The Lucky Koi online slot machine is a 5-reel game developed by iSoftBet that revolves around an Asian-themed aquatic atmosphere. The game offers various exciting features, including free spins, scatters, wilds, and bonus rounds, set against the backdrop of a serene koi pond.

Theme and Design

The Lucky Koi theme transports players to a peaceful oasis where colorful koi fish swim beneath tranquil water lilies, creating an immersive experience. The reels are surrounded by lush Lucky Koi slot greenery and adorned with delicate stone ornaments, exuding a sense of serenity. The graphics, sound effects, and animations are well-designed, contributing to the captivating atmosphere.

Symbols

The game features a variety of symbols that fit its aquatic theme:

  • High-value symbols include 3 fish (red, blue, and gold), each paying up to 400 coins for 5 matching combinations.
  • Medium-value symbols include various items found in an Asian garden: lanterns, fans, scrolls, and stone turtles, which pay between 100-200 coins for 5 matches.
  • Low-value symbols are standard playing cards (9-A).
  • A wild symbol, represented by a golden fish, substitutes for all regular symbols to form winning combinations.

Payouts

The Lucky Koi slot offers various payout structures:

  • Regular wins: Payouts range from 1-400 coins depending on the combination of matching symbols.
  • Scatter wins: Players receive scatter payouts when 2+ scatters appear anywhere in view, regardless of paylines.
  • Wild wins: The golden fish wild symbol substitutes for regular symbols to form winning combinations.

Wilds

The wild symbol has two primary functions:

  1. Substitution: Replaces any regular symbol (except the scatter and bonus) to complete a winning combination.
  2. Combination multiplier: If multiple wilds participate in a single win, their values are multiplied by 2x or higher according to the number of involved symbols.

Scatters

Two golden fish scatters appear anywhere on reels 1-4. When these symbols land together with the koi bonus symbol on reel 5:

  • The free spins feature is triggered.
  • All wins during the free games are tripled.

Three scatters trigger a higher multiplier for all wins during the feature, while four or five scatters grant a much more generous starting number of free spins and an increased value for each spin.

Bonus Features

Lucky Koi features two bonus rounds:

  1. Koi Bonus Feature : The player is presented with 3 stones on a grid:
    • Pressing one stone locks that position.
    • A new set of positions opens, allowing the player to press another stone and lock it in place.
    • Once all three stones are locked, they award respective rewards based on their combination (e.g., free spins or cash prize).
  2. Free Spins Feature : The feature starts with an initial number of free games ranging from 10-100, depending on the scatter triggering condition. During this round:
    • All wins are tripled.
    • Wild symbols can appear more frequently.

RTP and Volatility

Lucky Koi has a high RTP (Return to Player) percentage: 95%.

The volatility is medium-high to high. Medium-high payouts occur often, but large jackpots become less frequent as the bet value increases.

Betting Range and Max Win

Players can place bets from $0.25 up to $125 for a single spin on all 50 paylines or select a fixed bet option with 20 lines (minimum bet of $1) when playing with smaller budgets or at lower stakes.

The maximum win in this slot machine game is set at 200x the initial bet amount, which translates to as much as $25,000.