Book of Diamonds Slot - Review, Free & Demo Play

A how-to-play guide for Book of Diamonds is available below;

1. Visit an online casino and find the slot in the lobby
2. Launch the game and click “Start” once the content is fully loaded
3. Settle the by size from €0.1 to €100 per spin
4. Check rules & payouts and adjust the slot’s settings if needed
5. Start rolling the reels manually or automatically

Book of Diamonds has a standard 5x3 grid with 10 fixed betlines. The slot gives winning combinations from left to right on consecutive reels. All winning lines must start from the far-left side.

Aside from the base game, the slot offers free spins with expanding symbols.

It’s hardly surprising that Book of Diamonds has a high variance. Most of the slots with “Book of” mechanics are volatile. The game has a varied paytable; the highest-pay 5-symbol line is 50 times bigger than the lowest-pay one. Free spins are also unpredictable.

The theoretical return to player of Book Diamonds is 96.14%, right about the industry’s average value.

You can enjoy the fantastic atmosphere of Book of Diamonds on your smartphone or tablet. The slot is compatible with modern mobile devices based on Android or iOS.

You don’t need to do any specific manipulations to load the slot’s mobile version. Just start the game in the lobby from your device and enjoy an adaptive UI. Use a touchscreen for navigation and to control the gaming process.

Spinomenal is a thriving casino developer with offices in multiple countries, including Malta and Israel. The company was established in 2014 and is a significant player in the iGaming industry. The developer’s portfolio contains 300+ titles. You will be impressed by the diversity of Spinomenal content, as the company produces slots of various genres and mechanics, from 1-liners to innovative tumbling games. Slots like Book of Rebirth or Majestic King are considered all-time hits.

Aside from developing slots, Spinomenal offers various B2B and B2C services. The company holds an MGA license.

Free Spins

Land at least 3 Books to trigger 10 free games. At the start of free spins, an expanding regular-pay symbol will be chosen. A chosen symbol will expand during free games and pay anywhere.

If a chosen symbol is low-pay, it will expand if you land it on 3+ separate reels. If a chosen symbol is high-pay, it will expand only if you land it on 3+ different reels.

Buy Feature

Don’t want to waste time waiting for triggering free spins? then buy them! You can do this for 104x your bet.

The most efficient way to learn the gameplay and payouts of Book of Diamonds is by playing it for free. Luckily, Slotsjudge visitors can spin the slot without the risk on this page, as we loaded its demo version.

Enjoy a demo play, and don’t worry about losing or winning. Just learn the slot and use free sessions as an opportunity to prepare for the money game.

It’s not the first and not the last slot of “Book of” mechanics with the max win of 5,000x. Collecting a max win in Book of Diamonds requires filling the entire board with the highest-pay symbol (seven). Of course, the chances of getting big wins are higher during free spins due to expanding feature.

There are thousands of slots that have a “Book of” mechanics. But we are not sure if there is another classic game with classic symbols that offers a “Book Of” pattern. So, Book of Diamonds exemplifies how combining familiar attributes can lead to unique results.