IO is a space themed slot game with a handful of features and bonus rounds. The feature itself counts to four in numbers which have incorporated some amazing reward payouts. Inspired by the space theme, the game is settled on a gravity chamber with symbols falling from the top. 

About IO

IO’s layout and interface has the same galaxy-space theme with a starry background. The game has no music to accompany the play. The introduction has a buzzy robotic voice over instructing the players to start the game. 


The patterns here include stars, 4-leaf clovers, diamonds and lucky red 7s. All these symbols appear on circles and include low-value A, K, Q and Js. The lucky red 7 symbol is the most expensive shooting player 1, 2, 3 or 5 times your stake for 3, 4, 5 or 6 in combination. There is also a wild symbol which substitutes for all symbols mentioned. 


The avalanche and charged wild features are the central features here in this play. It works with winning symbols exploding to make way for new symbols to come in. Consecutively a new row gets added which give the players more patterns to win. Such a process repeats itself until a new winning combination occurs. 

The number of rows can increase up to 8 which will, in turn, allow up to 262,144 ways to win in total.

Bonus Features

The main dazzle of this slot is the Bonus Game feature. This is played when the players happen to land 3 bonus scatter symbols. This will enable 7 free spins with 8 rows. They also get to retrigger this option. With this, charged Wilds and wild forge symbols are collected at the bottom of the reel set between free spins to increase the overall winning algorithm. 


IO is a game for calculated winnings. It has all the features of a proper slot game. 

The only lack here is the winning ratio. This can be seen through the rtp of IO.