If you're trying to work out whether Book of Oktoberfest is worth your time, this hands-on review breaks it down. Spinberry are the developer behind it, tuning the slot for a medium high volatility profile, with a published RTP of 93.19%. The maximum win sits at 5,000x, so there's serious upside on the table. Originally released in 2024, it has aged well. You get 5 reels and 10 paylines, all themed around oktoberfest. So does it deliver? Let's get into it.
Written by Daniel Chen · Last updated: March 2026
Book of Oktoberfest is a title from Spinberry, leaning into an oktoberfest aesthetic and powered by a 5-reel grid running 10 paylines. The result is medium high variance paired with a published RTP of 93.19%.
Dig into the bonuses and Book of Oktoberfest starts to stand out. Look out for scatter symbols that unlock free spins and extra bonus rounds. Its medium high variance balances steady wins with the odd larger payout. All told, it's a solid entry in the Spinberry catalogue.
The RTP of 93.19% 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.
Medium-high volatility means wins come less frequently but tend to be larger when they hit. Players should be prepared for dry spells between bigger wins, requiring a moderate bankroll.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Book of Oktoberfest 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
Book of Oktoberfest by Spinberry is a solid offering that delivers good entertainment value. The 93.19% RTP combined with medium high volatility creates a well-balanced gaming experience.