Gem Rocks from Yaggdrasil Gaming

RTP: 96.2%

Unleash the power of Gem Rocks! Let the gems guide you to colossal wins.

Unleash the power of the mountain in Gem Rocks, a colossal casino game from Yggdrasil Gaming. This title transports you to a fantasy world inhabited by giant stone monsters made of precious gems. Its main attraction is an explosive combination of Dropdown Wins and the Gem Rock feature, where consecutive wins summon gigantic monster symbols onto the reels for guaranteed wins. Let the gems guide you to colossal wins in this unique and action-packed mobile slot!

Provider: Yggdrasil Gaming
Release Date: 2018
RTP: 96.2%
Volatility: High
Max Win: 9,217x
Theme: Fantasy / Gems / Monsters
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Feature Value
Reels 6
Rows 4
Paylines 4,096 ways to win
Min Bet €0.10
Max Bet €50
Max Win 9,217x
Jackpot No
RTP 96.2%
Volatility High
Hit Frequency 21.3%

Thematics and Design: The game is set in a rocky, mountainous landscape where giant Gem Rock monsters slumber. The design is powerful and epic, with a fantasy feel that is both unique and visually impressive.

Graphics and animations: The graphics are superb, with a detailed and rugged 3D style. The highlight is the animation of the colossal Gem Rock monsters awakening and crashing down onto the reels, shaking the entire screen in a spectacular display of power.

Sound Accompaniment: A deep, rumbling, and epic orchestral soundtrack plays, creating a sense of immense scale and power. The sounds of cracking stone, tumbling rocks, and the monstrous roars of the Gem Rocks create a thrilling and cinematic audio experience.

Regular Symbols: There are eight regular symbols, all represented by different colored and shaped gems. The blue crescent moon, green circle, pink rhombus, and red square are lower-paying, while the four characterful gem monsters are the high-paying symbols. The star-shaped red monster is the most valuable symbol.

Special Symbols:

  • This is a pure action classic slot and does not feature any special Wild or Scatter symbols. All features are built into the base game’s win mechanics.

Starting the rockslide is easy. Set your bet amount, then press ‘Spin’. The game pays for matching symbols on adjacent reels. The key to the game is achieving consecutive Dropdown wins to summon the giant Gem Rocks. To see these colossal monsters in action, we recommend trying the free slot machine demo on our site. The game is perfectly optimized for a mountain-shaking experience on all devices.

Dropdown Wins

This is the core mechanic. Any time you form a winning combination, the winning symbols will explode and disappear. New symbols will then drop from above to fill the empty spaces, creating the chance for a chain reaction of wins from a single spin.

The Gem Rock Feature

To the side of the reels is a win meter that tracks your consecutive Dropdown wins. When you achieve a certain number of wins in a row, you are guaranteed to summon a colossal Gem Rock monster symbol on the next drop, which guarantees a win:

  • 2 Consecutive Wins: Summons a 2×2 Gem Rock.
  • 5 Consecutive Wins: Summons a 3×3 Gem Rock.
  • 9 Consecutive Wins: Summons a massive 4×4 Gem Rock for a truly colossal payout!

RTP: Gem Rocks has a high RTP of 96.2%, which is above the industry average and offers players solid theoretical value.

Volatility: This is a very high volatility casino game. The gameplay is all about chasing that long chain of dropdowns to summon the biggest Gem Rock monster. While many spins can be quiet, the potential for a single spin to erupt into an avalanche of wins and a giant guaranteed payout makes it incredibly thrilling.


Gem Rocks is a brilliantly simple yet highly effective slot. It strips away complex bonuses to focus on one incredibly exciting and powerful core mechanic. The build-up of tension as you chase more consecutive wins is masterfully done. With its epic theme, huge win potential, and thrilling gameplay loop, Gem Rocks is a must-play for fans of high-volatility action and colossal symbols.

Pros Cons
✅ Exciting Dropdown and Gem Rock feature ❌ Very high volatility is not for everyone
✅ Huge max win potential of over 9,000x ❌ No free spins or traditional bonus rounds
✅ Simple, fast-paced, and action-packed gameplay ❌ Can be very tough to get the 9 wins for the biggest monster
✅ Epic theme with fantastic graphics and sound

Suitable for: High-rollers, thrill-seekers, and players who love colossal symbols and cascading win mechanics.


What is the RTP of Gem Rocks?

The RTP of this slot is a high 96.2%.

Can I play Gem Rocks for free?

Yes, a demo version of this free slot machine is available on our site for you to experience the colossal Gem Rocks without any risk.

Does Gem Rocks have a free spins feature?

No, Gem Rocks does not have a free spins feature. All of its action is built around the Dropdown Wins and the Gem Rock feature in the base game.

What is the maximum win in Gem Rocks?

The maximum potential win is an impressive 9,217 times your total bet.

Is Gem Rocks mobile-friendly?

Yes, Gem Rocks is perfectly optimized with HTML5 to work on all modern mobile phones and tablets.


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