Gem Blast

Shine bright with Gem Blast, the slot game that is out of this world! With a Jackpot of 777x which can be won by blasting 77 gemstones, a Mystery Win that could be triggered every time you win, a Beam Bonus which converts a row or column into 7 identical gems to double the win and The Bomb feature which explodes to create a block of 3x3 identical gems to also double your win. It’s all to play for in Gem Blast slot game.




Min Bet


Max Bet

Bonus: Jackpot x777, The Bomb, Mystery Win, The Beam

Gem Blast - Buttons


Press the Stake button to select your desired bet amount that you wish to play with.


Make sure your Stake is selected and once you’re happy, press the Spin button to begin.


In Gem Blast slot game, you can press the Auto button to spin your reels automatically for a number of rounds you wish.


Select the 3 dots in the top right corner of your screen to view the paytable, sound, full screen and help options.

Gem Blast - Bonus Features

Jackpot x777

In Gem Blast slot game, when you land a consecutive win or a blasting reaction, you will gain progress on the Gems Sand Meter. If you manage to blast a total of 77 gemstones, you will win the jackpot of 777x your total stake!

The Bomb

Keep a lookout as bombs can explode on your reels to create a block of 3x3 identical gems which doubles the win. The bomb that land on the reels will choose a gem to be cloned at random. Not only that but you can win up to 3 Bombs at once anywhere on your reels. The bombs awarded at random reuse the gems that cover. The bombs that cause explosions will overlap and create blocks of identical gemstones to try and create potential new winning combinations.

Mystery Win

In Gem Blast slot game, every gemstone win could potentially trigger a random bonus from a generous 7x to a staggering 77x your total stake!

The Beam

Introducing The Beam to Gem Blast slot game! Every beam converts a row or column into 7 identical gems and doubles your win. The beams which land on your reels will pick a gem at random to be cloned. Also, you can win additional random bonus awards of up to 2 beams at once anywhere on your reels. The beams awarded at random anywhere reuse the gems that cover. For every two beams on the reels, they will convert a cross of 13 identical gemstones.

Castle’s Verdict

Here at Castle Jackpot, we think that Gem Blast slot game is bringing a galaxy theme to the reels from it’s neon striking background to the gemstone symbols. Gem Blast reminds us very much of Starburst as that also follows a similar galactic theme. When it comes to potential, we think this slot game has plenty of it due to the range of bonus features available to trigger. But that’s not all, Gem Blast is easily accessible to all players as it is available to play on desktop, tablet or mobile, making it a lot easier for players to access it at home or on the go!