Ocean's Treasures Slot by Zillion Games

Eight treasure chests on the ocean floor, a red octopus looming overhead, and one rule: keep picking until you grab a chest with a fish inside, at which point the octopus gets angry and the round ends. That's the Octopus Treasure bonus - three octopus symbols anywhere on the reels open the pick-and-click screen where each chest hides either a coin prize or the terminator fish. No multiplier progression, no levels, no respins within the bonus. Just raw luck on how many chests you clear before hitting the dud. With eight chests total and only one needed to end it, the variance inside the bonus itself swings between a single pick and a near-clean sweep.

Free spins run as a separate trigger through the turtle scatter - three turtles anywhere start the round. Both the pick bonus and free spins are available through the buy button at 32x bet each, which is cheap for Zillion Games (their later titles charge 100x for similar access). At 32x for the octopus round or 32x for free spins, the entry cost sits low enough to sample both without burning through balance. Wins during free spins play out on the same 25 paylines with no added multipliers or modified mechanics - it's the base game with guaranteed trigger, nothing layered on top.

Coral reefs in teal and turquoise fill the background, with the octopus's tentacles curling around both edges of the grid in a deep underwater blue. Every paying symbol sits inside a circular bubble frame - lionfish, clownfish, pufferfish, starfish, a pearl in its shell, a nautilus. Card values from 9 through Ace are rendered in chunky 3D lettering with shell and starfish decorations pressed into the characters. Bubbles drift upward across the reels constantly. Early 2021 Zillion, built before the provider started stacking features - one pick bonus, one free spins trigger, and a jellyfish wild that substitutes for everything.