Slots Like 4 Fantastic Fish Gigablox: Big Symbols and a Hungry Shark
4 Fantastic Fish Gigablox sends 4ThePlayer’s fisherman back out to sea, playing out on a 6 reel, 6 row board with 46,656 ways to win beneath a bright, sunlit ocean scene. Fish symbols worth 0.1x to 50x stake act as Cash Prizes, and the game’s Gigablox mechanic can turn any of them into a giant 2×2, 3×3, 4×4 or 5×5 block, with landing one on reel 6 specifically unlocking the Big Game Fish feature worth up to 10,000x at its largest Ultra tier. A random Giant Squid Bonus can also fire during the base game, revealing hidden wins, summoning fresh Gigablox symbols, or reshuffling the board entirely. Landing 3 or more scatters opens the Fishing Respins Bonus, awarding 3 respins that reset every time a new scatter lands, and once inside, a Shark Feature can eat entire reels of fish symbols, combining and doubling their values while unlocking extra positions for the next respin. Two feature buy options are available, 80x stake for a guaranteed Fishing Respins trigger or 150x for a single spin with a 5×5 Gigablox guaranteed. RTP tops out at 96%, volatility is rated high, and the maximum win reaches 12,000 times the stake.
Where to Play
18+ only. T&Cs apply. Please gamble responsibly.
Slots Like 4 Fantastic Fish Gigablox
4ThePlayer’s own catalogue of X-symbol and prize-meter slots sits alongside a run of fishing and collect-mechanic titles from other studios that tend to draw the same crowd.
- 10000x Gold 2
A casino-glitz 4ThePlayer release built around X symbols that fuse together for a stacking multiplier, plus five growing Fortune Prizes running alongside the base game. A different kind of layered feature set from the same studio. - 7×7 Zeus
A different 4ThePlayer release entirely, swapping the ocean setting for Greek mythology and building its multiplier through a grid-based system rather than Gigablox symbols. - 1 Left Alive
A 4ThePlayer title set in a zombie-infested wasteland rather than a fishing boat, with its own take on gathering value across a round before cashing it in. - 10000 BC 2 Doublemax
A caveman and dinosaur setting from the same studio, using a comparable merging-symbol multiplier idea to the one 4ThePlayer built into their earlier Gold titles. - Big Bass Bonanza
The Reel Kingdom original that popularised the fisherman and cash fish idea, running a simpler collect mechanic without the Gigablox scaling seen here. A useful comparison point for how differently two studios handle the same fishing setting. - Fishin Frenzy
The Blueprint Gaming original that arguably kicked off the whole fishing slot genre, running a single fisherman wild free spins collect rather than the multi-system stack found in 4 Fantastic Fish Gigablox. - Gold Blitz
A glowing dollar collect slot from Fortune Factory Studios, sharing the cash-symbol collecting instinct of 4 Fantastic Fish Gigablox in a casino jackpot setting rather than an ocean one. - Fishin Christmas Pots of Gold
A Gameburger Studios release combining a fishing collect mechanic with a festive theme, another example of how many different studios keep returning to the fisherman and cash fish format. - 5 Doggy Dollars
A back garden setting from the same studio, trading Gigablox giant symbols for a sticky Cash Bone respin system and a separate Pick-A-Win prize round.
How the Game Works
Reviewed by Paul StonePublished: July 2026
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Card royals from 10 through Ace fill the lower paytable, while a tackle box, fishing rod, seagull and fisherman carry the mid tier payouts worth up to 2.5x stake. Fish symbols function as Cash Prizes worth 0.1x to 50x stake, with values increasing the further right they land. A fishing boat wild substitutes for everything except the scatter. The board runs 6 reels by 6 rows for up to 46,656 ways to win, and a Gigablox symbol can appear anywhere on the grid as a giant 2×2, 3×3, 4×4 or 5×5 block, with each position inside it counting as an individual symbol toward a win.
Reel 6 carries an extra layer on top of the standard Gigablox mechanic: landing a Gigablox symbol there triggers the Big Game Fish feature, paying out according to size, from a Big 2×2 worth up to 100x through Super, Mega and finally an Ultra 5×5 worth up to 10,000x stake. A separate, randomly triggered Giant Squid Bonus can also appear during the base game in one of four forms: a Squid Reveal that guarantees a win, a Giga Summon that calls in a fresh Gigablox symbol, a Squid Swap that repositions symbols, or a Squid Shuffle that reorders entire reels.
Fishing Respins and the Shark Feature
Landing 3 or more scatter symbols triggers the Fishing Respins Bonus, awarding 3 respins with the triggering reels locked in place. Landing further scatters during the round unlocks additional reels and resets the respin count back to 3. Once inside, a Shark Feature can activate and eat an entire reel of fish symbols, combining their values and multiplying the total by 2x while unlocking new top or bottom positions that carry Cash Multiplier zones for the rest of the round.
Two feature buy options let players skip the wait for a natural trigger: 80x stake buys straight entry into the Fishing Respins Bonus, while 150x guarantees a single spin with the Giga Summon feature active, forcing a 5×5 Gigablox symbol onto the board.
Pros and Cons
Pros
- A 12,000x ceiling backed by a genuinely layered feature stack rather than one repeated mechanic
- The Big Game Fish feature on reel 6 gives every spin a specific reason to watch closely
- The Shark Feature adds real drama to the Fishing Respins round by combining and doubling reel values
- Two feature buy options give flexibility between a guaranteed respins trigger and a guaranteed big symbol
- 96% RTP sits right at the UK market average
Cons
- With Gigablox, Big Game Fish, the Giant Squid Bonus and the Shark Feature all layered together, the rules take a while to fully click
- The sheer number of interacting systems can make it hard to know which feature actually paid out a win
- Lower RTP settings of 94%, 90.5% and 86% are also in circulation at some operators
- There is no way to influence which of the four Giant Squid Bonus outcomes actually fires when it triggers
Game Screenshot
Demo Play
Given how many separate systems are stacked into 4 Fantastic Fish Gigablox, a proper run through the free demo pays off here more than most, letting Gigablox, Big Game Fish, the Giant Squid Bonus and the Shark Feature each show themselves at least once without any money on the line. Browse our free demo slots here.
Expert Take
Reviewers have generally praised how much depth 4ThePlayer packed into a single release here, with the Big Game Fish feature on reel 6 singled out as a smart way to give the Gigablox mechanic an extra purpose beyond just paying out bigger wins. The sheer number of interacting systems draws more mixed reactions, with some finding the rules take real effort to fully absorb before the game clicks into place.
About the Developer
4 Fantastic Fish Gigablox comes from 4ThePlayer, released through Yggdrasil’s distribution network in February 2024. This entry pairs the studio’s usual habit of layering several feature systems into one release with Yggdrasil’s own Gigablox format, resulting in one of the more feature-dense fishing slots currently on the market. See more on our 4ThePlayer slots page.
4 Fantastic Fish Gigablox Key Stats
4 Fantastic Fish Gigablox slot information last reviewed: July 2026
| 4 Fantastic Fish Gigablox Slot Info | |
|---|---|
| Name: | 4 Fantastic Fish Gigablox |
| Provider: | 4ThePlayer |
| Developer Rank: | A high volatility fishing release from the studio, built on Yggdrasil’s Gigablox format |
| RTP: | 96% (also available at 94%, 90.5% and 86%) |
| RTP Category: | Average |
| RTP Rank: | Around the UK market average at its top setting |
| Feature Description: | Gigablox giant symbols up to 5×5, a reel-6 exclusive Big Game Fish feature worth up to 10,000x, a random Giant Squid Bonus, Fishing Respins with a reel-eating Shark Feature, and two feature buy options. |
| Feature Categories: | Fishing Themed, High Volatility, Multiple Bonus Features |
| Reels: | 6 |
| Rows: | 6 |
| Paylines: | 46,656 ways to win |
| Volatility: | High |
| Volatility Rank: | Among the higher-rated titles on the site |
| Min Bet: | £0.10 |
| Max Bet: | £80 |
| Max Win: | 12,000x stake |
| Release Date: | February 2024 |
| Slotslike Rank: | 712 out of 4,200+ games (View Top 100) |
Slots with the Same Features
A couple of other directions worth exploring beyond the fishing theme itself.
More 4ThePlayer Slots
A closer look at two more of the studio releases, each built around its own particular mix of features.
Fishing Themed Slots
Other titles built around the same fisherman and cash fish format.
Frequently Asked Questions
How does the Gigablox mechanic work in 4 Fantastic Fish Gigablox?
Gigablox symbols can appear anywhere on the grid as giant 2×2, 3×3, 4×4 or 5×5 blocks, with each position inside counting as an individual symbol toward a win.
What is the Big Game Fish feature?
Landing a Gigablox symbol on reel 6 specifically triggers this feature, paying out from a Big 2×2 worth up to 100x through to an Ultra 5×5 worth up to 10,000x stake.
What does the Giant Squid Bonus do?
It randomly triggers during the base game in one of four forms: a guaranteed win reveal, summoning a fresh Gigablox symbol, repositioning symbols, or reshuffling reels.
How do you trigger the Fishing Respins Bonus?
Landing 3 or more scatter symbols awards 3 respins with the triggering reels locked, and further scatters unlock new reels and reset the respin count.
What is the Shark Feature?
Active during Fishing Respins, it can eat an entire reel of fish symbols, combining their values and doubling the total while unlocking extra positions.
What is the maximum win on 4 Fantastic Fish Gigablox?
The game can pay out up to 12,000 times the stake.
Who makes 4 Fantastic Fish Gigablox?
4ThePlayer released the game through Yggdrasil’s distribution network in February 2024.
Our Verdict on 4 Fantastic Fish Gigablox
4 Fantastic Fish Gigablox packs a genuinely dense feature stack into its fishing theme, and the reel-6 exclusive Big Game Fish feature gives the Gigablox mechanic real extra purpose rather than just scaling up existing wins. The Giant Squid Bonus and Shark Feature add further layers on top, and while that combination takes real effort to fully absorb, a 12,000x ceiling and an RTP that sits at the UK market average make this a rewarding pick for players willing to learn the full rule set.
SlotsLike rating: 7/10