Powered by 5 progressive jackpot prizes, Gem Machine is a steampunk-themed video slot machine produced by Scientific Games. With a maximum of 5 reels, 5 rows and 5 paylines, the game comes with more than an interesting set of rules enhanced with Buy-a-Reel feature and re-triggerable Free Spins. The Gem Machine slot review will also tell you more about the main prize of 150.000 coins, so read it and learn how to win this massive amount of cash.

Tired of reading? See the Gem Machine screenshots below and then claim one of the bonus offers of our recommended casinos to play for free or real!

Gem Machine screenshots

Scientific Games Gem Machine Slot Review
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Spin the reels and if machine creates gems, you’ll receive an instant payout. But wait, it’s not that simple. You’ll see glowing buttons placed above each reel, so press 1 to 5 and activate them. Players with bankrolls strong enough to support this idea can also turn on the Autoplay mode and spin the reels for a predefined number of times without any interruption.

Each gem on the paytable award 1 out of 3 multipliers: Green Gem grants 1x, 2x or 5x, Blue Gem pays 10x, 20x or 50x, while flaming Yellow Gem awards 100x, 500x or 1000x your stake.

The coin value ranges from €0.05 to €30, so you can wager between €0.05 to €150 per round, depending on the number of active reels.

Your betting strategy heavily affects the jackpot size, so the lucky winners should respectively count on 3.000, 6.000, 30.000, 60.000 or 150.000 coins for Mini, Minor, Major, Mega or Grand Jackpot. To collect the prize, prospective winners should catch the appropriate symbol on a specific reel.

Finally, this is a game you can play for fun or for real money, depending on your ambitions and experience. The same set of rules stand no matter of your decision, with the only difference the Gem Machine Free Play comes with demo coins. Practically, earning the Gem Machine Bonus prize will have much more sense when you wager for cash.

FAQ on Scientific Games Gem Machine

1. What kind of special features can you expect?
When a free spin symbol appears on the reels, you will receive a number of Gem Machine Free Spins according to the number indicated on that very symbol. Initially, you can play 1, 3 or 5 rounds at the casino’s expense, but each new free spin symbol guarantees another session, under described conditions.
2. Are there any limitations when playing on a mobile device?
You can play online around the sites powered by Scientific Games directly on your mobile device. This also means you won’t have to download an app for Android or iPhone.
3. What is the RTP factor of Gem Machine?
According to the official info, the RTP goes between 95.00% and 97.00%, depending on the number of active reels, as described in our Gem Machine recension.

Our conclusion

At first glance, this is a challenging game and it takes some time to get the ropes. Under the hood, the innovative layout is more than understandable and soon enough you’ll master all rules. There is a wide variety of betting options making the game suitable for the widest audience. In any case, we suggest you try implementing the Gem Machine tips if your plan is to play at the hardest level.

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