Booster Slot: Offline
This slot is an exciting creation developed by iSoftBet. This five-reel space-themed game incorporates a range of interesting features such as bonus scatters and free spins, making for enjoyable gameplay. Play our slot demo right here!
Facts on Booster Slot
Fact Checker: Maxime
Last Checked: 09/21/2025
Booster is a iSoftBet online slot with 5 reels and 25 Fixed paylines. We have collected information on the most important facts about the slot, which you can find in the table below.
Demo Game
Gameplay
Across its five-reels, there are 25 possible payline combinations. The lowest stake per spin is 25p, and you’ll be praying for the bonus symbol to rear its head because it triggers some great rewards, including a 6000 coin instant win, up to 100 free spins, and free spin and multiplier combinations. The starry night sky provides the perfect backdrop to some otherworldly gameplay, which includes single, double or treble bars awarding Booster slot payouts of up to 25, 50 and 100 coins per payline. Look out for the diamond symbol which offers a 2000 coin payout if you land it on all five-reels. This game does feel like a classic fruit machine in many ways. It’s clear and simple, and the features are quite limited and easy to understand. It harks back to days gone-by, something akin to the Space Invaders of the slot machine world.
How to win This Slot?
| Symbol | 2 Symbols | 3 Symbols | 4 Symbols | 5 Symbols |
|---|---|---|---|---|
| Diamond | x5 | x50 | x500 | x2000 |
| Red Seven | x30 | x100 | x500 | |
| Blue Seven | x25 | x75 | x200 | |
| Star | x20 | x50 | x150 | |
| Triple Bar | x15 | x25 | x100 | |
| Double Bar | x10 | x20 | x75 | |
| Bonus Game | x2 | x15 | x30 | |
| Bar | x5 | x15 | x25 |
Video Preview
Conclusion – Simple and Fun Slot Machine Action
If you are looking for a cutting-edge slot with mega payouts and a labyrinth of special bonus slot features, this isn’t the slot game for you. It is, though, very rewarding and satisfying when you hit a purple patch, and the variance of rewards is decent enough to keep you coming back. There’s not much depth in terms of a background story or character building – in fact, beyond the starry backdrop, there’s little on offer in this regard. The sound effects are kept to a minimum, and you can turn these off anyway, in case you prefer to whack a Spotify tune on instead. The graphics are neat and tidy – no complaints there. For a simple online fruit machine, the Booster slot game does the job. If you’ve given this one a spin, feel at liberty to contact us below with your thoughts.
Your Opinion Counts!
Share your Thoughts on Booster
Leave a Comment