Ancient Treasure Awaits in Giga Zombies GigaBlox by Yggdrasil

While there are a lot of slots about long-forgotten Aztec cities filled to the brim with riches, few dare answer the question of how they evaded discovery until now. Yggdrasil seems to have the answer, which comes in the form of a cursed zombie horde jealously protecting what lies within. Fortunately, our redheaded heroine has the one tool that can defeat any undead: a gun.

The premise behind Giga Zombies GigaBlox is interesting, but does the slot itself have the required staying power? Find out in this in-depth game review.

Giga Zombies GigaBlox Visuals

Yggdrasil always had some of the best visuals around, and they didn’t disappoint with Giga Zombies GigaBlox either. The backdrop shows a run-down temple covered in vines and other plants, obscuring it from view. Skulls rammed atop spears serve as a warning for anyone who dares proceed further, while the inside of the buildings beckons you closer. Our daring explorer sits above the reels with a gun in hand, encouraging us to go further.

Symbol designs are a mix of playing card royals and four zombies. Each one has a distinct colour, so you don’t have to worry about mixing them up. Golden chalices are Wilds, while the words Free Spins are Scatter symbols.

Giga Zombies GigaBlox Gameplay and Features

This Yggdrasil slot is played on a 6×5 grid with a Pay Anywhere system. To win, you need to land eight or more identical symbols anywhere on the playing area. Cascading reels remove all winning symbols, allowing the remaining symbols to drop and new ones to fill any gaps. There’s no limit on the number of possible cascades.

Progress Bar

Each cascade adds one point to the Progress Bar sitting above the reels. Four, six, and nine consecutive wins are required to unlock the corresponding bonuses:

• Four consecutive wins spawn a random GigaBlox symbol into the reels
• Six consecutive wins add up to four Wilds to the reels
• Nine consecutive wins activate the Free Spins feature

Each bonus can be triggered once per wager.

Free Spins

Four or more Scatters in any position or a filled Progress Bar activate the Free Spins feature. You get 8 no-cost spins with a guaranteed random GigaBlox symbol each spin.

The Progress Bar also changes during this feature. Instead of awarding random bonuses, it shows multipliers from 2x to 50x. Each consecutive win increases the multiplier, with the final displayed multiplier being the one to increase your total win for the round. Reaching the end of the Progress Bar adds eight more free spins to the total. You can also extend the feature by landing three or more Scatters.

Random Features

Yggdrasil’s slot has three random features that can trigger on any non-winning spin.

• Zombie Horde turns random regular symbols into high-paying zombies
• Chaos Kingdom transforms random icons to create a guaranteed win
• Lucky Gigablox turns a random 2×2 cluster of regular symbols into a GigaBlox icon

Buy Bonus

Giga Zombies GigaBlox has one Buy Bonus option. Players can spend 100x their wager to activate the Free Spins feature. It’s not mandatory, but it’s a nice option to have for high-rollers who want to jump into the fun part straight away.

Giga Zombies GigaBlox RTP and Payouts

The RTP for this Yggdrasil slot is 96%. This is a high-variance game that lets you win up to 6,260x your stake. We would have appreciated a bigger payout at the end, given the steep volatility, but we still had fun with this game.