Yggdrasil · May 30, 2026
Thrill-seekers take note: Book Extreme delivers a 74.1/100 value score with swings that match its 9,673x ceiling.
High variance with big win potential
Book Extreme from Yggdrasil combines other and book-of themes with a competitive 95.85% RTP and High volatility.
The slot draws inspiration from ancient civilizations and mythology.
Key features include Free Spins and Expanding Symbols.
Mängijad valivad Book Extreme'i selle klassikalise "book-of" mehhaanika tõttu, mis pakub kõrge volatiilsusega põnevust ja kuni 10 092-kordseid kordajaid kompaktses 3-rullikulises formaadis. Lihtsad laienevad sümbolid tasuta keerutustes pakuvad potentsiaali märkimisväärseteks kaskaadseteks võitudeks ilma üleliigse keerukuseta.
Boonussümboli laienemise mehhaanika, mis valitakse tasuta keerutuste ajal, katab terveid rullikuid, et maksimeerida väljamakseid 10 võiduliinil selles kompaktses 3-rullikulises paigutuses.
High variance demands patience — budget 400-600x your bet to weather dry spells and reach bonus rounds.
★★★★ 4.8/5 — 200% up to $1,000
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★★★★ 4.5/5 — 100% up to €100
390 slots, avg RTP 95.81%
Theme Browse Ancient slots2257 Ancient slots available
Volatility More High volatility slotsBrowse all High volatility options
| Provider | Yggdrasil |
| RTP | 95.85% |
| Volatility | High |
| Max Win | 9,673× |
| Hit Frequency | 15-20% |
| Math Profile | High Variance |
| Value Score | 74.1/100 |
| Risk Index | 5.9/10 |
| Win Potential | 7.6/10 |
| Bankroll Rating | 2.9/10 |
Book Extreme has an RTP of 95.85%, which is average compared to the industry standard of ~96%. For every $100 wagered, the theoretical return is $95.85 over extended sessions.
Book Extreme has High volatility, meaning wins are less frequent but larger. Suits patient players with sufficient bankroll.
The maximum win potential is 9,673x your total bet.
Book Extreme was developed by Yggdrasil. Explore all Yggdrasil slots in our provider directory.
Book Extreme has a Value Score of 74.1/100, which is good. This score combines RTP, volatility, and max win into a single metric.
Many online casinos offer a demo mode for Book Extreme where you can play with virtual credits before wagering real money.
Book Extreme has a Risk Index of 5.9/10, making it moderate-risk. Relatively gentle on your bankroll.
| Bankroll | — |
| Return | — |
| Risk | — |
Book Extreme earns its 74.1/100 Value Score through a combination of fair returns and reliable gameplay mechanics.