Before you load Necronomicon for real, spend a couple of minutes on how it genuinely performs. ThunderSpin are the studio behind it, tuning the title for a medium low volatility profile, with 95.94% RTP. You get 25 paylines across 5 reels, all dressed up with a halloween and horror theme. If everything lines up, Necronomicon can pay up to 5,000x your bet. But is it actually worth playing? Read on.
Written by Daniel Chen · Last updated: January 2026
At its core, Necronomicon is a game produced by ThunderSpin, dressed up with a halloween and horror theme. It runs on 5 reels and 25 paylines with a medium low-variance maths model, and 95.94% RTP.
Dig into the bonuses and Necronomicon starts to stand out. Look out for scatter symbols that unlock free spins and extra bonus rounds. Thanks to its medium low variance, wins come often enough to suit casual, lower-risk play. On balance, Necronomicon is a dependable option worth a few spins in the demo first.
At 95.94%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
Medium-low volatility offers a good balance of regular wins with occasional larger payouts. Expect frequent hits with modest amounts, suitable for casual players who want low-risk entertainment.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Necronomicon 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
Necronomicon by ThunderSpin is a solid offering that delivers good entertainment value. The 95.94% RTP combined with medium low volatility creates a well-balanced gaming experience.