| Provider | InOut Games |
| Game Type | Arcade |
| RTP | 98% |
| Volatility | High Volatility |
| Grid | — |
| Min Bet | €0.10 |
| Max Bet | €100 |
| Max Win | Varies |
| Provably Fair | Yes |
| Mobile Friendly | Yes |
Fish Boom is an arcade-style fishing game from InOut Games. You target fish swimming across the screen, and each catch awards a multiplied payout based on the fish type. Bigger, rarer fish pay more. It is fast-paced, colorful, and plays more like an arcade shooter than a traditional casino game.

How Fish Boom Works
- Set your bet amount
- Fish swim across the screen at various speeds
- Click or tap on fish to catch them
- Each fish has a different multiplier value
Small common fish give modest payouts. Larger, rarer fish offer bigger multipliers but are harder to catch. The underwater visuals are vibrant with smooth animations.

Fish Values and Strategy
Different fish species have different payout multipliers. The key is balancing your shots between easy small fish and risky big targets. Spraying shots at everything wastes your bet, while waiting for only the biggest fish means long dry spells.
A balanced approach works best — steady income from common fish with occasional shots at the big prizes.

Provably Fair and Mobile
Fish Boom uses InOut’s provably fair technology. Each catch outcome is predetermined by a server seed that you can verify after the round. The game is fully optimized for mobile browsers — just tap to play, no download needed.
FAQ
How does Fish Boom work?
You target fish swimming on screen. Each fish you catch awards a payout based on its type. Bigger and rarer fish pay higher multipliers.
What is the best strategy?
Balance your shots between common fish for steady returns and rare big fish for jackpot potential. Do not waste all your bets chasing only the biggest targets.
Can I play Fish Boom for free?
Yes, the free demo at the top of this page uses virtual credits with the same mechanics and fish values as real money play.
Is Fish Boom provably fair?
Yes, each catch result is determined by a cryptographic server seed before you play. You can verify outcomes after each round.