots it has a Buy The Bonus feature whereby a player can pay 100x stake to trigger the bonus round immediately.

    Fishin’ Frenzy Megaways has RTP of 95.02%

    * 18+. New customers only. Certain countries only. Min deposit and spend £10 cash on any Jackpot King game = £40 bonus. x20 wagering reqs apply. Bonus valid for 7 days. Selected games only. T&Cs apply..

  • Play The Great Albini at Wishmaker
    Deposit £10+, Get Up To 500 Wish Spins on Starburst

    The Great Albini by Foxium via Microgaming is a 25 line slot themed on a stage magician and his glamorous assistant, with a free spins bonus round that is played on an expanded 6×5 array with 50 paylines.  The game has other features including the Lily Wild reel which stays in place for a respin, and the Mystery Box Respin, but by far the most interesting thing about The Great Albini is the inclusion of the Bonus Box underneath the reels.  Click on this and you’ll be presented with three options to buy the bonus round; the full 12 spins cost a whopping 150 x bet but it is also possible to buy 8 or 10.  The RTP is 96.66%.

  • Play Valletta Megaways at Gala Spins
    Jackpot King Slots: Deposit & Play £10+, Get £40 Bonus

    Valletta Megaways is another in the series of Megaways games by Blueprint.  It has 6 reels each of which displays up to 5 symbols giving up to 15625 ways to win.  The city of Valletta is the capital of Malta which is a major base for the iGaming industry but the theming harks back to the island’s epic past.

    Valletta Megaways is a Buy The Bonus Round slot.  The Valletta Bet can be bought for 100x stake.  This awards a spin that is guaranteed to produce at least 3 scatters for 10 free spins (but may produce more scatters for higher numbers of free spins).  During the bonus round, the Valletta Streak feature is active.  This is basically sticky wins – on any winning spin, the winning symbols stay in place for a respin and respins continue until no new winning symbols appear.  If all the symbols on the reels become sticky, more free spins are awarded.

    The Valletta Streak feature can also be randomly triggered during the base game and other features randomly add extra scatters of wild to the reels to keep things interesting.

    Valletta Megaways has RTP of 96.45% – or 97% if you do nothing but buy the bonus round (as we suspect many will).

    * 18+. New customers only. Certain countries only. Min deposit and spend £10 cash on any Jackpot King game = £40 bonus. x20 wagering reqs apply. Bonus valid for 7 days. Selected games only. T&Cs apply..

  • Play Extra Chilli at Casino Joy
    Deposit £10 - £200, Get 100% Slot Bonus & 200 Starburst Spins

    Extra Chilli by Big Time Gaming is a Megaways slot which was the first game in which you could not only buy the bonus round but also gamble it (repeatedly) to get a better bonus round with an extra 4 free spins – extra spicy indeed!  Megaways slots are quite high variance anyway and the ability to buy and gamble the bonus round sends the variance through the roof.

    Buying the bonus round in Extra Chilli will cost you 50x stake and if you gamble and lose, you can return to the base game with no free spins at all which is pretty brutal.  In subsequent games with the gamble the bonus round feature, it was refined so that players could make smaller gambles to increment the free spins one at a time and have a better chance of winning.

    Play Extra Chilli long enough and you may manage to collect enough BTG coins to get the bonus round at a knockdown price or even free – if you haven’t lost your shirt, your shoes and the horse you rode in on by then.  Handle with extreme care!

  • Play Genie Jackpots Megaways at Gala Bingo
    Deposit & Spend £10, Get £50 Bingo Bonus & 30 Spins

    Genie Jackpots Megaways is a sequel to the very popular Genie Jackpots slot by Blueprint, but unlike the original it is not part of the Jackpot King progressive jackpot suite.  Instead, it uses the Megaways game mechanic under license from Big Time Gaming. In Megaways, the symbols vary in height so the number of possible winning combinations across the 6 reels changes with each spin depending on the number of symbols that land on each reel.  In Genie Jackpots Megaways, 2 to 5 symbols can land on a reel – giving 15,625 ways to win if all 6 reels have 5 symbols each. Symbols score the same and count as one symbol only regardless of height.

    Genie Jackpots Megaways has the wealth of bonus features you’d expect from a Blueprint slot game.  There are four bonus features (similar to the bonus features in that Blueprint classic Ted) which can be triggered by any spin plus four different bonus rounds (one of which is selected via the Cave of Wonders pick-me when free spins are triggered by the appearance of 3 or more scatters).  Can’t be bothered to wait for the bonus round?  Depending on where you play Genie Jackpots Megaways you may be able to use the Genie Bonus Wish feature (another Big Time Gaming invention) to trigger the bonus round immediately for 100x stake (some operators do not have this feature enabled).

    * New online customers only. Min 1st deposit & spend £10 on Bingo tickets = £50 Bingo bonus + 30 Free Spins on Age of the Gods credited next day. Spin value: £0.20. Wagering reqs apply: 4x bingo bonus; 10x free spins. Bonus & free spins valid for 1 week after credit. T&Cs apply..

  • Play Vikings Unleashed Megaways at Gala Spins
    Jackpot King Slots: Deposit & Play £10+, Get £40 Bonus

    Vikings Unleashed Megaways is one of several games produced by Blueprint using the Megaways mechanic under licence from Big Time Gaming (who invented it).  The base game plays very like Bonanza and what makes it different to many other Megaways slots is the bonus round – or rather the elaborate mechanisms for setting up the bonus round.  There are FOUR different options for buying the bonus round (priced at 25x, 50x, 75x and 100x spin value) and before the bonus round starts the player can gamble to get a better bonus round – one extra spin and one multiplier step at a time.  Gambling successfully all the way up to the maximum of 27 free spins starting with a 10x multiplier can open the way for a very large win indeed, as every cascade win during the bonus round increases the multiplier by 1, but lose a gamble and you lose the entire bonus round.

    Vikings Unleashed Megaways has RTP of 96.5% and can be played from 20p a spin; at that spin value the cheapest buy the bonus round option (5 free spins) is priced at £5.

    * 18+. New customers only. Certain countries only. Min deposit and spend £10 cash on any Jackpot King game = £40 bonus. x20 wagering reqs apply. Bonus valid for 7 days. Selected games only. T&Cs apply..

Back in November 2017, Big Time Gaming released a game with a new feature that would change the face of online slots.  That game was White Rabbit and the feature was “Feature DropTM” – aka buying the bonus round.

Big Time Gaming were already well known for producing slots with insane bonus rounds but, as is the way with high variance slots, players were having to wait a long, long time to play them.  White Rabbit short circuited that by providing a means for players to go straight to the bonus round for 100x stake.

In White Rabbit, players could also collect BTG coins during a session of play to reduce the cost of triggering the bonus round (or eventually trigger it immediately), but this part of the feature hasn’t made a reappearance in many of the later releases, probably because everyone who was interested in buying the bonus round would do so at the start of play and not wait to get BTG coins to bring the cost down.

Big Time Gaming weren’t just catering to impatient players by making it possible to buy the bonus round – they were also getting themselves masses of free publicity.  Their earlier games Bonanza and Danger High Voltage had already established the idea of high variance slots as a spectator sport on the Twitch live streaming platform.  Feature Drop meant that the streamers could make things much more exciting for their audience by missing out all that boring waiting for the bonus round – and it also meant that by buying the bonus round multiple times, they could get a REALLY good bonus round to post on YouTube without too much time and effort (just lots of money).  The number of such videos on YouTube now is a testament to the brilliance of the idea.

Big Time Gaming’s next releases Extra Chilli took the idea even further.  In Extra Chilli, not only can a player instantly buy the bonus round, but they can then gamble the bonus round to try and get a better bonus round – not just once, but multiple times all the way from the basic 8 free spins up to 24 free spins.

It wasn’t long before other game providers got on board with the idea – first Blueprint, on several of their games with the Megaways reel array also invented by Big Time Gaming, and then Foxium with The Great Albini (notable because it otherwise doesn’t resemble a BTG slot).

We expect to see many more slot games with this feature in the future – if the Gambling Commission continues to allow it, that is.  Some people think that buying the bonus round puts players at risk of becoming problem gamblers; it certainly enables a huge amount of money to be gambled (and potentially lost) in a very short space of time.  Even at the minimum spin value of 20p, the bonus round in Extra Chilli costs £10 to buy and because of the gamble facility, the £10 can be instantly lost and another £10 spent right away; at the top spin value of £40, that’s a huge £2000 that can be lost in less than a minute (making FOBTs look like small potatoes).   If the Gambling Commission takes a dim view of this we may see a situation where either buying the bonus or gambling the bonus round is allowed, but not both – and therefore special UK versions of some games with the Buy The Bonus button disabled.  Perhaps this is why one of Big Time Gaming’s more recent releases Who Wants To Be A Millionaire, where the whole point of the bonus round is the gambling of it, doesn’t have a facility to buy the bonus.