Our review of Happy Fish cuts through the marketing and looks at what matters: how it plays and how it pays. This is a Booongo game, sitting firmly in the medium high variance bracket and paying back a published RTP of 95.47%. Expect a hit frequency around 30%, which sets the rhythm of play. Visually it's wrapped in a fish theme, with the action running on 6 reels and a familiar payline structure. Top wins are capped at 10,000x your stake, a genuinely massive ceiling for the patient. The full verdict is below.
Written by Sarah Mitchell · Last updated: January 2026
This slot, Happy Fish, is the work of Booongo. Presentation-wise it's dressed up with a fish theme, and it leans toward medium high volatility at 95.47% RTP. Under the hood you'll find 6 reels and a familiar payline structure.
Where Happy Fish earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. Its medium high variance balances steady wins with the odd larger payout. All told, it's a solid entry in the Booongo catalogue.
At 95.47%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
Medium-high volatility means wins come less frequently but tend to be larger when they hit. Players should be prepared for dry spells between bigger wins, requiring a moderate bankroll.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Happy Fish features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
3.0 / 5 — Good
Happy Fish by Booongo is a solid offering that delivers good entertainment value. The 95.47% RTP combined with medium high volatility creates a well-balanced gaming experience.