Experience a close encounter of the third kind in Green Jade Games’ latest addition to its Knock Out series, Alien K.O.


Out now


Alien K.O. is a 6×4 slot which includes Green Jade Games’ Knockout (K.O.) feature along with Free Spins with Sticky Wild symbols.




This title has three different RTP levels: 93 per cent, 95 per cent and 97 per cent.


The game puts players at the controls of an alien spaceship, which has just touched down on an unsuspecting farm in the deep south of America.

The spaceship is hooked up to Green Jade’s Knockout engine, which allows players to knock symbols out of the reels in order to create a cascade effect. 

Players have a K.O. meter that sits at the right-hand side of the game window and displays how many K.O. charges they currently have, with a maximum cap of 10 charges. 

Each charge allows for a single symbol knockout. Charges are earned by base game spins at the rate of five spins per charge. 

Player’s must get K.O. symbols to line up three Loot Box symbols horizontally to trigger the game’s bonus features, which include Free Spins, Instant Cash or a combination of the two. 

The more Loot Boxes the player can align, the greater the prize they receive. Whether the prize is Instant Cash or Free Spins is determined at random. 

If Free Spins are triggered, players can also take advantage of Sticky Wilds that appear while the bonus is active. If they land, they will remain in position for the duration of the bonus. 


Mark Taffler, chief commercial officer at Green Jade Games, said: “Our K.O series is proving to be incredibly popular with players as it combines elements of skill with RNG gameplay. 

“The Alien theme has been incredibly well executed by our design team, and provides an engaging and entertaining game that players can return to time and again. 

“These games really are unique and allow operators to acquire and retain players at scale, while also standing out from their rivals.” 


To play a demo version of Alien K.O., click here.