ELK Studios
Io
Play Io slot by ELK Studios for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.
RTP
96%
return to player
Volatility
High volatility
variance
Max win
5,000×
top multiplier
Min bet
$0.20
per spin
Reels
6
262144 lines
Player rating
4.3 ★
19 votes
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 & RTP9/10
RTP 96% → 9.0/10
Volatility9/10
high → 9.0/10
Win Potential7.4/10
x5000.00 (5000×) → 7.4/10
Features10/10
19 features → 10.0/10
Game Mechanics10/10
f=19 r=6 p=262144 → 10.0/10
Context signals (tie-breakers)
Layout5/10
6x4 → 5.0/10
Bet Flexibility6/10
0.2–100 (×500) → 6.0/10
Provider Reputation7.6/10
provider avg 7.6 → 7.6/10
Popularity4/10
synthetic proxy → 4.0/10
DEMO Play free, no signup
ELK Studios
Spec sheet
Io at a glance.
Math
Index score81
RTP96%
VolatilityHigh volatility
Max win5,000×
Bet range$0.20 – $100.00
Player rating4.3 / 5 · 19 votes
Format
Reels6
Paylines262144
Layout6x4
Features
Themes
Compare Io with other games
 Io Score 81This game |  Dark 100 Score 81 |  Event Horizon Score 72 |  H.O.P.E. Score 79 |  Space Wins Score 67 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | |||||
| Released | 6/2/2020 | 3/3/2022 | 4/10/2015 | 10/17/2021 | 11/28/2024 |
| Math | |||||
| RTP | 96% | 97.8% | 96.51% | 96.6% | 95.3% |
| Volatility | High volatility | — | High volatility | — | — |
| Max win | 5,000× | — | 1,152× | — | — |
| Format | |||||
| Reels | 6 | 5 | 5 | 5 | 5 |
| Layout | 6x4 | 5x4 | 5x3 | 5x3 | 5x3 |
| Paylines | 262144 | 100 | 243 | 25 | 20 |
| Min bet | 0.20 | 0.10 | 0.02 | 0.10 | 0.20 |
| Max bet | 100.00 | 10.00 | 125.00 | 125.00 | 35.00 |
| Features | |||||
| Progressive | — | — | — | — | — |
| Wild symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Free spins | ✓ | ✓ | — | ✓ | ✓ |
| Scatter symbol | ✓ | ✓ | — | ✓ | ✓ |
| Multiplier | ✓ | — | — | — | ✓ |
| Bonus game | — | — | — | ✓ | — |
| Respins | — | — | — | — | — |
Every number is shown as a delta against Io.
Comparing against
Io
ELK Studios
RTP
96%
Max win
5,000×
Score
81
Dark 100
Smartsoft Gaming
RTP
97.8%▲+1.8
Volatility
—Max win
—
Score
81same
− Multiplier
Event Horizon
Betsoft
RTP
96.51%▲+0.5
Volatility
High volatilityMax win
1,152×▼−3,848
Score
72▼−9
− Free Spins− Scatter− Multiplier
H.O.P.E.
Nemesis Games Studio
RTP
96.6%▲+0.6
Volatility
—Max win
—
Score
79▼−2
+ Bonus Game− Multiplier
Space Wins
Red Rake Gaming
RTP
95.3%▼−0.7
Volatility
—Max win
—
Score
67▼−14
Same feature set
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