Gem Rocks

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Reviewed by: Isabelle Lort Twitter
Last updated: 11/10/2022

Gem Rocks from Yggdrasil gives you the chance to win up to 9,000 times your stake with monster-sized monster symbols, avalanches and a whopping 4,096 paylines. A lucky hit on the game can bring monstrous winnings-it's just a matter of having the nerves to play. Join Yggdrasil's mysterious cave where high-paying gems and huge stone figures can appear at any time!

Low deposit
18 + - play responsibly-min. deposit 50 SEK, - 0x wagering requirements
Fast Payouts
18 + - play responsibly-Terms & Conditions apply - only one bonus per player and license. - Minimum deposit$ 100-35x in wagering requirements-valid for 30 days from the moment the bonus is activated.
🎁 Without turnover 🎁
18 + - play responsibly-min. deposit 100 SEK-winnings are real money with 0x wagering requirements. Meet deposit requirements 30x to be awarded bonus-valid for 60 days

Our Rating
Game information
Games 2018
Max profit 9,000 X bets
Reels / paylines 6/4096
Theoretical payback-RTP 96.2
Coin value 0.02 - 10$
Total effort 1 - 500$
Volatility High
Free spins No
Bonus features Avalanche function, mega symbols

Gem Rocks casino games

About Gem Rocks slot

Gem is English for gemstone and Rock is English for stone or rock. The theme clearly follows from the title. In Gem Rocks from Yggdrasil, you will try to hit combinations of gems hidden in a world of gray stone. To make the whole thing a little more exciting (and a little more colorful), Yggdrasil has also stuffed large monsters of stone. The story seems to be that, by snooping around the Stone world for gems, you awaken the monsters from their slumber, but when they appear, they only benefit your game box!

Gem Rocks casino games offer a lot of specialties. However, the graphics cannot be said to be an incredible story. We understand that the possibilities of taking out the turns with a theme like $ etching $ ing rocks and boulders might be a little less, but Yggdrasil's game designers would have been able to put a little more$into most of it, especially as the game's high volatility doesn't exactly make every spin a spectacular story.

The basic idea of Gem Rocks is that you are on the six reels and four rows (4096 paylines! try to get combinations of at least three symbols of the same kind. If you succeed in doing so, an avalanche function is activated through which you have the chance of successive wins. The more winning hits you win in succession, the greater the chances of winning. Periodically in your odyssey of winnings, huge stone monsters appear to help you to winnings. With eight avalanches in succession, you have the chance to get full screen!

Stakes and winnings

To play on Gem Rocks with its six reels, four rows and 4096 paylines, you should bet between$ 1 – $ 500. You adjust the bet by entering the coin value in the range of 2 cents – 10$. As you can see, you don't put 4096 coins at stake in every spin. Instead, multiply your coin value by a factor of 50. Thus, a coin value of$ 0.50 gives a total bet of$ 25, and so on.

There is no video slot in Yggdrasil's range that has as high a risk as Gem Rocks. That's not saying little because this developer loves launching games on online casinos with a high volatility. Gem Rocks even beats Vikings Go to Hell, a slot that many consider incredibly difficult to win on. The extremely high volatility makes it difficult to win. If you were to have large portions of luck with you, the game can at the same time be extremely generous.

Gem Rock'S RTP is 96.20%. It's better than 96.00-96.10% which is the average for Yggdrasil slots, but some impressive figure is not. The maximum profit figure is all the more impressive. In fact, there is a, albeit microscopic, chance of winning up to 9000 times the bet!


Eight different stones in eight different colors-there you have the gallery of symbols in Gem Rocks. As I said, We think the design team could have worked over a few hours in the development phase to make everything a little nicer. The symbol that pays the best is the one that shows a red gemstone with a star. The rest are in the form of various geometric shapes enclosed in square blocks. There are no special symbols at all. You will not find wilds, scatters or bonus symbols on the reels.

Game features

Without free spins and bonus games, a slot easily becomes a little rough. In addition, if a slot lacks wilds, the immediate appeal becomes even lower. Yggdrasil has tried to balance this out with an avalanche feature and Mega symbols.

Avalanche function

The Avalanche feature is now commonplace among those who love to play slots online. There are lots of slot machines with a avalanche or drops -feature. Similar to other slots with boulders, such as Asgardian Stones and Gonzo's Quest from NetEnt, Gem Rocks also has such a feature. It is called for drop down .

The idea of the drop down feature is to give you multiple winning chances in each spin. If you manage to land a hit, the winning symbols fall away to make way for new ones. A successive winning hit brings another avalanche, and so it goes on.

Mega monster symbols

If you manage to get a bunch of wins in succession using the drop down feature, you will get to play automatic re-spins with mega symbols. Two straight wins activate a stone monster that takes up 2×2 positions. When it appears, it places itself in the place that brings the greatest profit.

If you are lucky and you hit three straight wins, a 3×3 stone monster will land on the screen. With four more consecutive wins (nine in total from the moment you click Start a game) you will be rewarded with a 4×4 stone monster symbol. Depending on how the other symbols have positioned themselves on the screen, you will get a number of winning hits of four, five and six positions respectively on the 4096 paylines.

By the way, Mega symbols are found on the reels even in the ”base game”, but it should be said that they do not immediately appear very often.


Gem Rocks may very well be perceived as the absolute stingiest slot machine on the net. You should not be surprised if you are forced to endure 20-30 spins without getting a meager win, and activating the first stone monster can feel like an overpowering task. You should have the patience of an angel to play at Gem Rocks. In addition, you would do well to have a slightly larger bankroll if you want to make a real attempt to bring home a little bigger winnings. You can activate a casino bonus if you want more to play for.

Leaving aside the sky-high volatility, we can say that we think Yggdrasil should have put more$into the design. A slot with an extremely high risk should in our opinion offer us players a more inviting gaming atmosphere so that we do not get tired faster than quick.

Garen has been writing casino reviews for many years. She is meticulous and detail-oriented. Among her favorites we find, among others online casino games with great game selection, casino bonuses with fair conditions and responsible gaming.