Octo's Crab Shack Slot by Relax Gaming

The grid sits underwater in front of a wooden diner with circular porthole windows and a curving coral roof painted pink and purple. Octo himself is a chef-hatted purple octopus on the high pays, joined by a redheaded mermaid, a turtle, a green fish-warrior and various pastel seashells on the lows. Coral towers and waving seaweed frame both sides, with sky-blue water filtering through up top. The whole thing is family-friendly cartoon, almost children's-book in tone.

Wins form by landing 8 or more matching symbols anywhere on the 6x5 grid - standard scatter pays mechanic with cascading replacements after each hit. The signature feature lives in the vertical strip on the right edge. Each symbol type has its own multiplier counter, displayed as a stack of x1 pegs (one per symbol). Whenever a symbol contributes to a winning combination, its personal multiplier doubles. So the chef octopus might start at x1 and pay 4x your bet flat, but after a few wins he's sitting at x16, and the next time eight chef-octopus symbols cascade together it's 64x your bet from the same paytable hit.

The multipliers cap at x64 per symbol and persist throughout a spin chain - and crucially, they carry over into the Octospins Bonus. Three Scatters award 8 free spins, with extra Scatters extending the round (+1 spin per additional Scatter, retriggers in-bonus also +1). Multipliers built up in the base game keep their values when the bonus starts, which means a hot session feeds directly into a hotter bonus. There's a Random Multiplier Upgrade modifier that can also kick in at the start of any spin, bumping a random subset of symbol multipliers up a tier.

Buy Bonus runs at 102x bet for 94.27% RTP, with a random multiplier seed assigned at entry. The cap is 10,000x. Worth knowing: this batch served the 94% RTP variant - some operators run a 96% build instead, which is the obviously preferable one if you have the choice. The art is genuinely charming and the multiplier system is the strongest version of doubling-per-win the studio has shipped to date.