Net Gains Slot by Relax Gaming

The headline mechanic here is the choice. When the bonus triggers, you get three completely different free spins variants on a selection screen, and you pick one. Sticky Mystery runs five spins where mystery symbols stay locked across the round, with a meter that adds an extra spin and a fresh mystery every third winning generation. Stacked Wilds runs seven spins on reels two through six, with multiplier wilds carrying 2x to 5x and countdown wilds that vanish from the grid only after they've contributed to a win - otherwise they just keep tumbling down between spins. Coin Collection runs eight spins of cash-collect mechanics: bronze coins worth 1x-40x, silver up to 100x, and gold all the way to 2,500x your bet, swept up by collectors that drop on reel six initially and any reel after a cascade.

Base game runs 4,096 ways across a 6x4 grid with cascading wins. Three mystery symbol variants can land at any time. The standard one reveals one matching symbol after every cascade. The octopus variant goes further - it picks a symbol type, then converts every matching symbol on reels two through six into more mystery symbols. The bomb variant acts normal but detonates after wins are paid, wiping out every non-mystery symbol on the grid.

The cartoon harbour visuals are warm and slightly cheeky - bright orange crabs, green octopus tentacles, weathered wooden reels framed by a tugboat on the left and a fishing trawler on the right. The mascot is a salty sailor riding a great white shark, and the whole thing leans hard into Casinogrounds collab energy. Iron Bank 2 shares the same studio collaboration thread and similar volatility profile, but the gameplay structure is genuinely distinct here because of the three-mode bonus.

An ante bet at 20 percent extra cost raises bonus trigger odds by 82 percent, and the buy-in skips straight to the mode-selection screen at 100x your stake. Win cap sits at 15,000x.