Book of Treasures – a Thunderspin Slot

How to play

This video slot makes finding the ancient riches a cheap task. Here’s how; under the typical five reels with three rows, there is a “Coin Value” display, which you’ll use to adjust your bet. Use the “+” or “-” buttons on either side of this display to grow or reduce the value of your coins anywhere between €0.01 to €1.00. Consequently, it will change your total bet per spin from €0.20 to €20. So, the Book of Treasures slot should be fine for the conservative players.

Further outside the gaming window on the bottom left side, you’ll see a series of small additional but useful buttons. Here, you can access the info section, including the paytable and game rules. After you’ve selected a bet as per your bankroll, you can then click the huge golden button at the reel’s bottom center to spin. Alternatively, use the auto-play to set up to 500 automatic spins.

Symbols and payouts

Book of Treasures uses 243 ways to win, therefore, giving you an upper hand in forming winning combinations. It goes ahead and uses nine regular symbols, grouped into minor and major ones, depending on the wins they generate. You’ll need three or more consecutive symbols on a winning path from left to right for a win. However, in each way, the only highest formation pays out. 

On the lower end, there are the standard playing poker values tens to aces. Collecting at least three of a kind will award you prizes worth 3 to 30 coins. On the other hand, the higher-value icons are graphical to conform to the game thematically. They include an ornament, a bird mask, the Maya mask, and the jaguar mask, paying in ascending order. Managing three to five of a kind will remit wins anywhere from 8 to 70 credits, with the Jaguar being the highest valued. Admittedly, the pays aren’t that impressive but will still improve your bankroll.

There’s also a special Book symbol, which acts as a collective wild-cum-scatter. As a wild, it can exchange for any other symbol across a paying formation. Alternately, as a scatter, it can payout from 50 to 350 coins when it lands anywhere on a combination.

Best Book of Treasures bonus feature

The slot comes with multiple rich features. First is the cloning symbols feature, which activates when a symbol reveals from a book on the middle reel’s bottom. It triggers when there are similar symbols on two or more reel positions except for the middle one. The revealing symbol clones on the wheels that have identical icons. The blank reel positions aren’t part of the payout formation. Furthermore, if the revealing character drops out from the book, the in-game bonus doesn’t activate.

The title’s main highlight is the Book of Treasures free spins that can activate in two ways. First, it unlocks when at least three book scatters appear anywhere on the reels to gift 10 to 50 free games. Further, you can retrigger the mode up to 20 extra plays into the round, with three or more scatters. Additionally, three vaults storing randomly picked high-ranking mystical icons will replace the book symbol. You’ll receive more spins when you fill all three vaults.

Secondly, you can purchase bonus spins at a rate of 80 bets. The bought spins play at the current stake. You will then get a discount amounting to one bet any time book scatters rise from the open book. When the price equates to one bet, the bonus plays activate automatically with the next turn. 

RTP & Volatility

The Book of Treasures RTP value is a solid 96.5%, representing the long-term return to player payout. However, it has a high volatility, implying a slightly higher risk but with higher payouts. Nevertheless, with a low bet range, it should limit you from spending over your budget.