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Io Review

Embark on a journey to Io, one of Jupiter’s moons, in search of prizes that are out of this world! Different types of Wilds may appear on the reels to help you scoop wins, and you can chain together consecutive wins thanks to the Avalanche feature. The game grid increases in size after winning spins, boosting the number of ways to win to more than 260,000! Keep reading our Io review for all the information you need before you play Io for the first time.


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Io Technical Features

Io is played on a six-reel slot with dropping symbols and amazing features. The game starts with four rows but new ones are added as you create winning combinations! Each new row added to the reels increases the number of ways to win:

  • 4 rows: 4,096 ways 
  • 5 rows: 15,625 ways
  • 6 rows: 46,656 ways
  • 7 rows: 117,649 ways
  • 8 rows: 262,144 ways

Io has a 96% RTP and offers a maximum win of 500,000 coins. You can bet between 0.20 and 100 per spin. 

The 7 symbol is worth up to 10x your bet, the Diamond pays up to 2.40x, and the Clover awards up to 1.20x. Land the Star symbol to win up to 0.90x. The playing card symbols pay the smallest prizes in the game, with up to 0.30x on offer for a win. 

Several bonus symbols can land on the reels, too, potentially triggering bonus features!

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Io Bonus Features

Wild Symbol

The Wild substitutes for all standard symbols.

Charged Wild

The Charged Wild has four additional lives, and spends one of these when it forms part of a winning combination. Like the regular Wild, Charged Wilds substitute for all standard symbols. 

Avalanche

The Avalanche feature kicks in when you create a winning combination: any symbols that contribute to the win, apart from Charged Wilds, vanish. An extra row of symbols joins the top of the game grid, with a maximum of eight rows available. The Avalanche feature goes on and on for as long as you build winning combinations! 

Wild Forge

The Wild Forge inserts a multiplier Wild into one empty space below, and the multiplier’s value increases each time the Wild Forge is used. When it drops to the bottom, the Wild Forge transforms into a multiplier Wild!

Laser 

If the beams from two Laser symbols cross, those symbols (and all standard ones along the beams up to the point at which they cross) become Wilds. One Laser symbol takes itself, and all standard symbols along the beam, off the reels. 

Bonus Symbol

Match three Bonus Scatters to trigger the Free Drops Bonus Game. 

Free Drops Bonus Game

The bonus game is played on the maximum eight rows. Between free drops, all Charged Wilds and Wild Forge symbols are collected at the bottom. 

Io Theme and Design

Unlike most other slots, Io has an exciting storyline behind the slot-spinning action: a casino space station is denied access to Earth and sets off on a journey through space. Jupiter’s powerful gravity draws the station towards one of its biggest moons, Io, which is home to a wealth of minerals. It’s a simple setup but adds a little more depth and character to the game. 

As Io takes place on the casino space station orbiting Io, the moon is visible in the background, rotating slowly. The symbols drop into a massive tube in the centre of the screen, and more are added when the Avalanche feature kicks in. Io’s fantastic electronic music adds to the futuristic feel, too, and suits the exciting space theme perfectly.  

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Conclusion and Verdict

Io is a futuristic slot with plenty to recommend it, from the Avalanche feature that adds extra rows to the reels when you win to the Free Drops Bonus Game. If you want to try it yourself, just sign in and play Io at Genting Casino today!

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V: 1.20.0 All rights reserved. August 2021
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