Before you load Book of Sam for real, spend a couple of minutes on how it genuinely performs. Built by Elk Studios, it lands as a game with a very high-variance maths model and 94% RTP. You get a 5-reel grid running 25 paylines, all dressed up with a book of theme. If everything lines up, Book of Sam can pay up to 1,000,000x your bet. It first went live in 2023 and still earns its place today. The full verdict is below.
Written by Michael Torres · Last updated: February 2026
Book of Sam comes to us from Elk Studios. Presentation-wise it's themed around book of, and it leans toward a very high-variance maths model at 94% RTP. Under the hood you'll find a 5-reel grid running 25 paylines.
The mechanics are what make Book of Sam interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. The very high volatility means patience is rewarded — expect quiet spells broken by bigger hits. Overall it's a straightforward title that knows what it is.
The RTP of 94% 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.
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.
Book of Sam 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.
2.5 / 5 — Average
Book of Sam by Elk Studios provides a straightforward slot experience. While it may not break new ground, it offers very high volatility gameplay that will appeal to certain player preferences.