Thinking about giving Diamond Mine Megaways a spin? We tested it thoroughly so you know what to expect. This is a Blueprint Gaming slot, sitting firmly in the very high volatility bracket and paying back an RTP of 95.75%. It first went live in 2018 and still earns its place today. The maximum win sits at 250,000x, so there's serious upside on the table. It's dressed up with a diamond and gem theme and plays out on a Megaways grid where the reel heights shift on every spin. Here's how it stacks up.
Written by Sophie Williams · Last updated: January 2026
Diamond Mine Megaways is a title from Blueprint Gaming, built around a diamond and gem theme and powered by a Megaways layout with up to 117,649 ways to win. The result is a very high-variance maths model paired with an RTP of 95.75%.
Where Diamond Mine Megaways earns its keep is the feature set. The Megaways engine keeps the way-count shifting spin to spin, which keeps the base game lively. The very high volatility means patience is rewarded — expect quiet spells broken by bigger hits. On balance, Diamond Mine Megaways is a dependable option worth a few spins in the demo first.
At 95.75%, 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.
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.
Diamond Mine Megaways 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.
This slot uses the popular Megaways engine, which means the number of symbols on each reel changes with every spin. This creates up to 117,649 ways to win on each spin, making every round unpredictable and exciting. The dynamic reel layout ensures no two spins feel the same.
3.1 / 5 — Good
Diamond Mine Megaways by Blueprint Gaming is a solid offering that delivers good entertainment value. The 95.75% RTP combined with very high volatility creates a well-balanced gaming experience.