Release Date 
Developer Fat Fish Festival™ by Wishbone Games is a five-reel slot with 20 paylines and a stated RTP of 96.25%. The game uses a fishing theme built around treasure-chest modifiers, with a bet range from 0.2 to 40. Players can use the demo version to play for free and practice before playing for real money.
The main feature set is based on five chests, each adding a separate enhancement. These include a rising multiplier, boosted prize values, symbol-to-cash upgrades, and respins during the feature. The game also uses a progression system, so feature effects can build as the round develops.
Unlocking the golden chest triggers a two-phase bonus where all modifiers work together. During the collection spins, the multiplier can reach 5x, prize values can rise to 5x, and low-paying symbols may be upgraded to cash. This structure makes Fat Fish Festival slot play for free a useful way to study the bonus rounds and symbol behaviour.
