An alien energy reactor crackles into life in Energoonz, an unusual sci-fi themed slot from Play ‘N Go. The game is played using a 5×5 grid with winning combinations created by landing 3 or more matching symbols vertically or horizontally. Look out for cascading reel respins with multipliers as well as a free spins round. Blast off from between 20p and £40 per spin.

Play ‘N Go is one of the better developers when it comes to design and Energoonz is a cracking looking slot. The reels are made up of thunderbolts, flames and atoms as well as a trio of higher value alien symbols. The blinking blue-eyed creature is the best of the standard symbols, paying 25 times your total stake if you land 5 in a row. Even bigger rewards are on offer from the plasma ball wild – land 3, 4 or 5 of these and you’ll pocket 5, 15 or 500 times your total stake!

Following a winning spin, the successful symbols are blasted away by the electro machine to the right of the reels. No new symbols are added but other symbols drop into the vacated spaces. If the new symbol drop combination results in a winner, the payout is boosted by an expanding multiplier and the process is repeated.

Get on a roll here and you could benefit from a boost of up to 10x. If you manage to clear all of the symbols from the reels in the base game, you’ll get a special bonus prize too of 1,000 times your stake!

As the symbols disappear, you’ll notice the letters BONUS are written behind the reels – if you manage to reveal the whole of the word BONUS, you’ll activate the Bonus feature. You’ll then be awarded 10 free spins which are played out on a new set of reels that are made up to 10 new aliens.

The cascading reels aren’t in play here – you’ll need to land between 5 and 10 matching symbols here to create a winner. Rewards range from 1.25 to 75 times your total stake. Keep a special eye out for the energy ball symbol here as you’ll receive another round of free spins if you land 5 on the same free spin. A multiplier, up to 5x, can be randomly applied to your winnings.

This isn’t the most volatile slot you’ll see – the variance here is pretty low. You should get plenty of play for your investment. Energoonz is something of a hybrid, fusing elements of social games, video slots and classic fruit machines. As you’d expect from Play ‘N Go, it looks terrific. The features aren’t bad either with the cascading reels offering plenty of play.

Players looking for some well-designed, low variance, alien action should find plenty to like from these little extra-terrestrials. I would also recommend you play its sequel, Reactoonz, which is very high variance!