Editorial note: this is a general guide to how Gem Rocks works. Slot rules, feature availability and RTP can vary between operators and game versions, so always check the in-game information panel before you spin. Slots are games of chance — nothing here is a prediction of results, and no strategy changes the odds.
Gem Rocks slot review
Gem Rocks is a high-volatility slot from Yggdrasil, released in February 2018, with six reels, four rows and 4,096 ways to win. It has no free spins round; instead, Drop Down Wins and the Gem Rock Feature reward chains of wins from a single spin by adding Monster Rocks, giant blocks of one symbol. The maximum win is 9,217x the stake.
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How Gem Rocks plays
A win needs three or more matching symbols on neighbouring reels, starting from the far left, and every extra copy of that symbol on a reel multiplies the number of winning ways. The red star is the top-paying gem and the crescent-moon gem comes next, with the other coloured stones below them.
Drop Down Wins applies to every winning spin. The symbols in a win disappear and new ones drop into their places, so one spin can keep paying for as long as fresh wins appear.
The Gem Rock Feature
A meter beside the reels tracks consecutive wins within one spin, and certain steps on it bring in a Monster Rock, a giant gem creature made of a single regular symbol:
- Two wins in a row: a 2x2 Monster Rock.
- Five wins in a row: a 3x3 Monster Rock.
- Nine wins in a row: a 4x4 Monster Rock.
Yggdrasil designed each block to drop into the highest-paying position on the reels. Because a Monster Rock spans several reels and rows at once, it can add a large number of ways in a single drop and keep a chain of Drop Down Wins going.
Game information
| Provider | Yggdrasil |
|---|---|
| Released | February 2018 |
| Reels and ways | 6 reels, 4 rows, 4,096 ways |
| Volatility | High |
| Maximum win | 9,217x stake |
| RTP | Shown in the game’s information panel |
| Stake per spin (UK) | UK stakes are capped at £5 a spin (£2 for players aged 18 to 24) |
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Find Gem Rocks in the Fortune Games lobby (18+). You can also browse our slot game guides.
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
Frequently asked questions
Does Gem Rocks have free spins?
No. Yggdrasil built it around Drop Down Wins and the Gem Rock Feature, which both work during normal spins.
How do you get a 4x4 Monster Rock?
You need nine wins in a row from the same spin. Two in a row bring a 2x2 Monster Rock and five bring a 3x3 one.
Is Gem Rocks a high-volatility slot?
Yes. Yggdrasil rates its volatility as high, which means results can swing more from spin to spin.
What is the RTP?
The game’s information panel shows it. RTP can differ between operators and game versions, so check the panel in the version you play.
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