Welcome to our deep dive on Blood Queen — the demo, the maths, and whether it earns a spot in your rotation. Built by Iron Dog Studio, it lands as a slot with a very high-variance maths model and a published RTP of 96.06%. If everything lines up, Blood Queen can pay up to 90,000x your bet. It's given an engaging visual treatment and plays out on 20 paylines across 5 reels. It first went live in 2017 and still earns its place today. The full verdict is below.
Written by Emma Roberts · Last updated: March 2026
Blood Queen is a slot game from Iron Dog Studio, given an engaging visual treatment and powered by 5 reels and 20 paylines. The result is a very high-variance maths model paired with an RTP of 96.06%.
Where Blood Queen earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. With very high variance, this one is aimed at players who can ride out the swings for the top wins. Overall it's a well-rounded slot game that knows what it is.
The RTP of 96.06% is right around the industry average of ~96%. This represents a fair return that's in line with what most modern slots offer.
Very high volatility delivers the most extreme payout profile — long dry spells punctuated by potentially massive wins. Only recommended for experienced players with substantial bankrolls and high risk tolerance.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Blood Queen 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
Blood Queen by Iron Dog Studio is a solid offering that delivers good entertainment value. The 96.06% RTP combined with very high volatility creates a well-balanced gaming experience.