Theme and atmosphere
Warrior animals, sloping tiled rooftops, mountains and trees: the setting is cartoon-styled and exotic rather than reverent, and the tone lands nearer sassy than traditional. It is a clear step away from the bamboo forest of its predecessor. Artwork quality holds across both the base game and the free spins screens, and nothing about it tries to be realistic, which suits the material. More of the studio’s catalogue sits on our relax gaming demo hub.
How does the Big Bam-Book Slot Demo play?
Big Bam-Book is a 5-reel, 3-row slot with 10 fixed paylines, and base game wins form from the leftmost reel outward. The RTP is 96.31% at the top rate. Maximum win is 10,000x the bet, and stakes run from 0.10 to 100 per spin. Card suits are the low pays at 5x to 10x for five of a kind, three weapon symbols pay 25x for five, and the three character symbols pay 100x to 500x. Wilds land on every reel, substitute for everything except Mystery Bamboo, Instant Prize and scatter symbols, and pay up to 500x for five. Released on August 29, 2024, it is a quieter base game than the original by design. Note that our catalogue credits Relax Gaming while the game is attributed to Push Gaming elsewhere, so check the info panel if the studio matters to you.
⚠️ Worth Knowing: That 96.31% is the top rate, and three lower tiers exist at 94.42%, 88.58% and 85.74%. The Push Bet side bets may also alter the return. Check the paytable at your chosen casino before staking real money.
What do the bonus features do?
Everything starts with the Mystery Bamboo symbol. Land three or more and they expand vertically to fill their reels, then reveal matching pay symbols, wilds, or the golden variant. Any winning line after the expansion pays, including lines that already paid before it.
Golden Mystery Bamboo symbols return an Instant Prize of 1x to 100x the stake instead of a pay symbol. In the base game only, they can also uncover extra scatters, once per reel, giving a second route into the bonus.
Three scatters awards 8 free spins, four awards 12 with the multiplier meter at level 1 (x2), five awards 15 starting at level 2 (x3). Collect four scatters during the round and the meter advances a level and adds five spins, up to level 4 and x10. Two rules change here: the multiplier applies to Instant Prizes, and expansion-revealed symbols pay from any position across the 10 paylines rather than left to right. That second rule is the fun one. The first is where value leaks, because expanded symbol wins take no multiplier at all, and a x10 that touched them would have been a different game.
Push Bet raises Mystery Bamboo frequency for 20% extra, scatter frequency for 20% extra, or both for 40%. Bonus Buy costs 63.6x for three guaranteed scatters, 138.2x for four, 187.6x for five and 100x for a random count. The 138.2x buy is the pick: 12 spins starting at x2 is a structurally better round than eight at no multiplier.
How it compares
Here is how it lines up against the closest games in our catalogue.
| Big Bam-Book | Beast Gains Slot | Big Bamboo Slot | Wild Swarm 2 Slot |
|---|
| Why it’s here | The game reviewed here | Relax Gaming, also Animals, 25,000x top win | Fixed Paylines, East Asian theme, 50,000x top win | Fixed Paylines, Animals theme |
| Mechanic | Mystery Symbols, Instant Prize Symbols, Fixed Paylines | Mystery Symbols, Jackpot, Ways to win | Mystery Symbols, Bonus wheel, Symbol upgrades | Instant Prize Symbols, Fixed Paylines, Collection meter |
| Theme | East Asian, Animals | Adventure and exploration, Animals | East Asian, Animals | Animals |
| Format | 10 paylines, 5x3 | 4,096 ways, 6x4 | 50 paylines, 5x6 | 20 paylines, 5x4 |
| RTP | 96.3% | 96.1% | 96.1% | 96.7% |
| Max win | 10,000x | 25,000x | 50,000x | 10,000x |
| Volatility | 9/10 | 9/10 | 9/10 | 9/10 |
| Our score | 7.0 | 8.5 | 9.5 | 8.0 |
What are the best casinos for Big Bam-Book?
Any operator carrying the studio’s catalogue should have this one, and our Relax Gaming casinos page lists the sites that do. Since the game ships in four RTP tiers, the operator you pick genuinely affects your return, so treat that as a selection criterion rather than a footnote.
For a high-volatility slot with a 10x multiplier meter to chase, spins-based offers stretch a bankroll further than a small cash match. Our casino bonuses hub breaks down what is on the table and the wagering attached to it.
Play the Big Bam-Book Slot Demo for free
The free demo above runs on play money with the full feature set intact, so Push Bet, the bonus buys and the multiplier meter all behave exactly as they do for real stakes. Give it 200 spins at a flat bet first. The base game is deliberately calm, expansions come and go without much drama, and knowing that in advance stops the quiet stretches feeling like a fault. Then spend some play credit on the buys and see which starting scatter count you actually enjoy.
💡 Tip: Before depositing, run the 40% Push Bet in the Big Bam-Book Slot Demo for a hundred spins and compare it to flat betting. It costs nothing here, and it tells you whether the extra mystery and scatter frequency is worth the price tag on your usual stake.
Pros and cons
| ✅ Pros | ❌ Cons |
|---|
| Progressive meter to x10 with +5 spins per level | Instant Prizes capped at 100x, down from 5,000x |
| Any-position pays on expanded stacks in free spins | Multiplier skips expanded symbol wins |
| Four bonus buys plus three Push Bet settings | Card suits no longer convert to mystery symbols |
| Sharp cartoon artwork and character design | Base game quieter than its predecessor |
Verdict
- The free spins round carries this game, and the scatter meter gives it a genuine second gear.
- Base game sessions are patient work, so the 138.2x buy is where the entertainment is concentrated.
- Fans of the studio’s most extreme maths will find the 10,000x ceiling modest.
- Newcomers to the mechanic get a friendlier introduction than the original offered.
Best for: players who want mystery-symbol suspense and a climbing multiplier without a 50,000x ceiling hanging over every spin. Skip if: you came for the predecessor’s explosiveness.
Play within a budget you have set in advance, and stop when it is gone.
In summary
In summary, Big Bam-Book is a high-volatility 5x3 slot from Relax Gaming, released on August 29, 2024, with 10 fixed paylines, a 96.31% top RTP and a 10,000x maximum win. Mystery Bamboo symbols expand to reveal pays, wilds or Golden Instant Prizes worth 1x to 100x. Free spins start at 8, 12 or 15 spins and build a multiplier meter to x10. Bets run 0.10 to 100.
