Mermaid Fishing on 299bat takes the underwater shooting genre to a completely different level. Enchanted sea creatures, legendary boss battles, magical weapons, and multipliers that can reach 1000x — all live on your phone or browser right now.
Mermaid Fishing is one of the most visually striking games in the 299bat library. It's a multiplayer underwater shooting game set in a mythical ocean world filled with mermaids, sea dragons, giant crabs, enchanted jellyfish, and legendary boss creatures that appear at regular intervals throughout each session.
The core gameplay is straightforward — you aim and fire at sea creatures swimming across the screen. Each creature you kill earns you a payout based on its multiplier value and your current bet per shot. The bigger and rarer the creature, the higher the multiplier. Common fish might pay 2x to 5x your shot value, while legendary bosses like the Sea Dragon Queen and the Abyssal Leviathan can pay anywhere from 300x to 1000x.
What separates Mermaid Fishing from a standard fishing game is the enchanted weapon system. As you play, you unlock magical weapons — the Trident Blast, the Pearl Cannon, the Mermaid's Lure, and the Poseidon Storm — each with unique mechanics that change how you approach different creatures. The Mermaid's Lure, for example, slows down all creatures on screen for a few seconds, giving you time to line up shots on high-value targets. The Poseidon Storm fires a wide-area lightning strike that can hit multiple creatures simultaneously.
At 299bat, Mermaid Fishing runs 24 hours a day with up to 4 players sharing the same ocean. You can compete for individual kills or coordinate with other players to take down boss creatures faster. The game is available on both desktop and mobile, with touch controls that feel natural and responsive on any screen size.
Know your targets before you start shooting. Higher multipliers mean bigger payouts — but harder kills.
Multipliers apply to your bet per shot. All payouts credited instantly to your 299bat wallet.
Each weapon in Mermaid Fishing has a unique mechanic. Knowing when to use each one is what separates good players from great ones.
Fires three simultaneous shots in a spread pattern. Ideal for hitting fast-moving creatures or clearing groups of common fish quickly.
Area SpreadA single high-damage shot that pierces through multiple creatures in a straight line. Best used against slow-moving epic targets and boss creatures.
Piercing ShotSlows all creatures on screen for 4 seconds. No direct damage — but gives you a window to line up precise shots on high-value targets without them escaping.
Crowd ControlUnleashes a lightning strike across the full screen, hitting all visible creatures for moderate damage. Extremely effective during boss spawns when multiple high-value targets are on screen simultaneously.
Full Screen AoE
Getting started on 299bat takes just a few steps. Here's the full process from account to first kill:
Register at 299bat in under two minutes. You'll need a mobile number and a password. Once your account is active, deposit via bKash, Nagad, or Rocket to fund your wallet.
Navigate to Mermaid Fishing from the top menu. The game loads directly in your browser — no app download required, though the 299bat app gives you a smoother experience on mobile.
Choose how much each shot costs — from ৳100 up to ৳5,000 per shot. Your payout for each kill is your bet multiplied by the creature's multiplier value. Higher bets mean bigger wins but faster balance consumption.
Tap or click to fire at creatures. On mobile, touch controls are fully supported. Wins are credited to your 299bat wallet instantly as each creature is killed. Switch weapons using the toolbar at the bottom of the screen.
Boss creatures appear on a timer. When the Sea Dragon Queen or Abyssal Leviathan spawns, all players in the room can fire at it simultaneously. The player who lands the killing shot gets the full multiplier payout — so switch to your Pearl Cannon and aim carefully.
Understanding how hard each target is to kill helps you decide where to spend your shots most efficiently.
The difficulty rating reflects how many shots a creature typically requires to kill at a standard bet level, combined with how unpredictable its movement pattern is.
Common creatures like the Glowing Clownfish die in one or two shots and move in predictable paths. They're low risk and low reward — good for warming up or clearing the screen quickly.
Epic creatures like the Giant Pearl Crab and Abyssal Shark require sustained fire and smart weapon choices. The Pearl Crab is slow but tanky — use the Pearl Cannon for efficient damage. The Abyssal Shark moves fast and erratically — the Trident Blast's spread pattern works better here.
Boss creatures are a different challenge entirely. The Sea Dragon Queen and Abyssal Leviathan have massive HP pools and require coordinated fire from multiple players. When a boss spawns, switch to your highest-damage weapon and focus fire. The payout for the killing shot is worth the investment.
A few habits that separate players who drain their balance fast from those who play long sessions and come out ahead.
It's tempting to fire at everything on screen, but common fish at low multipliers can eat through your balance faster than the payouts cover. Focus your shots on mid-tier and rare creatures unless you're specifically trying to clear the screen for a boss spawn.
Boss creatures in Mermaid Fishing at 299bat spawn on a roughly 8-minute cycle. If you join a room mid-cycle, you can watch the timer and prepare your best weapon before the boss appears. Entering a room just before a boss spawn is one of the most efficient ways to play.
Consider playing at a lower bet per shot during normal rounds to conserve balance, then increasing your bet when a boss spawns. Since boss multipliers are 300x to 1000x, even a single killing shot at a higher bet can return significant value. This approach stretches your session without sacrificing boss round potential.
Mermaid Fishing rooms hold up to 4 players. During boss spawns, all players can fire simultaneously. More combined fire means the boss dies faster, which reduces the total shots needed. Use the in-room chat to signal when you're switching to boss-focus mode — other players usually follow.
The Mermaid's Lure has a cooldown after each use. Don't waste it on common fish. Save it for moments when an Abyssal Shark or Mermaid Guard is on screen — slowing them down for 4 seconds gives you clean shots that you'd otherwise miss due to their erratic movement.
New players at 299bat receive a welcome bonus on their first deposit. Mermaid Fishing counts toward bonus wagering at a full rate, which means you can clear your rollover requirement while genuinely enjoying the game. It's one of the most entertaining ways to work through a bonus on the platform.
Mermaid Fishing at 299bat is the kind of game that's easy to pick up but genuinely rewarding to get good at. The visual design is stunning, the creature variety keeps things interesting, and the boss battles create moments of real excitement that you don't get from standard slot games.
Players from all across Bangladesh — Dhaka, Chittagong, Sylhet, Khulna, Rajshahi — are already logging in daily for their Mermaid Fishing sessions. The rooms are active around the clock, boss spawns happen regularly, and every session brings a fresh chance to land that 1000x Leviathan kill.
Register your free 299bat account today, claim your welcome bonus, and jump into the ocean. Your first boss spawn could be just minutes away.
Common questions from 299bat players about Mermaid Fishing.