Book of Lady

Book of Lady

The Book of Lady online slot from Endorphina offers up a fashion-based theme based on luxury. It’s a great-looking title with action-oriented gameplay that comes from a few key mechanics. One of those is a value-packed free spins mode with expanding symbols for even more wins.

Rating: 85% | Made By Endorphina | Reviewed On

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An Introduction to the Book of Lady Slot

The realm of online slots have a lot of different tropes and themes that are used frequently. However, Endorphina slots try to step outside of what’s been done over and over again. To this end, we have the Book of Lady video slot, which is much different than most of what’s out there.

Book of Lady Main Screen
Book of Lady Main Screen

For one, it’s a game that appears to be primarily aimed at women. However, it’s still a game that everyone can enjoy.

The overall idea here is that you’re standing in the halls of a huge mansion. It has a purple and violet theme to it that looks tremendous. Additionally, you’ll see a different purple pattern in the background of the reels themselves. Overall, everything comes together to create a very upscale aesthetic. On top of that, you’ll see high heels, a gorgeous white cat and other symbols of wealth and luxury on the game board.

Endorphina didn’t skip over giving players excellent gameplay just because the theme and presentation are on-point. Instead, it’s all about making sure that you have a great time with several sources of action. However, this comes from both game mechanics during the normal game as well as a bonus feature that brings even more value. Overall, when you combine everything, players get a really in-depth experience that’s also immersive at the same time.

Betting and Layout

If you want a good idea of how this game is set up, we’ll offer it to you here. However, it’s pretty easy to get used to, and they didn’t use any kind of atypical format. With that said, the betting is slightly more complicated than average for the modern era. In any case, here’s what you’ll want to know:

  • Five reels are used in this title that run up and down vertically. Across the reels horizontally are three rows as well.
  • Endorphina gives players a maximum of 10 paylines in this game. However, you can play with fewer than 10, though we do not recommend it.
  • Note that we will assume you’re playing with all 10 paylines activated in this slot in the following.
  • Players are able to pick coin sizes ranging from €0.01 up to €1 per turn.
  • Subsequently, this leads to an overall betting spread that goes from €0.10 to the €10 level per spin.

It’s important to keep the number of paylines maximized because of how the features and payouts work. That aside, we also will not be describing wins in coin amounts. Instead, we’ll talk about them as a multiple of your wager as a whole.

The volatility level of this game is about medium. However, it’s interesting because the regular game mode does have an above-average hit-rate. While this would usually drag the volatility down below the average, the fact of the matter is that the bonus feature packs so much value that it brings it back up to the medium level.

Gameplay and Features for the Book of Lady Video Slot

In the following, we’ll break down each feature and gameplay mechanic for the Book of Lady online slot. However, we really want to make sure that you pay attention here. The reason for that is that some of these features are atypical. Moreover, if you don’t pay attention to the gamble feature in particular, then you will lower your RTP percentage and get worse payouts.

Book of Lady Wild Symbols
Book of Lady Wild Symbols

Wild Book Payouts

In the middle of all of the wealth-based symbols, many of which look like they came from similar wealth-based games, the red book is the main focus of the slot. One of the reasons for this is that it acts as a wild symbol.

This wild also appears on every one of the five reels. Subsequently, it offers some pretty strong payouts when it lines up on a payline. Here’s an overview of what the payline-based wins look like for the red book symbol:

  • Five of a Kind – 500x
  • Four of a Kind – 100x
  • Three of a Kind – 10x
  • Two of a Kind – 1x

Of particular note is that you can win with just two of a kind with this wild. That’s a part of what we mentioned earlier that the hit-rate of the regular mode is above-average.

With that said, this book symbol is responsible for a lot more than the wild book prizes. In the following, we’ll get more into the other major functions of this symbol.

Scattered Red Book Wins

The red book symbol also acts as a scatter symbol. However, this isn’t just for bonus wins. It’s also for regular scattered payouts. This can create some confusion with how the payline-based wins work simultaneously. We’ll explain how they work together down below. First, let’s look at what the scatter payouts look like:

  • Five of a Kind – 200x
  • Four of a Kind – 20x
  • Three of a Kind – 2x

When you get these symbols anywhere on the game board, they will pay out these prizes. That’s including situations where they also make a line-based wins. However, the key thing to understand is that these wins are calculated separately.

For example, if you were to line up five of the wilds on a payline, you’d get the 500x line bet win. However, you’d also receive the 200x prize for the scatter wins. Again, they’re calculated separately from each other and are subsequently awarded separately as well.

Book of Lady Free Spins
Book of Lady Free Spins

Book of Lady Free Spins

Whenever at least three of the books land on the reels, no matter the positions, you trigger the bonus feature. The Book of Lady free spins mode always starts you off with 10 free spins no matter how many scatters were used to activate the feature.

At the beginning of this mode, a random non-book symbol is chosen. This is the expanding symbol for the feature. On each spin, they will expand after any other wins are calculated. From there, they pay out from left to right on all 10 paylines regardless of their positions. To make this more clear: They don’t have to land on consecutive reels from left to right. While they don’t offer multipliers in a free spins feature, you get bigger wins another way in the Book of Lady video slot’s bonus mode.

Additionally, to take this to the next level, you can actually get multiple expanding symbols. This happens each and every time you re-trigger the free spins mode. A new expanding symbol is awarded, and they will take turns expanding to offer extra wins at the end of each free turn.

The Atypical Gamble Feature

The risk game, or gamble feature, is frequently something that many players completely ignore in modern slots. However, that would actually be a legitimate mistake in this title.

You have to pay attention to the gamble feature to maximize your RTP rate in this slot.

After each win, you can view the gamble feature without having to play it. That’s the crux of why it’s so important to pay attention to it. Overall, the feature is in a standardized style where you have four cards dealt face-down with one face-up.

You’re trying to pick a card at random from the face-down options that are higher than the face-up one. The trick here is that you get to see the face-up card ahead of time before you decide to actually play or not.

How to Win at Book of Lady

You have two main things you need to pay attention to in this slot to get the best RTP percentage possible of 96.03 percent.

First, it’s important to keep the number of paylines set to 10 at all times. This gives you the maximum payout rate on the reels and from the scatters.

Second, you need to make sure that you engage properly with the gamble feature. A lot of Endorphina slots have this atypical mechanic, so it’s good to learn if you enjoy their games in the general sense. Essentially, what you should do is view the gamble feature after each win. However, you should only play it if you see a two, three, four or five face-up. All other cards can be ignored.

Book of Lady Payouts
Book of Lady Payouts

Payout Structure for the Book of Lady Online Slot

The lady herself pays 500x for five of a kind. Her blonde hair will be sure to get your attention with such a darker purple-based background behind her. Likewise, you can also pick up 200x for five of the fluffy white cat. Additionally, wins of 75x are yours for five of a kind of the purse or high heels. All four of these symbols pay for just two on a payline.

However, for the card rank symbols, you need at least three. This includes the purple A and orange K, which both give you 15x wins for five. Five of the yellow Q, blue J and red 10 symbols all give you 10x wins as well.


Endorphina has a history of making online slots with solid gameplay that use a variety of atypical themes. We have to say that this falls into that category quite a bit. With that said, the depth of play is pretty solid considering what you might expect from the presentation.

In a lot of ways, this game reminds us of The Queen’s Curse online slot except with darker tones. The gameplay and pay tables are similar, and the action comes at a similar pace.

Overall, we think this title has a super-solid position as a part of Endorphina’s overall portfolio. It definitely offers an option that isn’t always there for certain types of players who prefer certain types of surroundings.


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What is the Return to Player (RTP) for Book of Lady?

The Book of Lady RTP is 96.03%. An RTP of 96.03% puts Book of Lady among slots with an average Return to Players. To be a high RTP slot it would have to be 98% or more.