Underwater Riches

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Rules and Gameplay

Underwater Riches is a video slot game with a fixed number of 50 paylines, ensuring that players have ample opportunities to win with each spin. The gameplay is designed to be straightforward yet engaging, suitable for both beginners and seasoned slot enthusiasts. To start playing, users need to set their coin value and decide on their bet level, with options ranging from 0.5 to 10 dollars per spin. The game features an autoplay option which can perform up to 300 automatic spins, allowing players to sit back and enjoy the visuals and sounds. It’s important to review the game rules and paytable information, accessible via a dedicated button next to the spin control, to understand the winning combinations and game mechanics thoroughly.

Bonus Features

Underwater Riches includes several exciting bonus features that enhance the gaming experience and improve winning chances:

  • Free Spins: Players can activate the Free Spins feature by landing three or more Mermaid Scatter symbols anywhere on the reels. The number of free spins awarded depends on the number of scatters:
    • 3 Scatters: 8 Free Spins
    • 4 Scatters: 10 Free Spins
    • 5 Scatters: 12 Free Spins
  • Wilds: The Merman symbol acts as the wild and can substitute for all other symbols except the scatter to form winning combinations. During the Free Spins, Wilds appear only on reels 2 and 4.
  • Retrigger Feature: The Free Spins feature can be retriggered by landing additional scatters during the bonus rounds, extending the gameplay and increasing the potential for big wins.


The game features a variety of themed symbols that pay out when lined up on one of the 50 paylines. Symbols and their significance include:

  • Low-value symbols: Playing card icons (J, Q, K, A) decorated with aquatic elements like fish and shells.
  • High-value symbols: Themed icons such as the Ship’s Wheel, Diving Helmet, Shell, Trident, Green Sea Monster, and Octopus.
  • Special symbols:
    • Mermaid Scatter: Triggers Free Spins and pays out cash prizes.
    • Merman Wild: Helps create winning combinations by substituting for other symbols.


Payouts in Underwater Riches are made according to the paytable, with symbols paying out as multiples of the line bet. Here’s a detailed table:

Symbol 3x 4x 5x
J 5x 10x 25x
Q 5x 10x 25x
K 5x 10x 50x
A 5x 10x 50x
Ship’s Wheel 5x 20x 75x
Diving Helmet 5x 20x 100x
Shell 5x 25x 100x
Trident 5x 30x 100x
Green Sea Monster 10x 40x 150x
Octopus 10x 50x 200x


Underwater Riches is designed with 50 fixed paylines, meaning that all paylines are active during every spin. This configuration maximizes players’ chances to win by ensuring that all possible combinations are considered for each spin. The first symbol in a winning combination must appear on the first reel, and subsequent symbols must follow consecutively across the reels. Special symbols like the Octopus pay out for fewer matches, adding an extra layer of excitement to the gameplay.

Pros & Cons

Pros Cons
High-quality graphics and engaging underwater theme Not very popular among players, indicating potential underperformance
Includes Free Spins, Scatter, and Wild features to enhance gameplay Medium volatility might not suit players looking for consistent payouts
Accessible to players with minimum bets starting at $0.5 Limited maximum bet of $10 may not appeal to high rollers

Minimum and Maximum Bet

The betting options in Underwater Riches are designed to accommodate a wide range of players. The minimum bet is set at $0.5, making it accessible for those with a limited budget. On the other end, the maximum bet allowed is $10 per spin, which provides an upper limit that might not cater to high rollers but is adequate for casual and moderately serious players.

About Provider

FBM Digital Systems, the provider of Underwater Riches, is known for their innovation in gaming technology. Using advanced HTML5 and JavaScript technologies, FBM creates games that are not only visually appealing but also compatible across various devices including PCs and mobile phones. Their focus on detailed graphics and immersive themes makes their games a popular choice among online casinos.

How To Play

  • Start by setting the coin value. Use the ‘+’ and ‘-‘ buttons to adjust the bet size according to your preference.
  • Choose the number of bet levels you wish to play with, ranging from 1 to 20, to increase the bet incrementally.
  • Once your bet is set, press the ‘Spin’ button to begin playing. Wins are calculated based on the 50 fixed paylines.
  • For a hands-off approach, utilize the Autoplay feature. This allows up to 300 automatic spins, which can be halted at any time by pressing the Autoplay button again.
  • Access the paytable and game rules by clicking on the information button next to the Spin control for detailed instructions and payout details.


Underwater Riches offers a compelling blend of aesthetic appeal and engaging gameplay with its aquatic-themed design and rich feature set. The game’s structured betting system, combined with the potential for free spins and interactive bonuses, makes it a worthy addition to any online casino’s slot game repertoire. Although it may not attract high rollers due to its lower maximum bet, it remains a solid choice for casual players looking to enjoy a visually immersive slot experience with a decent payout structure.