Fishing Slots

Fishing slots

Fishing slots run on one idea. A collector symbol lands during free spins, grabs every cash-carrying fish on the reels, pays the total. Fishin' Frenzy built this mechanic in 2014 for UK betting shops. Big Bass Bonanza polished it in December 2020 and triggered the biggest franchise explosion modern slots have seen. Between the two series (14+ Fishin' Frenzy variants, 32+ Big Bass games) the category moves on a single engine with different paint jobs. Around 300 other fishing titles mostly follow the same template. In any other category, that mechanical uniformity would be a weakness. Here, it created the dominant slot theme of the 2020s.

The reason is simple: the collect mechanic is inherently dramatic. Fish carry random values from 2x to 200x stake. The fisherman collects them all in one sweep. Big Bass added a multiplier trail on top - collect one fisherman at 1x, the next bumps you to 2x, then 3x, eventually 10x with retriggered spins at each stage. That escalation inside a single bonus round, small fish early, then a 10x fisherman hitting a loaded screen, is why streamers turned Big Bass clips into their own content genre. The mechanic was practically designed for highlight reels.

Big Bass vs Fishin' Frenzy

The two franchises split the market like Coke and Pepsi, and the comparison is instructive.

Fishin' Frenzy came first. Reel Time Gaming designed it, Blueprint Gaming published it, and by 2017 it was the top-performing slot across UK licensed retail. The original runs at 96.12% RTP on a 5x3 grid with 10 paylines and medium volatility. Clean, simple, addictive. The franchise grew steadily: Megaways pushed to 15,625 ways and 10,000x max win, The Big Catch introduced a meter that upgrades fish values throughout the bonus (96.38% RTP, 50,000x max), Even Bigger Catch added a Golden Fisherman with a fixed 10x multiplier. For players who prefer a less volatile ride, Fishin' Frenzy: The Big Catch is probably the strongest entry in the entire fishing category.

Big Bass Bonanza took the same concept and dialed up the drama. The original is modest on paper: 5x3 grid, 10 paylines, 2,100x max win. What made it explode was the multiplier trail, the bonus buy option in later entries, and a distribution deal that put it on every major operator in Europe within months. Reel Kingdom, the Cardiff studio behind the series, releases new entries roughly every six weeks. Big Bass Splash (June 2022) added pre-bonus modifier selection and became the most-played Big Bass game, a consistent global top-10 slot. Hold & Spinner Megaways (August 2023) pushed to 147,456 ways and 20,000x max win with an unlimited multiplier in free spins. Splash 1000 (December 2025) holds the current ceiling at 25,000x.

The franchise has strayed into strange territory. Day at the Races swaps fish for horses. Boxing Bonus Round enters the ring. Reel Repeat goes full synthwave. At some point, "Big Bass" became a brand rather than a fishing game, and the latest sequels show it. The newer entries feel like production quota being filled rather than genuine ideas being explored.

Games That Actually Rethink the Mechanic

The interesting fishing slots are the ones that don't copy the Fishin' Frenzy/Big Bass blueprint.

Golden Catch (Big Time Gaming, 2023) uses Megaways cascading reels where fish hide underneath winning symbols. After a cascade clears, fish get revealed, and boats travelling across the top of the reels collect them as they pass. Each successive boat carries a higher multiplier with no cap. 96.49% RTP, 31,430x max win. Plays nothing like Big Bass.

Fish 'n' Nudge (Push Gaming, 2023) introduced net overlay symbols that shift down one position per spin. Fish landing inside a net get collected. A Fisherman inside a net grabs every fish on the entire grid. Free spins carry a growing multiplier that increases with each net nudge and keeps climbing until no nets remain. 96.40% RTP, 10,000x max win. The nudge rhythm creates a completely different tension from the standard collect-and-pray model.

4 Fantastic Fish (4ThePlayer, 2022) asked: what if you dropped the collector entirely? Fish symbols carry cash values that pay when they form standard winning combinations across paylines. No fisherman, no special trigger. The idea has expanded to five games now and represents the clearest departure from the genre's founding mechanic.

Ugliest Catch (Nolimit City, 2023) is a deliberate parody of the whole category. Set in toxic waters full of mutated fish, severed feet, and rusted beer cans, its max win feature is literally called "Kiss my GO-TO-HELL" and pays up to 50,000x at 96.10% RTP. The anti-fishing fishing slot - built for people who are exhausted by the 46th Big Bass sequel but still want the collect mechanic to hit.

The RTP Split

Big Bass Bonanza's default RTP is 96.71%. That's the number in most game descriptions and the number that shows up in marketing. But Pragmatic Play ships the game with multiple configurations: 96.71%, 95.67%, and 94.02%. The casino picks which version to deploy.

The math is not subtle. At 96.71%, the house edge is 3.29%. At 94.02%, it's 5.98% - nearly double. Two players spinning the same game at different casinos are playing fundamentally different products. The information is technically accessible through each game's help menu, buried under paytable data and bonus rules. Most people never open it.

Fishin' Frenzy variants sit in the same boat. Even Bigger Catch drops to 93% RTP in some configurations. Several entries in the franchise offer tiers ranging from 96%+ down to 92%. The fishing category, for all its commercial success, runs in a segment of the market where variable RTP is standard practice. Every fishing slot from Pragmatic Play and Blueprint has an RTP range, not a fixed number. The figures above reflect the highest available tier for each game.

Fish Shooting: Adjacent Genre, Different DNA

Anyone browsing Asian casino platforms will notice "Fishing" as a top-level navigation category alongside Slots and Live Casino. That refers to fish shooting games, multiplayer arcade experiences where players control a cannon and fire at swimming creatures for multiplier payouts. The genre originated around 2005 in Chinese and Taiwanese arcades and generates over $300 million annually.

Fish shooting has no reels, no paylines, no spins. Players aim and fire. Each shot costs money. Different creatures pay multipliers from 2x up to 2,888x for boss monsters. Providers like JILI Games, Spadegaming, and CQ9 Gaming dominate. The genre is crossing into Western regulated markets now (TaDa Gaming secured UKGC certification in 2025 and integrated with Light & Wonder for distribution across 38 jurisdictions), which means slot directories will increasingly need to decide where to put these games.

For taxonomy purposes, fish shooting sits in its own category. Thematically adjacent to fishing slots, mechanically unrelated. The only overlap is the water and the scales.