Golden Fish Tank Slot Game
Up to 96.8% RTP, free spins with modifiers you pick yourself and an extra pick with Golden Bet. Spin the reels now!
Golden Fish Tank slot is a Yggdrasil game set in a bright home aquarium, featuring medium-high volatility and up to 96.8% RTP. You choose your own modifiers for the free spins round, from sticky wilds to a 2x multiplier, so each bonus feels unique.
Quick Specs
| Provider | Yggdrasil Gaming |
| Release date | February 1, 2016 |
| Reels and rows | 5 reels, 3 rows |
| Paylines | 20 fixed, left to right |
| RTP | Up to 96.8% |
| Volatility | Medium-high |
| Bet range | $0.20 - $100 per spin |
| Golden Bet | +25% stake for one extra feature pick |
| Max win | $100,000 at the top stake |
| Free spins | 6, 8 or 10 with 3, 4 or 5 feature picks |
| Demo | Sequel demo on the Demo page |
| Mobile | Yes, iOS and Android in the browser |

Symbols and Payouts
The paytable is short and clear. Four card suits fill the low end, four cartoon fish make up the premium tier, and two special symbols drive the action. Wins pay for 3, 4 or 5 matching symbols on a line from the leftmost reel.
The top-paying regular symbol is the yellow-and-green striped fish. Landing five on a line pays 12.5x your total stake.
| Hearts, Clubs, Spades, Diamonds | Low-paying symbols |
| Blue fish, pink fish, orange fish | Mid to high-paying symbols |
| Yellow-and-green striped fish | Top regular symbol, 12.5x stake for five |
| Wild | Replaces every regular symbol except Free Spins |
| Free Spins fish | Scatter that starts the bonus round |
Golden Bet
Golden Bet is an optional side setting on the bet panel. It adds 25% to each spin, so a $1.00 spin becomes $1.25. Your reward is an extra feature pick every time free spins begin.
That extra pick is more important than it seems. With five scatters and Golden Bet active, you make six picks from six possible features, playing the round with all modifiers on.
- Cost: a 25% increase to every spin
- Reward: an additional feature pick per bonus round
- RTP effect: the full 96.8% applies only with Golden Bet active
- Best use: for longer sessions where you aim for the bonus round

Free Spins and Feature Picks
Three or more Free Spins fish trigger the bonus. Before spinning, 18 objects float up from the tank bottom. Each hides a unique modifier that lasts the entire round.
| Free Spins symbols | Free spins | Feature picks |
|---|---|---|
| 3 | 6 | 3 |
| 4 | 8 | 4 |
| 5 | 10 | 5 |
The Six Modifiers
Each modifier changes the round differently, and you cannot select the same feature twice.
- Extra Free Spins: adds either 2 or 4 spins to the round
- Multiplier Wins: every free spins win pays 2x
- High Fish Stacks: one fish appears in tall stacks on the reels
- Fish Wild: a selected fish becomes a second wild symbol
- Random Wilds: 1 or 2 wilds land randomly on each spin
- Sticky Wild: one wild stays fixed until the round finishes

Best Feature Combinations
Modifiers combine, and some pairs work exceptionally well together. Fish Wild alongside High Fish Stacks fills entire reels with wilds. Sticky Wild plus Random Wilds creates a grid where most lines connect.
- Multiplier Wins and High Fish Stacks: tall fish symbols land on multiple lines and trigger double payouts
- Sticky Wild and Random Wilds: a permanent wild remains, and new wilds appear on each spin
- Fish Wild and High Fish Stacks: stacked fish symbols can transform into wilds covering full reels
- Extra Free Spins and Multiplier Wins: win additional spins with doubled payout values
The picks are random, so you cannot control the result. You only choose how many picks you receive, based on your scatter symbols and Golden Bet selection.
RTP, Volatility and Max Win
Golden Fish Tank has an RTP of up to 96.8%, which is higher than the 96% slot average. Medium-high volatility delivers small, frequent wins in the base game. The largest payouts almost always come from the free spins feature.
The $100,000 maximum prize requires the highest bet. With smaller stakes, the biggest wins happen when the bonus round combines multipliers and stacked fish.
- Base game: regular small wins from card suit symbols and lower-value fish
- Bonus round: this is where the major prizes are found
- Bankroll: expect quiet periods between bonus triggers
- Session tip: decide your loss limit beforehand and do not exceed it
Theme and Graphics
The game shows a bright aquarium floor with coral, plants and rising bubbles. Cartoon fish with big eyes move between spins. The reels appear in clear water without a border.
During free spins, the tank darkens to a deep purple and wilds appear inside glowing bubbles. A mellow jazz soundtrack and gentle water sounds play.

- Art style: colourful cartoon fish and shiny gem-like card suits
- Free spins scene: darker water, luminous wilds, and floating bubble effects
- Sound: laid-back jazz mixed with underwater audio
- Format: 16:9 widescreen ratio, full-screen on mobile devices
How to Play Golden Fish Tank
The game uses Yggdrasil's standard control panel. Autoplay can run for 100 spins with custom stop conditions. A speed slider adjusts the reel spin pace.
Open Golden Fish Tank with a real-money balance
Adjust your coin value using the plus and minus buttons beneath the reels
Turn Golden Bet on or off with the +5 button
Hit the spin button, or open the Autoplay menu for a set of automated spins
Land 3 or more Free Spins fish to start the bonus round
Select objects from the tank floor to uncover your bonus modifiers
Complete the free spins and receive your total win
Golden Fish Tank on Mobile
The game works in any modern mobile browser without any download. Yggdrasil developed it with HTML5, so it plays identically on iPhone, iPad, and Android.
On a sideways phone, the reels fill the screen and the bet panel sits at the bottom. Every feature, like Golden Bet and the pick screen, functions exactly as on a computer.
- Devices: iPhone, iPad, Android phones and tablets, desktop
- Browsers: Chrome, Safari, Firefox
- Download: not required
- Languages: over 30, including English and Spanish

The Golden Fish Tank Series
The first game expanded into a three-title series. Each follow-up retains the aquarium setting and fish characters but introduces a fresh main mechanic.
| Game | Release | Layout | RTP | Max win | Key mechanic |
|---|---|---|---|---|---|
| Golden Fish Tank | 2016 | 5x3, 20 lines | 96.8% | $100,000 | Feature picks in free spins |
| Golden Fish Tank 2 Gigablox | 2021 | 6 reels, 25-40 lines | 96% | 5,000x | Gigablox giant symbols |
| Golden Fish Tank Party | 2024 | 6x4, 4,096 ways | 94% | 6,000x | Cash and Collect with two bonus modes |
The original still offers the highest RTP among the three. The sequels sacrifice some of that return for bigger maximum wins and more volatile gameplay.
Pros and Cons
This game appeals to players who enjoy a bonus round they can influence.
Strengths
- Up to 96.8% RTP, the highest in the series
- Six modifiers make each bonus round different
- Golden Bet can switch on all six features at once
- Calm, polished aquarium design
- Full mobile play without a download
Downsides
- Full RTP needs Golden Bet, which costs 25% more per spin
- The base game pays mostly small wins
- Free spins can take a long time to arrive
- No bonus buy option
- Lower top prize than the two sequels
FAQ
Golden Fish Tank offers up to 96.8% RTP with Golden Bet active. The return is a bit lower when Golden Bet is off.
Get 3, 4, or 5 Free Spins fish in a single spin. That awards 6, 8, or 10 free spins, plus an equal number of feature picks.
Golden Bet raises your stake by 25% and grants one additional feature pick each bonus round. It benefits players who focus on reaching the free spins.
The original free demo is no longer on the Yggdrasil servers. The site has the free demo of Golden Fish Tank 2 Gigablox, with Golden Bet and the pick screen.
You can win up to $100,000 when betting the maximum amount. The biggest payouts happen during free spins, especially when you land stacked fish symbols with the 2x multiplier.
Yes. You can play it directly in Safari or Chrome on your iPhone or Android device. There's no need to download any app.
Golden Fish Tank 2 Gigablox introduces a sixth reel and giant symbols as big as 4x4. It also has a Treasure Chest bonus. The original version offers a higher RTP and a more straightforward layout.
Only play Golden Fish Tank for entertainment and with money you are comfortable losing. You must be the legal gambling age in your state to play with real money. If gambling is no longer fun, contact the National Problem Gambling Helpline at 1-800-MY-RESET (1-800-697-3738). You can also get free, private help at ncpgambling.org.