Power of Merlin Megaways

Power of Merlin Megaways is one of the highest-ceiling slots in the entire PP catalog: 40,000x maximum win on 117,649 ways to win with an unlimited progressive multiplier in the free-spin round. 96.08% RTP, very high volatility, bonus trigger on 4+ Book scatter symbols. The Lightning Bolt symbol on the top reel transforms a randomly selected base symbol type into wilds — up to multiple times per tumble chain — turning ordinary spins into multi-position wild events without requiring the bonus.

The free-spin bonus awards up to 30 initial spins and includes a gamble mechanic to increase the count before entry. During free spins, each tumble win adds 1x to the progressive multiplier, which is unlimited and never resets between spins in the round. A 30-spin bonus where tumble wins stack the multiplier past 50x by the final spins is the environment where the 40,000x ceiling becomes theoretically achievable — requiring high-density Megaways coverage, loaded multiplier, and premium symbol alignment simultaneously.

The 40,000x ceiling is the highest in the Megaways catalog and four times higher than most competing titles. It is funded partly by the very high volatility and partly by the 96.08% RTP, which sits below the field average. The Lightning Bolt base-game feature adds meaningful activity between bonuses and reduces the sense of dead-air spinning that most very-high-volatility Megaways titles produce. The unlimited multiplier in free spins with up to 30 spins is the mechanical architecture that justifies the headline number.

Verdict
40,000x — the highest Megaways ceiling in the catalog. Unlimited multiplier, 30 spins. The 96.08% RTP is the entry price.