If online slot machines are your gambling game of choice, you are probably always looking for new ones to play. Games that are challenging, interesting and have a fun theme. Games that may even have a large jackpot.

There is one online slot machine game that is currently very popular and, if you have not played it before, it is a game that should be at the top of your list.

What is the name of the game? The Book of Ra, of course.

Why play the Book of Ra? — This game is currently the most popular online slot machine game and it has been for several years. Played by millions of online slot machine fanatics every month, Book of Ra has many features that make it so much fun to play.

Besides, if a slot machine game is this popular, chances are it is a much better game than anything else currently available.

The storyline — Many gamblers love to play The Book of Ra and Book of Ra Deluxe due to its exciting storyline.

You play an explorer in The Book of Ra who is in Ancient Egypt looking for a powerful book. If found, the book will make the owner very rich.

This makes the game exciting to play as well as makes you want to bet on as many win lines as you can possibly afford, just to see how many Egyptian-style symbols pop up, and to see if you can become rich.

The Egyptian-style design — The design of The Book of Ra is beautiful. It sticks closely to the Ancient Egypt theme with hieroglyphs, pictures of Ancient Egyptian pharaohs and, of course, the mysterious Book of Ra.

The game has fun Egyptian style sound effects,and feels like a really authentic game.

More pay lines than most games — The Book of Ra has a massive nine pay lines or win lines. That means you have nine chances of winning on every spin as long as you place a bet on all nine lines.

If you play the Deluxe version of the game, it has 10 pay lines, so an added chance to win big.

Fun bonus games — The Book of Ra also offers bonus games with particular spin results.

All you have to do to win a bonus game is to get three matching symbols on any one of the win lines. When you do, the bonus game starts immediately and places the same bet on the bonus spin that you had placed in the previous one.

In the bonus game, you get 10 free spins. No wonder people love this game so much as there are few other games that offer that number of free bonus spins for just getting a few symbols.

Completely playable via browser — There is no need to download a special app or program or configure your computer to be able to do additional things.

Instead The Book of Ra can be played directly from your usual browser giving you access to the game from anywhere you and your computer are located.