Book of Cats Megaways launched on November 3, 2022 and is the Megaways sequel to the original Book of Cats (July 2020). BGaming took the signature Book of Ra mechanic (an expanding symbol chosen ahead of time) and applied it to the 117,649-ways Megaways format. The result: a slot that's functionally superior on format but marginally lower on RTP (96.95% vs 96.99% for the original).
This is a complete Book of Cats Megaways review: what changes versus the original, how the cumulative x10 wild multipliers work in Free Spins, the value of the 2-tier bonus buy (100x standard / 150x guaranteed premium), and where to play in 2026.
TL;DR — Book of Cats Megaways in 4 points
- BGaming slot, November 2022, the Megaways sequel to the original Book of Cats. Dynamic 6x7 grid with up to 117,649 ways. RTP 96.95%.
- High volatility, max win 10,000x — 1,798x higher than the classic Book of Cats (8,202x).
- Signature mechanics: 12 Free Spins (3+ scatters) with a symbol chosen ahead of time that expands across full reels. Megaways innovation: wilds carrying cumulative x2/x3/x5/x10 multipliers.
- 2-tier bonus buy: 100x standard (random expanding symbol) or 150x premium (guaranteed premium symbol). Chance x2 feature (+50% stake). Min bet €0.10.
Why release a Megaways version 2 years after the original?
The original Book of Cats (July 2020) had two limitations for 2022:
- 5x3 / 10 payline format = a theoretical potential capped at 8,202x
- No bonus buy = natural entry only
BGaming addressed both directly:
- 117,649-ways Megaways opens the max win potential up to 10,000x
- Cumulative x2/x3/x5/x10 wild multipliers = a major new mechanic for Free Spins
- 100x or 150x premium bonus buy = modern flexibility
- Chance x2 feature = an accessible bonus boost
Cumulative wild multipliers — the innovation
This is the feature that sets the Megaways version apart from the original:
| Wild | Multiplier | Effect |
|---|---|---|
| Standard wild | x2 | On the wins it contributes to |
| Standard wild | x3 | Same |
| Standard wild | x5 | Same |
| Standard wild | x10 | Same |
The key innovation: if multiple wilds contribute to the same win, their multipliers add together (not multiply). Example: 2 wilds at x5 plus 1 wild at x10 on the same combo equals x20 on that win.
Combined with the 117,649 ways and cascading reels, this is the main path to the 10,000x max win.
Expanding symbol chosen ahead of time — the Book of Ra mechanic
This mechanic remains identical to the original:
- You trigger Free Spins via 3+ scatters (the book combines wild + scatter)
- Before the 12 spins begin, a symbol is randomly selected as the expanding symbol
- During Free Spins, whenever that symbol lands on a reel, it expands across the entire reel
- It pays as though it occupied every position
Difference from the original: Book of Cats Megaways runs 12 spins (vs 10 in the original) — slightly more generous.
Bonus buy — 2 tiers (an innovation)
It's rare for a Book-format slot to offer 2 bonus buy tiers:
| Tier | Cost | Guarantee |
|---|---|---|
| Standard | 100x stake | Free Spins triggered, expanding symbol is random (could be low or premium) |
| Premium | 150x stake | Free Spins triggered, expanding symbol is guaranteed PREMIUM |
⚠️ Premium costs 50% more to lock in a high-value expanding symbol. Mathematically EV-positive over the long run if you can absorb the variance, but the 100x Standard remains the smarter ratio for most players.
Official RTP — 96.95%
| Criterion | Value |
|---|---|
| Base RTP | 96.95% |
| Volatility | High |
| Max win | 10,000x |
| Standard bonus buy | 100x stake |
| Premium bonus buy | 150x stake |
⚠️ Always verify via the in-game "i" button. Marginally lower than the original Book of Cats (96.99%) but offset by the Megaways format plus cumulative multipliers.
Strategies by budget
Small budget (< €200)
The €0.10 min bet makes this slot accessible. With €200 you can get 2,000 spins or 20 buys at 100x with €0.10 bets (€10/buy). Activate Chance x2 (+50% stake) to double your odds of a natural Free Spins trigger.
Medium budget (€500-€1,000)
Mix it up: 70% buys at 100x with €0.30 bets (€30/buy) plus 30% buys at 150x premium with €0.30 bets (€45/buy). The premium buy guarantees a high-value expanding symbol — useful for maximizing EV.
Large budget (€2,000+)
150x premium buys at €1 (€150/buy) to chase the 10,000x with a guaranteed premium symbol. A minimum of 10-15 buys is recommended to absorb the high Megaways variance. Cumulative x10 multipliers are the main path.
Book of Cats Megaways vs other top BGaming Megaways — comparison
| Criterion | Book of Cats Megaways | Aztec Magic Megaways | Lady Wolf Moon Megaways |
|---|---|---|---|
| Release | Nov 2022 | Jan 2021 | Jul 2022 |
| RTP | 96.95% 🏆 | 96.69% | 96.84% |
| Max win | 10,000x 🏆 | 12,960x | 6,000x |
| Ways | 117,649 | 117,649 | 200,704 🏆 |
| FS multipliers | Cumulative x2/x3/x5/x10 | Sticky x1/x2/x3 | x2 wilds + x25 bonus |
| Bonus buy | 100x / 150x | 100x | Available |
Verdict: Book of Cats Megaways for cumulative x10 multipliers, 2 buy tiers, and a top-tier RTP. Aztec Magic Megaways for a higher max win. Lady Wolf Moon Megaways for 200,704 ways.
Top 5 casinos to play Book of Cats Megaways in 2026
🟢 1. SpinAura — #1 BCE pick, 9.2/10
Full BGaming catalogue.
💎 2. BetRiviera — 8-minute withdrawals
Confirmed BGaming catalogue.
🐝 3. HunnyPlay — Crypto-native BGaming
Extensive BGaming catalogue.
🔵 4. BigClash — BGaming + integrated sportsbook
Confirmed BGaming catalogue.
🔴 5. Betti — 150% bonus + BGaming
Confirmed BGaming catalogue.
FAQ — Book of Cats Megaways
What is Book of Cats Megaways's RTP?
Official RTP: 96.95%. Marginally lower than the original Book of Cats (96.99%) but offset by the 117,649-ways Megaways format plus cumulative x10 multipliers.
Book of Cats Megaways or the original Book of Cats?
Original (July 2020): 5x3, 10 paylines, 96.99% RTP, 8,202x max win. Megaways (Nov 2022): 117,649 ways, 96.95% RTP, 10,000x max win plus cumulative multipliers. For classic Book format, go original. For the modern Megaways format, choose Megaways.
Which bonus buy should I pick?
100x standard gives a random expanding symbol (could be low or premium). 150x premium guarantees a premium symbol — a 50% surcharge to lock in high value. For most players, 100x remains the smarter EV-positive ratio.
Is Book of Cats Megaways available in the EU?
Yes, at most of the top-rated casinos in our comparison that carry BGaming.
🎰 For the full technical breakdown (mechanics, statistics, casinos that carry the slot), see our dedicated Book of Cats Megaways slot page.
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