Aiwin Games
Underground
Play Underground slot by Aiwin Games for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.
RTP
—
return to player
Volatility
—
variance
Max win
—
top multiplier
Min bet
$0.05
per spin
Reels
5
15 lines
Player rating
5.0 ★
13 votes
Why this score
Partial data (57%)Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.
Payouts & RTP—
no data
Volatility—
no data
Win Potential—
no data
Features5.5/10
5 features → 5.5/10
Game Mechanics9.7/10
f=5 r=5 p=15 → 9.7/10
Context signals (tie-breakers)
Layout6/10
5x3 → 6.0/10
Bet Flexibility10/10
0.05–750 (×15000) → 10.0/10
Provider Reputation4.7/10
provider avg 4.7 → 4.7/10
Popularity0/10
synthetic proxy → 0.0/10
DEMO Play free, no signup
Aiwin Games
Spec sheet
Underground at a glance.
Math
Index score57
RTP
Max win—
Bet range$0.05 – $750.00
Player rating5.0 / 5 · 13 votes
Format
Reels5
Paylines15
Layout5x3
Features
Themes
Compare Underground with other games
 Underground Score 57This game |  Dead Canary Score 77 |  Mining Rush Score 80 |  More Gold Diggin Score 75 |  Money Miner Score 47 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | Pragmatic Play This provider has been reviewed and approved by the SlotRanker team. What does this mean? | ||||
| Released | — | 12/20/2022 | 12/6/2024 | 3/15/2014 | 2/25/2025 |
| Math | |||||
| RTP | — | 94.12% | 95.49% | 94.53% | — |
| Volatility | — | High volatility | High volatility | High volatility | — |
| Max win | — | 65,000× | 10,000× | — | — |
| Format | |||||
| Reels | 5 | 6 | 6 | 5 | 5 |
| Layout | 5x3 | 6x3 | 6x5 | 5x3 | 5x3 |
| Paylines | 15 | 36 | 0 | 25 | — |
| Min bet | 0.05 | 0.20 | 0.20 | 0.02 | 0.10 |
| Max bet | 750.00 | 1.00 | 5.00 | 125.00 | 50.00 |
| Features | |||||
| Progressive | — | — | — | — | ✓ |
| Wild symbol | ✓ | ✓ | — | ✓ | ✓ |
| Free spins | ✓ | ✓ | ✓ | ✓ | ✓ |
| Scatter symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Multiplier | — | ✓ | — | ✓ | — |
| Bonus game | ✓ | — | — | ✓ | — |
| Respins | — | ✓ | — | — | — |
Every number is shown as a delta against Underground.
Comparing against
Underground
Aiwin Games
RTP
—
Max win
—
Score
57
Dead Canary
NoLimit City
RTP
94.12%
Volatility
High volatilityMax win
65,000×
Score
77▲+20
+ Multiplier+ Respins− Bonus Game
Mining Rush
Pragmatic Play
RTP
95.49%
Volatility
High volatilityMax win
10,000×
Score
80▲+23
− Wild− Bonus Game
More Gold Diggin
Betsoft
RTP
94.53%
Volatility
High volatilityMax win
—
Score
75▲+18
+ Multiplier
Money Miner
888 Slots
RTP
—
Volatility
—Max win
—
Score
47▼−10
+ Progressive− Bonus Game
Underground FAQ
Is it possible to play Underground without registration?
Absolutely. Underground includes a no-cost demo version you can launch instantly.
Is there a mobile version of Underground?
Yes, the mobile version of Underground offers the same features as desktop.
Can I play and win cash on Underground?
You can enjoy Underground for real cash at a wide range of online casinos.
Is it possible to buy a bonus in Underground?
Unfortunately, Bonus Buy is not available in Underground.
Can I trigger Free Spins in Underground?
Free Spins are part of the gameplay in Underground.
Does Underground feature the Megaways system?
The Megaways mechanic isn't used in Underground.
Can players hit a progressive jackpot in Underground?
No, Underground does not include a progressive jackpot.
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