3 Oaks
Rio Gems
Play Rio Gems slot by 3 Oaks for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.
Only 0.02% of slots combine 25 Paylines and Random Bonus Symbols.
Index score
74
/ 99
74
05099
The Slot Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.
RTP
95.69%
return to player
Volatility
High volatility
variance
Max win
10,000×
top multiplier
Min bet
$0.25
per spin
Reels
5
25 lines
Player rating
3.9 ★
6 votes
DEMO Play free, no signup
3 Oaks
Why this score
High confidence (100%)Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.
Payouts & RTP8/10
RTP 95.69% → 8.0/10
Volatility9/10
high → 9.0/10
Win Potential8/10
x10000.00 (10000×) → 8.0/10
Features10/10
16 features → 10.0/10
Game Mechanics7.2/10
f=16 r=5 p=25 → 7.2/10
Context signals (tie-breakers)
Layout6/10
5x3 → 6.0/10
Bet Flexibility4/10
0.25–20 (×80) → 4.0/10
Provider Reputation7.1/10
provider avg 7.1 → 7.1/10
Popularity2.5/10
synthetic proxy → 2.5/10
Popularity Proxy is a conservative derived signal. SlotRanker does not yet use live play telemetry for this category.
Spec sheet
Rio Gems at a glance.
Math
Index score74
RTP95.69%
VolatilityHigh volatility
Max win10,000×
Bet range$0.25 – $20.00
Player rating3.9 / 5 · 6 votes
Format
Reels5
Paylines25
Layout5x3
Features
Themes
Compare Rio Gems with other games
 Rio Gems Score 74This game |  Carnaval Drums Score 67 |  Masquerade Score 53 |  Alohawaii: Cash Collect Score 69 |  Countdown to Fortune Score 78 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | |||||
| Released | 12/2/2022 | 2/3/2025 | 5/16/2020 | 7/5/2023 | 12/25/2024 |
| Math | |||||
| RTP | 95.69% | 96% | 94% | 95.87% | 96.46% |
| Volatility | High volatility | High volatility | — | Medium volatility | Medium volatility |
| Max win | 10,000× | 3,125× | 300× | — | — |
| Format | |||||
| Reels | 5 | 5 | 5 | 5 | 5 |
| Layout | 5x3 | 5x3 | 5x3 | 5x3 | 5x3 |
| Paylines | 25 | 20 | 20 | 30 | 5 |
| Min bet | 0.25 | 0.20 | 0.20 | 0.10 | 0.00 |
| Max bet | 20.00 | 80.00 | 300.00 | 500.00 | 0.00 |
| Features | |||||
| Progressive | — | — | — | — | — |
| Wild symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Free spins | ✓ | ✓ | ✓ | ✓ | ✓ |
| Scatter symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Multiplier | — | — | — | — | ✓ |
| Bonus game | ✓ | — | — | ✓ | ✓ |
| Respins | ✓ | — | — | — | ✓ |
Every number is shown as a delta against Rio Gems.
Comparing against
Rio Gems
3 Oaks
RTP
95.69%
Max win
10,000×
Score
74
Carnaval Drums
Gameburger Studios
RTP
96%▲+0.3
Volatility
High volatilityMax win
3,125×▼−6,875
Score
67▼−7
− Bonus Game− Respins
Masquerade
KA Gaming
RTP
94%▼−1.7
Volatility
—Max win
300×▼−9,700
Score
53▼−21
− Bonus Game− Respins
Alohawaii: Cash Collect
Rarestone Gaming
RTP
95.87%▲+0.2
Volatility
Medium volatilityMax win
—
Score
69▼−5
− Respins
Countdown to Fortune
Naga Games
RTP
96.46%▲+0.8
Volatility
Medium volatilityMax win
—
Score
78▲+4
+ Multiplier
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