All Star Knockout Slot Review

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Editor's Rating
Release Date March 11, 2020
Produced By Northern Lights Gaming
Game Type Video Slot
Default bet size €1.00
Max RTP 96.1%
Volatility 71.5
Paylines 20
Default bet range €0.20 - €400

Slot Plot

To become a star in the online slots world, you need to pack a punch. With hundreds of top titles out there, including the always popular Lilith’s Inferno, it takes something special to stand out. Well, thanks to bright minds at Northern Lights Gaming, a serious contender entered the arena in 2020. Developed in partnership with Yggdrasil as part of the YGS Masters program, All Star Knockout is a game that offers more bang for your buck. Through a series of slick combinations, including retro styling and magic stars, this spinner is a true heavyweight. 

In this exclusive All Star Knockout slot review, we’ll show you exactly why this game has become a hit. More importantly, we’ll let you put this game to the test with our All Star Knockout slot free play software!

By now, you’re probably thinking that this game is all about punchbags and boxing gloves. In reality, it’s not. Even though the start of our All Star Knockout slot review picked up on the “knockout” part of the title, this game is actually a fruity classic. Now, we’re not saying the idea of knockouts is completely forgotten.
In fact, we’ll touch on this later in our guide to All Star Knockout slots. For now, though, let’s focus on aesthetics. When you load up the game, a 5X4 game board twinkles back at you. Set among the stars, the black reels are punctuated with beaming fruits. From lemons and cherries to oranges and plums, there’s a real retro vibe to this slot. Things get a little more old school when you factor in a trio of 7s and, of course, some stars. Finally, to ensure the All Star Knockout slot game isn’t stuck in the past, you’ll find an “award board” at the bottom of the screen. Fill one of the slots with stars and you’ll start knocking wins out of the park.


Before you shoot for the stars and go for a knockout win, make sure you try the All Star Knockout slot demo game. By using the All Star Knockout free play slot below, you’ll learn how to master the basics and have some fun while you’re doing it.

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Unfortunately the Free Play option is temporarily suspended in your country due to UKGC compliance.

In the meantime, feel free to play the game for real at one of our top casinos listed below.


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As a product of the YGS Masters program, All Star Knockout is a meeting of minds. The game itself is the brainchild of Northern Lights Gaming (NLG). A rising star in the online gaming industry (ed: excuse the pun), NLG prides itself on making the “best looking and playing” slots around. This, combined with a penchant for creating otherworldly experiences, has made NLG a hit with gamers.

By joining the YGS Masters program, NLG’s developers have been given the freedom to bring their best ideas to life. With a little help from Yggdrasil’s finest, they’ve created a slot that feels familiar but innovative at the same time. By taking a classic theme and launching it into a new orbit, the team have made All Star Knockout a stellar slot that you can now enjoy at some of the best Yggdrasil online casinos.


Before we focus this All Star Knockout slot review towards the exciting things like jackpots and bonuses, let’s get technical for a minute. When you play this YGS Masters hit, you’ll enjoy a theoretical return rate of 96.09%. That’s a fantastic RTP score and one that few video slots can match. In tandem with the All Star Knockout RTP, the hit frequency has been pitched at level 40 and the volatility rating is 71.5. When you piece these elements together, you’re left with a game that not only looks great but, if the stars align, can be highly lucrative.


To play All Star Knockout slots and win jackpots worth up to 4,500X, you need to play for real money. Of course, if you’re simply looking for a bit of fun, you can use the All Star Knockout slot free play software. However, if you want to experience everything this game has to offer, placing a bet or two is necessary. At the lowest stakes, you can spin the five reels and 20 paylines for as little as €0.20. To unlock the largest payouts, you can play All Star Knockout slots for €400-a-round.

Having such as wide range of betting options is great as it means players at all levels can play. What’s even more impressive is that, relatively speaking, the payouts don’t change. Regardless of whether you play for the minimum or the maximum, the All Star Knockout slot jackpot remains the same. Of course, the actual size of your prize will increase or decrease depending on your stake. However, the prize multipliers don’t change.

In practice, this means standard fixed wins start at 3X and scale up to 100X your stake (five KO symbols). However, if you can trigger bonuses and the All Star Knockout free spins feature, you could be in line for payouts topping 4,500X!


At the top of this All Star Knockout  slot review, we told you that stars and knockouts are important. When you load up the game, the first element is immediately obvious as the reels are lit up by stars. However, these celestial orbs have a more important role to play. Basically, each time you spin, stars can appear at random. Each time they do, they’ll be added to one of the award boards at the bottom of the screen.

To get you started, 12 stars will be added to the mix straight away. From there, any additional stars that spin into view will be randomly distributed across the boards. Once you’ve filled a board with ten sparklers, the All Star Knockout slot bonus is triggered. When the bonus is live, you’ll receive five free spins. But, before the reels kick into life, the knockouts we referred to earlier come into play. Each award board features two symbols. When you fill that board and trigger the bonus, its symbols are knocked out of play.

Fewer symbols, more ways to win…

With free spins and a reduced number of symbols on the reels, the only other way to make the All Star Knockout slot bonus more lucrative is multipliers. Just before the reels turn, a multiplier worth up to 5X is selected at random. Once that’s locked in, the All Star Knockout slot free play round begins.

But wait, there’s more! In addition to the All Star bonus, free spins can be triggered at random. To ensure you’ve always got an extra way to win, the software can award free spins after a losing round. Naturally, you won’t know when the bonus is going to strike. However, when it does, it operates on the premise that “you’ll spin until you lose”. Put simply, when you play All Star Knockout slots, the potential is clear for all to see. By unlocking a bonus or two, you could become a proverbial star in the online casino world.


  • Where Can I Play All Star Knockout Slot Machines? Arrow

    You can play the All Star Knockout slot game at many of the best Yggdrasil online casinos. Scroll through our list of reviews to find a site that suits and jump straight to the sign-up page to create your first account today.

  • How Much Can I Win From All Star Knockout Slots? Arrow

    The All Star Knockout slot jackpot is 100X your stake. However, when you throw free spins and multipliers into the mix, you could win up to 4,500X when you play All Star Knockout slot machines.

  • Is the All Star Knockout Online slot game fair? Arrow

    Yes! All Yggdrasil slots are certified as fair. What’s more, our games are backed by the latest online technology. This means you can play safely via your desktop or, if you prefer, the All Star Knockout slot mobile software.


They say that two heads are better than one and this is certainly true when it comes to All Star Knockout slots. Thanks to a merging of minds between Northern Lights Gaming and Yggdrasil, you can enjoy a truly stellar slots experience.

Through a combination of impressive graphics, affordable betting limits and creative bonuses, this game really does have something for everyone. So, if you’re ready to take flight and reach for new heights, check out our top-rated new Yggdrasil casinos and take a spin on All Star Knockout today. 

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