User rating5 / 5

Lucky Koi slot from Microgaming

Lucky Koi slot from Microgaming
Playing at 2014’s Lucky Koi slot machine by Microgaming is a great way to chill out and forget all about the daily rat race many of us are in every day. There’s no ingenious plot to figure out and no complicated characters to get to know and appreciate for their good or bad qualities. Just several Chinese Feng Shui and lucky symbols, mixed with other traditional symbols bringing good fortune to all who are spinning these reels. All that’s left to do is go with the flow and cross your fingers—nothing to it. The Symbols (including all the regulars: Ingot, Lucky Coin, Lotus flower, Turtle, and Frog) are calming the nerves, just by their serene appearance alone. The absence of a soundscape also helps ease the mind and concentrate on the 5x3 grid and its 25 win lines. We advise you to try the Thunderstruck Wild Lightning slot by Microgaming for free.

Focus on the Lucky Koi slot machine logo, Wild, and pay 40x the total bet for 5OAK, but don’t underestimate the Chinese Landscape Scatter either, as it pays even more - 100x for 5OAK. Dropping at least 3 of them will offer you a choice between Free Spins and a Fish and Click bonus round.

All in all, this laid-back Medium Volatility slot with a generous (theoretical) RTP of 96.47% and a max win of 125 000 coins is surely worth casting a line or two. On this page, you can try the Lucky Koi slot machine for free in the instant DEMO version without having to register.

Personal testers’ opinion

We enjoyed testing this chill slot. It has fine graphics, mild colours, and beautiful symbols, smooth and easy gameplay. The Lucky Koi slot machine surprised us pleasantly by triggering the Free Spins/Bonus round more often than expected. Statistically, every 81st spin, it’s a ‘Hooray’! Our average win was around 27x total bets in this mode, which wasn’t all that gratifying, but since it occurred so frequently, it was still alright. In the base game, we got a maximum win of 58x our bet. Also not amazing, but it kept us in the race. However, we are in the race to win some, not just to push Play. The division of the total prize pool is as follows: for the main game - 62%, for the Bonus feature - 38%. That shows bigger chances of winning something you will have in the regular spins. So, the low paytable here is the reason for most of the negatively resulted sessions and the poor maximum score we could book. Therefore we don’t recommend this slot to players who want to win large amounts. Lucky Koi online slot takes a middle position in the ranking for wagering with 5.07 (out of 10) index points, which means neutral advice for the bonus hunters.

Hidden parameters of Lucky Koi slot (data from the testing team)

  • The frequency of triggering the bonus is statistically, every 81st spin (1,24%).
  • The probability of a hit (any winning) is 37,77%.
  • The distribution of the winnings is 62% in the usual spins and 38% in the bonus feature.
  • The maximum payout during the tests was 58x.
  • The average winning from the bonus was 27x.
  • Volatility is 6,95 out of 20 (average).
  • Cycle length is average.
  • The rating of the slot machine for the wagering is 5.07 out of 10.
  • RTP of 96.47% allows getting a positive mathematical expectation at the casino.


  • Wild Lucky Koi Logo - is paid modestly (40x for 5OAK) and replaces all symbols other than Chinese Landscape Scatters.
  • Chinese Landscape Scatter - is the highest valued (100x for 5OAK), and landing at least 3 of them will offer you a choice between 2 bonus features:
    1: 10-30 Free Spins (can be re-triggered) with a multiplier up to x5.
    2: Koi Bonus feature - Fish in the Koi pond and grab 3 to 6 Koi, awarding you with great Cash prizes.
    Additional picks might also be awarded.


  • Number of reels - 5
  • Number of pay-lines - 25
  • Cost of the same coin - from 0.01 to 0.10
  • Number of coins per line - 1-10
  • The range of the size of bets - from 0.01 to 25
  • The maximum winning is 125,000 coins (at a game at the highest stake and all filled cells with a wild symbol or Koi fishes).
  • Wild symbol - yes (an inscription with the name of the slot).
  • Scatter - yes (Chinese Pagoda, which triggers the bonus game or free spins).
  • Free spins - yes (up to 30 free spins with a multiplier to x5).
  • Bonus game - yes (choose small fishes for which you will be given the additional payments).
  • The expected payout percentage - 96.47%

Where to play?

  • The best place in Canada to launch a Lucky Koi slot for free or real money is Fastpay Casino. They offer over 5300 casino slot games as well as super-fast and no-hassle withdrawals. In addition, you will be pleased with their bonus program and a VIP bonus program for all loyal players.

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Written by Kamen Valev
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