777 Volt GigaBlox

(Yggdrasil Gaming) Slot Review


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777 Volt GigaBlox: Slot Overview

It's been kicking around for a while now, so there may be gamblers out there in gamble land unaware that the popular GigaBlox mechanic was invented by none other than software provider Yggdrasil Gaming. The studio shares the GigaBlox mechanic with its pals, but now and then, it feels the urge to go make one itself. The result of one of these impulses is 777 Volt GigaBlox, an 'electrifying world' players are invited to step into, and a redo of 2021's Golden Fish Tank 2 GigaBlox.

Say bye-bye to fish and hello to flashing lights and loads of 7s. 777 Volt GigaBlox is a funky, Vegasy slot, jamming a trancy soundtrack that brought to mind the Bronski Beat tune 'Smalltown Boy'. The overall audiovisual effect was strangely alluring, as 777 Volt GigaBlox, with beckoning finger, attempts to seduce players into its classic yet modern, energetic, rhythmical environment.

777 Volt GigaBlox slot
777 Volt GigaBlox slot - base game

Surrounded on three sides by theatre marquee lighting, 777 Volt GigaBlox's action takes place on a game grid that is 6 reels, 4 rows by default where there are 25 paylines, but can reach 6 rows high in the bonus round with 40 paylines. 777 Volt GigaBlox drops the highest RTP value down to 94% compared to Golden Fish Tank 2's 96% value, and volatility has remained at the same medium-high setting. The stake range is 25 c to $/€100, with a Golden Bet and two feature buys on-site.

777 Volt GigaBlox's paytable hierarchy lists J-A card ranks as lows, worth 2 times the bet for 6, then sevens, double seven, triple sevens and Volt triple sevens as the highs, paying 6 to 12 times the bet for 6-of-a-kind. Wild versions of the high pays are possible from free spins upgrades; all are worth 20x the bet for 6 OAK in this form. Regular wilds are also worth up to 20x, and all wild types are able to substitute for regular symbols.

777 Volt GigaBlox: Slot Features

777 Volt GigaBlox slot
777 Volt GigaBlox slot - feature picks

On the feature front, 777 Volt GigaBlox has GigaBlox symbols, free spins with feature picks, a Diamond feature, the Golden Bet, and bonus buys.


At least 2 adjacent reels will connect to form up to 4x4 sized GigaBlox symbols on each spin. GigaBlox can even reach up to 6x6 in size during free spins when the reels extend. Any symbol, including wilds, the Diamond, and free spins scatter, can be a GigaBlox. These symbols break down to their 1x1 sized parts for evaluating wins.

Free Spins

Landing 5 or more scatter symbols in the base game triggers free spins - each scatter symbol awards 1 free spin. Players also win 3-7 Extra Feature picks for the entire free spins session. Feature picks take place before free spins begin and award:

  • Wild High - one of the high pay symbols is turned into a wild.
  • Multiplier x2 - applied to all wins.
  • Expanded Reels - adds 2 rows to the reels, allowing 6x6 GigaBlox to land.
  • Extra Wild - 1 to 2 wilds are added to the screen on each free spin.
  • High Stack - one high pay symbol becomes stacked on the reels.
  • Extra Free Spins - players get 1 to 5 extra free spins.

Before free spins start, players can gamble for more features, up to 8. Finding a key in 1 of 3 boxes by clicking on it is a winning choice. Choosing incorrectly deletes the entire free spins session.

The Diamond Feature

The Diamond symbol lands only on the rightmost reel. It awards a prize, even if only partially visible. In the base game, it can award 2-500x the bet, or 5, 9, or 16 free spins. In free spins, the rewards may be 2-500x the bet or 1, 2, 3 or 5 extra free spins. The bigger the Diamond, the better the average prize.

Golden Bet & Bonus Buy

Switching on the Golden Bet awards +1 feature pick when entering free spins. Having the Golden Bet on adds 20% to the bet. Players may buy 5-16 free spins with 3 to 7 features for 60x the bet, or 5-16 free spins with 4 to 8 features for 100x the bet.

777 Volt GigaBlox slot
777 Volt GigaBlox slot - free spins

777 Volt GigaBlox: Slot Verdict

It's interesting, once upon a time, wasn't Yggdrasil Gaming one of the innovators to look out for within the casino game design space, releasing slots that made ripples far and wide? Maybe that's looking to the past through rose-tinted glasses, maybe not. Either way, the last few Yggdrasil game reviews have been lacklustre - Vikings Go To Egypt Wild Fight, Monkeys Go Bananas MultiMax, and Gold Frontier Jackpots FastPot5, okay looks, okay gameplay, just okay. A general drop in RTP hasn't exactly sweetened the deal. The studio is here to do business rather than make friends, fair enough, but the focus seems to have shifted at Yggdrasil of late. Just thinking out loud, and who knows, the studio might shock in the future with a batch of mind-bending slot drops.

This brings us to 777 Volt GigaBlox, which is a playably energetic game. The studio is prevented from bagging masses of cool points since it has fallen back on making what is basically a classic slot clone. A quick cross-check revealed 777 Volt GigaBlox's mostly reskin status, which explained the phantom memories induced at the start of the review. Everything runs pretty much the same as before. Same features, same gameplay, same pros and cons. The only major differences are the lower top return and the jazzier skin. As before, feature picks are a see-saw between getting the more preferable upgrades, such as expanded reels or the multiplier, and having masses of extra spins dumped on you.

777 Volt GigaBlox also retains a 5,000 times the stake win cap, lest the voltage get too high. It might not for a lot of players, but gamblers who liked the cut of Golden Fish Tank 2's jib might get a thrill out of the repeat performance in a more traditionally presented, though lively, slot.


777 Volt GigaBlox delivers energetic gameplay but falls short of innovation due to its reskin status.

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