How to play Book of Hidden Tombs

Walk the burial chambers beneath the sand, where every stone tablet and golden relic carries a prize. Land 3 Book symbols and the tomb opens for 10 Free Spins. One symbol is chosen to expand across its reels, building wins that a single reel could never pay alone. Book of Hidden Tombs is a fixed-payline slot from BGaming. It plays on a 5x3 grid with wins forming on adjacent reels from left to right. The Book symbol acts as both Wild and Scatter, substituting for other symbols in line wins and triggering the feature when enough land. The Explorer symbol pays 500x your stake for 5 of a kind. Here is how you play.

Pick a stake and spin the 5x3 grid with its fixed paylines.
Watch for winning combinations of 3 or more matching symbols on a payline, starting from the leftmost reel.
Land 3 Book symbols anywhere on the reels to trigger 10 Free Spins.
Before the Free Spins begin, one regular symbol is chosen at random to become the Golden Expanding symbol.
During Free Spins, when enough of the Golden Expanding symbol lands, it expands across its entire reel to create more wins.

Key mechanics

Golden Expanding symbol: Before the feature begins, one regular symbol is chosen at random, and when enough of that symbol lands it expands across its reels to create and extend wins.
Progressive Multiplier: This mechanic appears in the stronger bonus mode, starts at 1x, and doubles after non-winning spins until a win lands and uses the current multiplier.
Chance x2: This is an optional stake-raising toggle that increases the chance of triggering the feature and adds 0.5x to the total stake.

Bonus rounds

Free Spins (3 Book symbols): awards 10 spins. One symbol is chosen as the Golden Expanding symbol, and additional Book symbols can retrigger the round.
Super Free Spins (3 Book symbols): also awards 10 spins, but adds a Progressive Multiplier that doubles after non-winning spins.
Free Spins (Bonus Buy for 100x stake): grants direct entry into the Free Spins round.
Super Free Spins (Bonus Buy for 200x stake): grants direct entry into the Super Free Spins round.

What is the RTP of Book of Hidden Tombs?

The RTP is 94% on Acebet.cc.

What is the volatility of Book of Hidden Tombs?

Volatility is high, as rated by the provider.

How many paylines does Book of Hidden Tombs have?

There are 10 fixed paylines, so every spin plays all 10.

What are the highest paying symbols in Book of Hidden Tombs?

Symbol	Top pay
Explorer	500x
Ra	200x
Anubis	100x
Bastet	50x
A	20x
Book	20x

What is the hit rate of Book of Hidden Tombs?

Wins land on 24.39% of spins on Acebet.cc. That is roughly one paying spin in 4.

Does Book of Hidden Tombs have free demos?

Yes, demo play is supported on Acebet.cc. Gold Coins are the other free way to play it.

Does Book of Hidden Tombs have free spins?

Landing 3 Book symbols triggers 10 free spins. Inside this round, one symbol is chosen as the Golden Expanding symbol, and additional Book symbols during the round can retrigger it for more spins. Acebet.cc's welcome bonus can be used on Book of Hidden Tombs.

Does Book of Hidden Tombs have bonus games?

It offers a Feature Buy option. Free Spins can be bought for 100x the stake, and Super Free Spins for 200x the stake.

How does Book of Hidden Tombs's Golden Expanding symbol work?

The Golden Expanding symbol is central to the bonus rounds. Before Free Spins or Super Free Spins begin, one regular symbol is chosen at random. When enough of this chosen symbol lands on the reels during the bonus, it expands to cover its entire reel. This expansion can create and extend wins across multiple paylines.

Does Acebet.cc offer a no-deposit bonus for Book of Hidden Tombs?

Yes. New players get 10 SC free at signup with code ACEBET, no purchase necessary, plus a 200% bonus on a first Gold Coin purchase up to 10 SC. Bonus SC carries a 1x playthrough before it can be redeemed. Both can be played on Book of Hidden Tombs. Claim the no deposit social casino bonus. You must be 18 or older, and eligibility depends on where you play from.

What is a good strategy for Book of Hidden Tombs?

It is a high volatility slot. The core mechanic is the Golden Expanding symbol: before the feature begins, one regular symbol is chosen at random, and when enough of that symbol lands it expands across its reels to create and extend wins. Players can purchase Free Spins for 100x their stake or Super Free Spins for 200x their stake. The Super Free Spins include a Progressive Multiplier that doubles on losing spins. Acebet.cc's crash casino is the same tension with a cash out button.

How do you trigger the free spins?

Landing 3 Book symbols triggers 10 Free Spins. Additional Book symbols during the round can retrigger it for more spins.

What does the Book symbol do?

The Book symbol acts as both Wild and Scatter. It substitutes for regular symbols in line wins and also triggers the feature when enough land.

What is the Golden Expanding symbol?

It is a random symbol chosen before the feature begins. When enough of that symbol lands, it expands across its reels to create and extend wins.

What is Chance x2?

Chance x2 is an optional toggle that increases the chance of triggering the feature. Activating it adds 0.5x to the total stake.

More book slots on Acebet.cc

Here are more book slots from the full social casino slots library on Acebet.cc.

Book of Hidden Tombs also appears on the Egyptian slots list, with Sun of Egypt 4 and Sun of Egypt 5.

RTP and volatility are set by the provider and subject to change. The figures above were accurate at publication. The in-game paytable always shows what the build is running right now.