Game description

All-Star Knockout Ultra Gamble (Yggdrasil)

All-Star Knockout (Yggdrasil)All-Star Knockout was designed by Northern Lights Gaming, in partnership with Yggdrasil.

These types of partnerships are growing in popularity, and Microgaming is also known for this type of partnership.  

All-Star Knockout is a classic fruit slot, but the developer has incorporated some modern features to bring in a more decent look.

Game Set-Up

This latest release by Yggdrasil boasts of a 5x4 reel set up, which is quite a large game area. The slot also comes with 20 pay lines.

In addition to offering large payouts, All-Star Knockout comes with great features that include free spins and multipliers (up to 5x).

Betting and Prizes

The game has 20 pay lines, and as a player, you will be required to select the bet amount that goes in them.

Bet prices range at between $0.20 and $400 per spin or $0.01 to $20 per each of the 20 lines.

The slot’s highest jackpot can go to as high as 4,500x the stake. It may not be as huge as what we have seen on other Yggdrasil slots, but considering that this is a low to medium volatility game, it has good potential.

For its RTP, Yggdrasil has announced a 96.09%, which is quite satisfying.

All-Star Knockout Slot Features

Interestingly, Yggdrasil opted to use other features instead of the wild symbol that is quite common in modern slots.

One of these features can be triggered randomly, while the other one through the help of collected symbols.

The random feature goes by the name, the Random Bonus. This one can be activated once you lose some of the spins.

With the Random Bonus, you will get 3 win spins. Each of the rounds comes with a guaranteed prize, however small it might be.

The second feature borrows from the slot’s title, and it goes by the name Knockout Bonus.

The Knockout Bonus allows you to collect Star symbols from the slot’s reels, after which they are added to the meters close to the reels, within the Award Board.

Free spins are present as well, and to trigger them, you are required to accumulate at least 5 stars. In return, the slot will reward you with 5 free spins, with a 5x multiplier, which is randomly selected on each spin.

Theme & Design

All-Star Knockout is a classic fruit-themed slot, which is one area that I don’t like very much.

For the symbols, Yggdrasil uses the Star symbol, and icons of icons KO logo, Plums, Red 7, Blue 7, White 7, Oranges, Lemons, and Cherries.

All-Star is part classic, and part modern, and its graphics, together with the layout is quite interesting.


All-Star Knockout is a somehow unusual slot game, and it is quite hard to classify it.

However, Yggdrasil has offered a decent RTP for this game, and although the top rewards are not as high, its low volatility serves it pretty well.

It’s low to medium volatility makes it an ideal slot game for players who have little experience in the industry.

UPDATED ON: by James Worden
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