All Star Knockout Slot Machine

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All Star Knockout demo
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Return to player Min bet size Game type Variance Reels Progressive Jackpot
96.1% 0.20 Video Slots High 5 No
Popularity Max bet size Game provider Bonus Features Paylines Theme
150 Yggdrasil Gaming Yes 20 Stars

Return to player


Min bet size


Game type

Video Slots





Progressive Jackpot



Max bet size


Game provider

Yggdrasil Gaming

Bonus Features






All Star Knockout online slot game

The All Star Knockout online slot title brings players back to the days of classic slot gaming but instead of 3 reels you get 5 reels. Spin the reels and collect stars to trigger an exciting bonus knock out game where wins of over half a million Euros or Dollars are possible!

Theme and Story Line

This slot’s theme is all about knockout stars and classic slot fruit symbols. It uses fruits and 7s to bolster its classic slot look and feel while adds in an award board that must be filled up to trigger the ‘All Star Knockout Bonus’ which is the highlight of the game.

Graphics, Sounds, and Animations

All Star Knockout has a game resolution of 16:9. It was released 11 March 2020 to support mobile and desktop browsers such as Chrome, Firefox, IE, and Safari for instant play gaming while other online casinos may use a downloadable app. The slot’s design uses basic 3D graphics in order to replicate a classic slot style theme with fruit, 7s, and bar symbols. 

Although Yggdrasil has designed a modern slot using graphics and symbols familiar to classic slot players, there are tons of modern animated effects, a funky up to date soundtrack, and inventive sound effects.

All Star Knockout 1

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Yggdrasil advertises this slot as having a max win of €675,450. It is played using 5x4 reels giving you 20 symbols at any one time. There are also 20 pay lines to line up symbols left to right in 3-symbol, 4-symbol, and 5-symbol combinations over reels 1-2-3, 1-2-3-4, and 1-2-3-4-5 respectively. 

You only have 8 symbols to link up across the 20 pay lines. The most lucrative of these symbols is the ‘KO’ which pays out 100x, 60x, or 30x the ‘bet per line’ for 5, 4, or 3-symbol combination wins in that order. Other symbols include a red 7, white 7, and blue 7. Then there are 4 fruit symbols which are the cherry, orange, plum, and lemon. All symbols are stacked into sets of 1, 2, and 3.

To figure out the ‘bet per line’ simply divide your ‘total spin bet’ by the 20 fixed pay lines. Therefore, if your total bet is 40.00 per spin, then you are betting 2.00 per line (40 bet total ÷ 20 pay lines). Using the ‘KO’ 5-symbol combination example mentioned above. which pays 100x the ‘bet per line’, a bet of 2.00 per pay line will pay back 100 x 2.00 which results in a win of 200.00.

In order to make things easier, you can simply open the slot’s mobile menu and click on ‘i’. Scroll down to see a list of all payouts associated with each symbol. While the paytable is open, you will be able to adjust your bet and payouts for each combination will dynamically update according to your bet adjustment. 

In addition to the paytable menu option, you also have a mute sound ‘Speaker’ button and an ‘Auto spins’ tool. The auto-spins tool allows you to configure the ‘total stake’ per spin and select the ‘number of plays’ from 10 up to 1,000 automatic spins.

All Star Knockout 2

Bonuses and Free Spins

Award Board:  The award board has 5 stars available for each of the 8 symbols. When a star symbol lands on the reels, it will randomly fill up one of the starspots associated with a symbol. The award board is set per stake, so if you change your bet, then it will reset, but if you decide to go back to your previous stake, the stars will have been saved.

All Star Knockout: When any of the award cards have 5 stars associated with a symbol, then the All Star Knockout bonus will be triggered. You will be given 5 free spins. More award cards can be filled during the free spins bonus adding additional free spins.

Free Spins Multipliers: x5, x4, x3, or x2 multipliers will be selected when the bonus begins and applied to all wins.

Random Bonus: A re-spin can trigger at random at any time and guarantees that the first spin produces a win. It will then continue until there are no more wins.

Bet sizes, RTP and Variance

Use the ‘STAKE’ option to configure your bets from 0.20 up to a massive 150.00 per spin. This betting range will suit both low-ball players as well as high rollers willing to fork out 150.00 per spin. Yggdrasil volatility rating for the All Star Knockout online slot is 71.5%. This makes it a medium to a high variance slot and the RTP of 96.1% is average for a Yggdrasil slot game.


The All Star Knockout video slot title by Yggdrasil Gaming gives classic slot players the chance to a comeback in the good old days when classic slot fruit symbols and 7s ruled the reels. The key to winning on this slot is to trigger the awards card bonus. When triggered, the slot seems to be more generous with payouts compared to the base game!

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