Gems Bonanza Slot Review
Free demo, RTP, volatility and max win
8.0Value score · Very good · how it works
Gems Bonanza review: Pragmatic Play's 2020 8×8 cluster slot with tumbles, Lucky Wilds, five bonus levels and a 10x top multiplier, at 96.51% RTP.
- #610by RTP of 3,708 slots
- #778by value of 3,708 slots
- #38by value of 137 slots from 2020
Play Gems Bonanza free: demo, no sign-up
Free play money from Pragmatic Play's official demo. 18+. No deposit and no account; a demo does not predict real results.
Basic information
| Software | Pragmatic Play |
|---|---|
| Release year | 2020 |
| Theme | Gem and jewel slots |
| RTP | 96.51% |
| Volatility | Not published |
| Max win | Not published |
| Hit frequency | Not published |
| Reels and rows | 8 × 8 |
| Win system | Cluster pays |
| Features | Cascading reels, Free spins, Cluster pays |
| Named in the rules | Free Spins, Tumble Feature |
| Game type | Slot |
| Data verified | 2026-09-28 |
Source: Pragmatic Play game page; RTP database by toolsgambling.com (CC BY 4.0); image: Pragmatic Play promotional image from the official game page. How we collect data · Report a mistake
Gems Bonanza review
Gems Bonanza plays like a treasure map. Pragmatic Play's 2020 slot uses an 8×8 grid, pays for clusters of five or more and tumbles winning symbols away. Coloured markings on the board form a path that leads to a spin feature: Nuclear power that brings new symbols, or Lucky Wilds that land in random positions. Climb the levels and the last one carries a 10x multiplier. The studio does not publish a max win or a volatility rating.
Clusters, tumbles and an 8×8 board
A win needs at least five connected matching symbols. Winners disappear, the rest fall to the bottom and fresh symbols drop in from above. Tumbling keeps going until there are no more winning combinations or spin features, and all wins from a base spin are added to the balance only after every tumble and feature has finished.
The wild substitutes for all symbols. It never appears on its own but only through the Wild Gem and Lucky Wilds features, and the same wild can join several groups of different symbols.
Spin features and the path
The coloured markings on the grid form a path that leads to a spin feature. The studio lists two of them by name, and a bonus level structure sits around them.
Lucky Wilds
A green mark awards this feature. After all the tumbles from the current spin have finished, between 5 and 15 wild symbols are added to the screen in random positions.
Nuclear power
The studio describes a spin feature with a Nuclear power that can bring new symbols onto the screen. It is one of the modifiers that Gold Fever switches on.
Gold Fever
This feature activates all spin modifiers together. Reaching the last level rewards a 10x win multiplier. The rules add that the feature ends when too few winning symbols have been collected to advance, or when all spin features from level 5 have been played.
What the catalogue and the rules disagree on
The catalogue gives a 96.51% RTP. The rules document states a theoretical 96.55% instead, a small gap. The catalogue also flags free spins for this game, but the studio description does not describe a free spins round. The bonus it describes is the level path with Gold Fever, so we do not state any free spin counts.
RTP and cost
On the catalogue figure, the house edge is 3.49% and each $1,000 wagered costs about $34.90 on average. In 100 spins the average loss is $0.70 at $0.20, $3.49 at $1 and $17.45 at $5. Under the rules figure the edge would be slightly smaller. No max win is published, so the 10x top-level multiplier is the only ceiling-type number the studio gives, and it is a multiplier on wins, not a limit on them.
Cluster games nearby
Fruit Party lists 96.5% from 2020 with a 5,000x cap, and Fruit Party 2 lists 96.53% from 2021. Sugar Rush, Wild Beach Party and Sugar Rush Xmas, from 2022 and 2023, list between 96.5% and 96.53%. Gates of Hades, from 2025, lists 96.52% with 10,000x.
Pros
- Cluster wins on an 8×8 grid with tumbles
- Lucky Wilds add 5 to 15 wilds in random positions
- Gold Fever activates every spin modifier, and the last level pays a 10x multiplier
- Free official demo available
Cons
- No max win or volatility rating published
- RTP is 96.51% in the catalogue and 96.55% in the rules
- The studio gives few numbers for the level path
Verdict
Gems Bonanza is a cluster slot with a map-style progression: tumbles, Lucky Wilds, Nuclear power and a Gold Fever finale at a 10x multiplier. The 96.51% RTP, or 96.55% in the rules, is in line with its fruit-slot neighbours. With no max win or volatility published and few details on the levels, the free demo is the way to judge how the feature path behaves.
Sources: Pragmatic Play official game page; RTP, volatility and max win from the open Slot RTP Database.
Slots like Gems Bonanza
Gems Bonanza RTP
The data lists one RTP for Gems Bonanza. Versions are not tracked for Pragmatic Play games, so other versions may exist; check the game's info screen.
- 96.51% $34.90 lost per $1,000
Cost of 100 spins
| Bet | Wagered | Average cost at 96.51% |
|---|---|---|
| $0.20 | $20 | $0.70 |
| $1 | $100 | $3.49 |
| $5 | $500 | $17.45 |
Averages computed from the published RTP; real sessions vary widely around them. RTP calculator
Gems Bonanza max win, volatility & stats
- Value score
- 8.0 / 10
- Lost per $1,000 (average)
- $34.90
- Max win at $1 bet
- –
- Wins on average
- –
Percentiles compare this game with the 3,708 games in the catalogue. Max win: not published.
