Spadegaming

Lucky Koi

Play Lucky Koi slot by Spadegaming for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

Only 0.02% of slots combine Risk/Gamble (Double) Game and Turbo Spin.

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Index score
70
/ 99
70
05099

The Slot Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

RTP
96%
return to player
Volatility
variance
Max win
top multiplier
Min bet
$0.01
per spin
Reels
5
20 lines
Player rating
4.9 ★
3 votes
DEMO Play free, no signup
Spadegaming
Lucky Koi
4.9 / 5
3 ratings
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User ratings are shown separately from the Slot Score unless stated otherwise.

Why this score

Partial data (71%)

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Slot score profile across 5 weighted categoriesPayouts & RTP9/10RTP 96% → 9.0/10Volatility8/10imputedimputed medium…Win Potentialno dataFeatures10/1014 features →…Game Mechanics6.3/10f=14 r=5 p=20 →…
Payouts & RTP9/10
RTP 96% → 9.0/10
Volatility8/10imputed
imputed medium (unknown) → 8.0/10
Win Potential
no data
Features10/10
14 features → 10.0/10
Game Mechanics6.3/10
f=14 r=5 p=20 → 6.3/10
Context signals (tie-breakers)
Layout6/10
5x3 → 6.0/10
0.01–200 (×20000) → 10.0/10
provider avg 6.6 → 6.6/10
synthetic proxy → 0.0/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Spec sheet
Lucky Koi at a glance.
Identity
Slot nameLucky Koi
Released12/25/2018
Math
Index score70
RTP96%
Max win
Bet range$0.01 – $200.00
Player rating4.9 / 5 · 3 votes
Format
Reels5
Paylines20
Layout5x3

True Cost to Play

Expected average based on this slot's 96% RTP — individual sessions vary with volatility.

Cost per hour$0.16
Cost per session$0.16

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

Bankroll survival simulator

How long could a bankroll last on Lucky Koi? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Volatility tier: Mediumassumed — not published for this slot

Running simulation…
How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (Medium). The model is calibrated so the average return equals this slot's published RTP (96.00%), with wins capped at its top multiplier (1,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Compare Lucky Koi with other games

Lucky Koi
Lucky Koi
Score 70This game
Fortune KoiFortune Koi
Score 64
Lucky BatsLucky Bats
Score 67
Fortune KoiFortune Koi
Score 40
Fortune LionFortune Lion
Score 68
Identity
Studio
Spadegaming This provider has been reviewed and approved by the SlotRanker team. What does this mean?
Released12/25/20189/24/20243/1/20182/21/2018
Math
RTP96%96.02%96.42%
VolatilityLow volatilityMedium volatilityHigh volatility
Max win
Format
Reels55555
Layout5x35x35x35x35x3
Paylines2024301024
Min bet0.010.100.550.002.00
Max bet200.0090.001375.000.0020.00
Features
Progressive
Wild symbol
Free spins
Scatter symbol
Multiplier
Bonus game
Respins

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Questions & Answers

Lucky Koi FAQ

8 questions

When you play Lucky Koi, you may expect an RTP of 96%.

For sure. You can start a free demo version of Lucky Koi right away.

Yes, Lucky Koi works perfectly on mobile devices.

Yes, just select one of the casinos shown above to start playing Lucky Koi with real funds.

No, there is no Bonus Buy feature in Lucky Koi.

Yes, the Free Spins feature is part of Lucky Koi.

No, Lucky Koi is not a Megaways game.

There is no progressive jackpot reward at Lucky Koi.

Series

Lucky Koi

View all 2 games
GameYearRTPVolatilitySlot Score
Lucky Koi
Lucky KoiCurrentSpadegaming
201896%70
Lucky Koi Exclusive
Lucky Koi ExclusiveLatestSpadegaming
202296.52%Medium volatility72
  • Lucky Koi
    Lucky KoiCurrent
    Spadegaming · 2018
    RTP96%Score70
  • Lucky Koi Exclusive
    Spadegaming · 2022
    RTP96.52%Score72Medium volatility
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