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RTP 97.4%
Play iSoftBet Slots
Reels 5
Paylines 25
Min bet size
Max bet size
RTP 96.5
Wild symbols NO
Free spins YES
Bonus YES
Jackpot 6000 coins

Booster Slot Review

The Booster slots game can be found at casinos offering iSoftBet software. iSoftBet are one of the newer casino software providers on the market but they have managed to tie down some impressive branded slots game contracts. As a standard iSoftBet do not publish the RTP/House Edge information for their slots games within the game help file or paytables. However as part of the UKGC license requirements many UKGC licensed operators have started to publish this information for all of their games. As such we can tell from Trada’s site that the House Edge of Booster is 2.60%.

Drift through the stars with this spacey gaming experience.

Booster slots is a 5 reel game with 25 paylines.

There is no Wild symbol when playing Booster.

There is only one bonus features when playing Booster and it is activated when you receive 3 or more of the ‘Lightning Bolt Bonus’ scatter symbol anywhere on the reels. When this happens you will be taken to a new screen showing 8 potential prizes. Click the ‘Start’ button and a light will rotate and award one of the prizes. The available prizes are as follows:

- 6000 coins.

- 5 free spins with all wins multiplied by 5.

- 10 free spins with all wins multiplied by 2.

- 10 free spins with all wins multiplied by 3.

- 50 free spins with all wins multiplied by 2.

- 100 free spins.

- 15 free spins.

- A mystery prize.

If you win free spins the bonus feature cannot be retriggered during the free spins.


With the best will in the world, the bonus feature offered by Booster is hardly the most innovative in the world. However, the House Edge of Booster is amongst the lowest you’re every likely to encounter making this game very good value for money even if it is a little lacking in the bonus feature department.

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