Mega Greatest Catch: Blue Marlin Slot by Evoplay

Fourth entry in Evoplay's Greatest Catch series, and the fishing mechanic here works differently than you'd expect from the name. Wilds don't just substitute - they catch Fish. During free spins, Fish symbols land on the grid carrying random values (2x, 5x, 10x, up to 2,000x the bet level), and when a Wild appears alongside them, it collects every Fish value on screen. That collection mechanic is the entire engine of the bonus round.

Free spins start at 10, 15, or 20 depending on how many Bonus symbols triggered them. But the round evolves as more Wilds accumulate. After the 4th Wild lands across all spins, every future Wild carries an x2 multiplier and you get 10 extra spins. The 8th Wild bumps it to x3 with another 10 spins. Hit 12 Wilds and the multiplier jumps to x10 plus 10 more spins - at that point, a single Wild catching a 2,000x Fish pays 20,000x on its own (though the round caps at 10,000x total). There's a safety net too: if a Wild lands but no Fish are present, the Dynamite feature replaces 3-6 regular symbols with Fish so the Wild still has something to collect.

The base game has two ways to push toward free spins. A Respin triggers when exactly 2 Bonus symbols land - the Bonus reels nudge down one position while everything else respins. And there's a Random Bonus that fills in missing Bonus symbols when you're one short. The Bonus Chance toggle costs 1.5x your bet and doubles the free spin trigger rate, with payouts still calculated on the original stake. Two buy options sit alongside it: standard free spins at 68x or Super Free Spins at 312x, where that 2,000x Fish value appears more frequently.

Visually it's an underwater reef scene - soft blue water, coral and seaweed framing the grid, a fisherman rowing a wooden boat across the surface. Card symbols sit inside translucent bubbles while the high-value symbols are a blue marlin, a tackle box stuffed with gear, sea turtles, and fishing boots. The whole palette stays cool and aquatic, nothing flashy. The series keeps adding layers to what started as a straightforward concept, and the Wild multiplier progression here gives the bonus round a build-up that the earlier entries didn't have.