4 Fantastic Fish Amazon Adventure

4ThePlayer sends its long-running fish franchise to South America for 4 Fantastic Fish Amazon Adventure, released in May 2025 on a 6x4 grid with 4,096 ways to win. The camera sits close to the waterline, with riverbank trees and hills visible above and weeds drifting below — a quieter palette than some of the series' earlier Viking, Egyptian and Gigablox outings, though the fishing-for-cash format underneath stays familiar.

Matching symbols connect on adjacent reels starting from the left. Ten through Ace card icons form the low-paying end at 1.5x to 2.5x the stake for six of a kind, while hats, buckets, frogs, birds and a fisherman sit above them as premiums worth 3x to 10x for a six-symbol line. A boat wild covers every regular symbol but can never appear on the first and second reels together.

Piranha symbols carry the core loop, showing cash values that grow larger moving from left to right across the board; the rightmost column can also land Big Game Prizes fixed at 50x, 200x, 1,000x or 10,000x the stake. A winning way of Piranhas pays out everything shown, Big Game Prizes included. Two modifiers work on these symbols during the base game — one that can build or boost a Piranha win outright, and a second, a giant anaconda, that swaps symbols around the board to the same effect.

Three or more Respins scatters open the Amazon Respins feature. Whichever columns carried the triggering scatters unlock for the round, while every other column stays shut, and any Piranha that lands on an unlocked column locks in place for good. Three respins start the round and reset each time a fresh Piranha locks; a shut column opens permanently if a scatter lands on it later. The same two modifiers from the base game can also lock a Piranha sideways onto an open column or shift one across from a closed column. Once an unlocked column fills entirely with locked Piranhas, a Gator collects everything on it, doubles the combined total and clears space for more symbols — except the 10,000x Ultra prize, which it leaves untouched. Respins running out ends the feature.

A second trigger, three or more Pick-A-Win scatters, opens the Temple bonus: players click stone pyramids on screen to reveal cash prizes, with the number of picks matching the number of scatters that landed. Amazon Respins, the Temple bonus and the base-game Piranha modifier can each be bought directly for 75x, 150x and 30x the stake respectively.

4 Fantastic Fish Amazon Adventure carries a maximum RTP of 94%, with an alternate 90.5% configuration also available, high volatility, and a 23% hit frequency. Stakes span 0.20 to 80 per spin, with a theoretical ceiling of 11,340x the bet.