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Alien K.O. slot

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Beware, aliens are coming to earth and they are planning to take everything in their way. Alien K.O. is also the first game from Green Jade Games, which we cover on our website, so we are quite excited to have a taste of their product. Having this said, we have had previous experience with their slots, in total Alien K.O. is the 5th game in the Knockout Series, a new game mechanism which Green Jade have been implementing more and more. Hide in some basement or come out and fight, the choice is yours on Alien K.O.

Green Jade Games is a very unique provider. One of their marketing selling points is skill-based gambling. You might be a bit confused because video slots always have been 100% random, right? Yes, and that is still true, but the Knockout Series use an interesting game mechanism which might give you a small edge if you know what you’re doing. You will be able to experience this on Alien K.O. and we will do our best to help you “gamble with skill”. If you play your hand right, then Alien K.O. can supposedly pay out 10,000x, which definitely is a good haul.

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Alien K.O. Slot Review

Green Jade Games
Provider: Green Jade Games
Game Layout
6 Reels x 4 Rows
Game Layout: 6 Reels x 4 Rows
Paylines: 50
Volatility: High
93% - 97%
RTP: 93% - 97%
Max win
Max win: 10,000x
Bet Range
0.50 - 25
Bet Range: 0.50 - 25
Bonus features
yes (3) Knockout Feature, Loot Box, Free Spins
Bonus features: yes (3) Knockout Feature, Loot Box, Free Spins
Release date
18th of January 2021
Release date: 18th of January 2021

Gameplay and Design

The mothership has landed on the east coast. Aliens, for their own weird purposes, are looking to collect every single living being. Even the cows and chickens are not safe. Alien K.O. game layout is located on the screen of an alien ship. We can also see two aliens operating this ship. Every time you score a win, these aliens do a move, that looks like a funky dance move. The slot takes place in farmlands of US, but the farm itself can be seen just faintly in the background. Background music has got strong Sci-Fi vibes, especially the whistle tune that associates strongly with aliens.  
alien k.o. cow symbol
Alien K.O. comes with an extended 6 x 4 layout which uses 50 paylines in total. Symbols of the game are split into 3 categories, as opposed to the regular two. Low value symbols are your usual 10 – A. They are styled with a slight Sci-Fi touch, but they are still pretty basic. Alien K.O. mid value symbols are animals of the farm, such as goat, pig and cow. Finally, the high value symbols consist of a scarecrow, a farmer woman and a farmer man. All living beings have a frightened and surprised look on their faces, meanwhile, scarecrow just lays there, oblivious to what’s happening. The visuals of the game and symbols look okay. You can tell that Green Jade have improved their presentation skills, but there is still some way to go, before slots, such as Alien K.O. can be considered beautiful.

Green Jade Games love high volatility slots. That has pretty much been the trend for all of their games. Alien K.O. is not much different as this slot comes with that big potential. Supposedly, the max win possible on Alien K.O. is 10,000x. This is a decent payout, which definitely can attract some more sceptical players. Alien K.O. comes with variable RTP. This means that the operator can decide if it’s going to be 93%, 95% or 97%, so be sure to look at this before you begin your play session. Alien K.O. uses the skill balance pot, which provides a more consistent return to players that invest more time in the game. Alien K.O. slot is available to play on all devices with bets from 0.50 to 25 EUR/GBP.

Alien K.O. Bonus Features

During the Alien K.O. base game, you will come across two special symbols. One of them is the regular Wild and the other is the Loot Box symbol. The Loot Box can contain a cash price or a ticket to Free Spins. You will need to match 3 or more Loot Boxes horizontally on adjacent reels, otherwise, they won’t open. Contents can range from 2x to 1000x, or a chance to score up to 50 Free Spins. The more boxes you match, the greater is the potential reward. The special addition to the Free Spins is the Sticky Wild Symbol. Just like the regular Wild, these symbols can appear on different random positions, although this time Sticky Wilds will stay in their place for the entirety of the bonus.

alien k.o. loot box

Your gambling skill can come to fruition with the Knockout feature mechanism. You have the control to remove every symbol on the reels, while new ones appear from the top. So for example, if you land 2 Loot Boxes, you can try to swap some symbols for a chance to land the third Loot Box. Of course, this function has its limits, as the K.O. Meter will display how many K.O. charges you have left. Alien K.O. charges are stored on the right side and more can be acquired by simply playing the game.  


Green Jade Games definitely have a very individual approach to their games. They try to make every slot special and unique. This is a quality that some providers have been lacking so it’s a refreshing sight. Alien K.O. is a fun slot, but it’s also not a perfect one. The average RTP is 95% and it can go down to 93% in some instances. This can create a tough playing environment, but luckily with the help of Knockout mechanism and the skill balance pot, the odds even out. We believe that K.O. series have a good overall potential, so it will be interesting to see where Green Jade Games take it. 


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