Big Bam-Book: Slot Overview

In the days before the Internet became the go-to source for answers, learning something usually meant asking around or picking up a book—often from the library. If it wasn’t there, you were simply out of luck. It’s hard not to wonder how much information, if any, still exists that isn’t sitting on some server somewhere, burning electricity. If you lean more toward pen and paper, you may enjoy teaming up with the heroes in Push Gaming’s Big Bam-Book, a fairly close relation to the popular slot Big Bamboo. Here, players follow a band of warrior animals as they gather ancient books that unlock free spins, where a progressive multiplier mechanic can come into play.

Big Bam-Book is set in an exotic Asian-inspired location. Rather than the earlier bamboo forest, the backdrop is a more developed scene of slanted tiled rooftops, mountains, trees, and similar scenery. A cheeky cartoon style keeps Big Bam-Book from feeling like a strictly traditional Asian-themed slot, though the cultural influences are obvious. When loading a Push Gaming title, players typically expect strong visuals, and while Big Bam-Book may not be the absolute standout of the studio’s lineup, it still looks the part.

The action takes place on a classic 5-reel, 3-row grid, and Big Bam-Book comes with 10 paylines. Wins are generally paid left to right on adjacent reels, though during free spins it’s possible to score from non-adjacent symbol connections. Stakes run from 10 c to $/€100 per spin, and players can choose from three Push Bet options. The math model is highly volatile, and the top RTP (when not using Push Bet) is 96.31%.

On the paytable, the lower-value symbols are straightforward: 4 playing card suits. Mid-tier symbols are three deadly weapons, while the premium symbols are 3 character icons. Hitting 5 card suits returns 5-10 times the bet, 5 matching weapons pay 25 times the bet, and 5 of the same character symbol awards 100 to 500 times the bet. Wilds can appear on every reel and pay up to 500x the bet for a 5-wild line. They substitute for all symbols except Mystery Bamboo symbols, Instant Prize symbols, and scatters.

Big Bam-Book: Slot Features

Big Bam-Book blends elements of Big Bamboo with a “book” slot format, delivering features like Mystery Bamboo symbols, Golden Mystery Bamboo symbols, Instant Prizes, progressive free spins with multipliers and levelling up, along with bonus buys.

Mystery Bamboo Symbol

In both the base game and free spins, landing 3 or more Mystery Bamboo symbols activates the Mystery Bamboo Expansion. Once triggered, the Mystery Bamboo symbols expand to cover the full reels where they landed. The expanded Mystery Bamboo symbols then reveal either matching pay symbols, wilds, or they can turn into Golden Mystery Bamboo symbols. Any additional paylines created are paid out, even if that payline already produced a win before the expansion.

Golden Mystery Bamboo Symbols

Mystery Bamboo symbols can convert into Golden Mystery Bamboo symbols. Golden Mystery Bamboo symbols reveal Instant Prizes valued at 1x to 100x each. In the base game, they can also reveal scatters – once per reel.

Free Spins

Scatter symbols can land on all reels. Landing 3 scatters awards 8 free spins, 4 scatters awards 12 free spins with the multiplier meter starting at level 1, while 5 scatters grants 15 free spins with the multiplier meter starting at level 2. Each time a scatter symbol appears during free spins, it’s added to the multiplier reel. Collecting 4 scatters is required to progress the meter to the next level.

• Level 1 – x2 multiplier and +5 free spins.
• Level 2 – x3 multiplier and +5 free spins.
• Level 3 – x5 multiplier and +5 free spins.
• Level 4 – x10 multiplier and +5 free spins.

The multiplier affects any Instant Prizes won from Golden Mystery Bamboo symbols. In addition, during free spins, symbols revealed by the Mystery Bamboo Reveal pay across all 10 paylines no matter where they land on the reels.

Bonus Buy

Players can purchase free spins triggered by 3, 4, 5, or a random number of scatter symbols for 63.6x, 138.2x, 187.6x, or 100x the bet, respectively.

Push Bet

Big Bam-Book offers three Push Bets:

• Scatters – pay 20% extra to have an increased chance of landing scatter symbols.
• Mystery Symbols – pay 20% extra to have an increased chance of landing Mystery Bamboo symbols.
• Mysteries and Scatters – pay 40% extra to have an increased chance of landing Mystery Bamboo symbols and scatters.

Big Bam-Book: Slot Verdict

Mystery symbols can sometimes feel a bit basic in slots: they land, flip into a regular symbol, maybe a wild, maybe something better, and then the game checks for wins. With Push Gaming, mystery symbols and stacks tend to be pushed into a more exciting category. They’ve made a big impact in titles like Razor Shark, Mystery Museum, and, naturally, the previous Big Bamboo slot. In Big Bam-Book, they create plenty of suspense—especially in free spins, where revealed stacks can pay from any position in the classic Book of Dead style. Push Gaming hasn’t built Big Bam-Book entirely around this mechanic, but it’s a welcome extra, and it also gave the studio room to come up with a smart name for the game.

Instant Prize wins are another fan favourite, and Big Bam-Book can dish those out, along with a progressive multiplier that boosts coin wins during the free spins round. As a side note, it wouldn’t have been terrible if the free spins multiplier also applied to expanded symbols. Compared to Big Bamboo, Push Gaming has eased off a little with Big Bam-Book—if we’re sticking with driving metaphors, it’s like the nitrous has been taken out. For example, Instant Prizes in Big Bam-Book max out at 100x (before any multiplier is applied), whereas Big Bamboo reached 5,000x. Also, the low-pay card suit symbols are no longer turned into Mystery symbols like they were previously. The end result is a slot capped at 10,000x the bet this time, with fewer heavy-hitting tools available to potentially propel players toward that ceiling.

Pulling in the extremes may have helped create a smoother overall ride, and that’s the impression Big Bam-Book leaves. Players who prefer Push Gaming’s wilder, more intense experiences might not get the jolt they’re chasing, but Big Bam-Book still delivers a satisfying mix of familiar mechanics with a fresh, mysterious spin.