Our review of GigaBlox Kingdom cuts through the marketing and looks at what matters: how it plays and how it pays. Developed by SpinOn, GigaBlox Kingdom arrives with high volatility and an RTP of 93.65%. It's given an engaging visual treatment and plays out on a 5-reel grid running 20 paylines. If everything lines up, GigaBlox Kingdom can pay up to 5,000x your bet. Dating back to 2025, it remains a regular pick. Here's how it stacks up.
Written by Emma Roberts · Last updated: January 2026
At its core, GigaBlox Kingdom is a game produced by SpinOn, given an engaging visual treatment. It runs on a 5-reel grid running 20 paylines with high variance, and a published RTP of 93.65%.
Dig into the bonuses and GigaBlox Kingdom starts to stand out. Look out for scatter symbols that unlock free spins and extra bonus rounds. The high volatility means patience is rewarded — expect quiet spells broken by bigger hits. All told, it's a solid entry in the SpinOn catalogue.
The RTP of 93.65% is below the industry average of ~96%. This is common for older slots or those with special features. The lower RTP may be offset by unique mechanics or higher maximum win potential.
High volatility means longer gaps between wins, but when wins do land, they can be significantly larger. A bigger bankroll and patience are recommended for this type of slot.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
GigaBlox Kingdom features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
3.0 / 5 — Good
GigaBlox Kingdom by SpinOn is a solid offering that delivers good entertainment value. The 93.65% RTP combined with high volatility creates a well-balanced gaming experience.