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Gems Bonanza Free Play in Demo Mode by Pragmatic Play

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Gems Bonanza

Game information

Game developer Pragmatic Play
Progressive Jackpot
Configurable winlines
Bonus feature
Free spins
Quickspin feature
Gamble feature
Last update 15 Jun 2022
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Gems Bonanza

Gems Bonanza slot online for free in demo mode. Play free casino games, no download required. Expert review included.

7.0 Guru Score
Quick verdict

This high RTP (96.51%), high volatility Aztec adventure slot is packed with treasures.

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About game provider

Gems Bonanza review

Theme and Storyline

This slot is themed around an Aztec world and its many gems.

Set on a dark night, this game has mythical vibes. Players will come upon ancient ruins and face glowing reels of precious stones.

While an ominously carved face looks on, players will test their luck to see if they’ll walk away with the treasure.

The Aztec design is as much fantasy as archeology, but that’s all part of the fun. Players will feel the warm evening air as they collect the jewels.

With a breathtaking magical atmosphere, this game is a fantastic adventure.

Gems Bonanza big win
Superb big win in the Gems Bonanza slot

Graphics, Sounds and Animations

The soundtrack mixes flutes and drums for a tension-inducing tribal mood. The gems land in the reels with satisfying plunks, and wins celebrate with traditional slot zings.

The animation of the gem symbols is sumptuous, with vivid emeralds, rubies and citrines. Each one seems to sparkle with shimmering transparency, and they seem tempting in the reels.

Players seem to be standing high up one of the Aztec pyramids, as they look down at the dark ruins and the edge of the wilderness.

Beside the reels is a cavern opening shaped like a mouth with gold pouring between its lips. This seems both tantalising and terrifying, as if reaching for the treasure could mean being gobbled up by a God.

Finally, an Aztec stone calendar encircles a majestic carved face. The eyes seem to watch the players, reminding them that they must complete their trial before dawn.

Overall, the front end of this game is immersive and beautifully constructed.


Gems Bonanza is an eight reel, eight row slot. Wins are awarded to players for a minimum of 5 symbols connected horizontally or vertically. The greater the cluster of symbols, the greater the payout to the player.

This game uses a cascade feature, which means that any symbols that were part of winning combinations disappear. The symbols that are left then slide down into empty places on the reels, and the next symbols fall down on top of them.

Gameplay video

Wilds, Bonuses and Free Spins

The Wild symbol substitutes for all symbols. It only appears while players are in the Wild Gem and Lucky Wilds features. Players may create multiple winning combinations using the same Wild symbol.

In the backdrop of the reels, special positions are assigned to marks of three types. When a win happens on one of these positions, players are awarded a special spin feature.

These special spin features include: a random symbol transforming to a Wild, a cluster of matching symbols being added to the reels, and more.

Players work towards the Gold Fever Progressive feature as the number of winning symbols that have vanished are counted in a meter. When a particular threshold is reached, the feature is triggered.

With the Gold Fever Progressive feature players work up through levels of increasing multipliers. All spin modifiers are guaranteed to play once per level.

Gems Bonanza & Colossal symbol feature
One of the bonus features - the Colossal Symbol

Bet Sizes, RTP and Variance

The return to player of this game is 96.51%, above our yardstick for average of roughly 96%.

The range of bets on the site we tested ran from a minimum bet per spin of $/£/€0.20 up to a maximum of $/£/€100 per spin.

The volatility of this game is high, which makes it an excellent match for our preferred slot machine strategies. Our slot strategies target the highest possible volatility.

Gems Bonanza full paytable
Full paytable for Gems Bonanza slot machine


We recommend this high RTP, high volatility Aztec jewel-themed slot.

The robust mathematical profile makes this game a great choice for maximizing chances for bigger wins, plus the South American fantasy world keeps it engrossing.

The bonus opportunities give this game an extra entertaining twist.

Author: Jon Pill | This review was last updated: 15 Jun 2022
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