Golden Fish Tank 2 Gigablox Slot by Yggdrasil Gaming

The original Golden Fish Tank was a clean little 5-reel from 2017 with a feature-pick free spins round. This sequel keeps the cartoon aquarium and the feature-picking idea, but rebuilds everything around Yggdrasil's Gigablox engine - the oversized 2x2, 3x3 or 4x4 symbol blocks that drop onto the reels and chunk multiple positions into one icon. The studio guarantees at least one Gigablox per spin, and any symbol qualifies, including the gold sculpted fish Wild, the wooden Treasure Chest, and the scatter that triggers Free Spins.

That Treasure Chest sits only on reel 5 and pays whether or not the rest of the reels do anything. Land one in the base and it coughs up a coin prize between 2x and 500x your bet, or hands over 5, 9 or 16 free spins outright. Inside the bonus the same chest swaps coin prizes for 1, 2, 3 or 5 extra spins on top of whatever you already have. Gigablox versions of the chest still register as a single trigger but pull from a richer prize pool, which is where the bigger coin hits cluster.

Free Spins proper need 5 or more scatters and the round length matches the trigger - five scatters means five spins, six means six, and so on. Before the round starts the game rolls 3 to 7 modifiers that stay live for every spin: Wild Fish converts one fish symbol into wilds across the reel set, Fish Stacks turns one fish into a super-stacked column, Extra Wild sprinkles 1 or 2 extra wilds each spin, Expanded Reels grows the grid to 6x6 with extra paylines, x2 Multiplier doubles every win, and Extra Free Spins adds 1 to 5 more rounds. There's also a gamble step at the trigger screen that lets you risk what you have for additional modifiers, stacking up to 8 in total if you keep winning the flips.

Golden Bet is the ante toggle and it costs an extra 0.20x per spin to guarantee one bonus modifier on top of whatever the game would normally pick. The direct purchase sits at 60x without the ante or 83.3x with it, the latter buying into a 4-to-6 modifier round instead of 3-to-5. Worth knowing: scatter chests and standard fish-symbol Gigablox still gatekeep the bonus pool, so the ante and the buy mostly affect how stacked the modifier list looks rather than the spin count, which still scales with how many scatters land at trigger.

Visually the cabinet sits inside golden seaweed-vine borders on a sandy ocean floor, with kelp, pink coral tubes and lazy bubbles drifting through gradient turquoise water behind the reels. The fish symbols are flat-shaded cartoons - an orange-and-white striped clownfish, a blue-finned tropical, a green tetra, a red puffer - paired with jewel-toned hearts, diamonds, clubs and spades. It's not the most ambitious aquarium in Yggdrasil's catalogue, but the Gigablox layer gives the original's feature-pick formula something to actually do.