Book of Oil
The Book of Oil video slot is a title produced by Endorphina. It plays a bit on the Egyptian-themed titles that the slots genre is known for by looking at another resource that’s valuable in the area. Parody aside, it’s also a solid title in its own right with some good features and a high hit-rate.
Casinos with Book of Oil
- Book of Oil
An Introduction to Book of Oil
In the online slot world, you’ll find a ton of games based on Egyptian mythology. The concept of a magical, sacred book is common in those games. Endorphina produced the Book of Oil video slot in a way that pokes a bit of fun at those titles.
Instead of focusing on the mythology, it focuses on oil production in the region. This tongue-in-cheek approach is typical of this software provider.
With the theme, the concept is presented in a pretty straightforward way. You’ll see an oil field with a city scene behind. The top-tier symbols on the reels fit the oil part of the theme perfectly as well. However, the other symbols are styled more like a mythology-based slot, and that especially includes the card rank symbols. The idea is played at pretty well without necessarily rubbing the player’s face in it.
On the gameplay end of things, Endorphina made sure that it’s a solid experience. Parody and poking fun go out the window when you’re looking at this game’s generous pay schedule. Lots of ways to get paid sizable sums come on the regular pay table. However, you also get some extra ways to win from the feature set. These elements combine to give a pretty solid play style overall.
Betting and Layout
The betting setup for this game offers a lot of ways to modify your settings. However, it’s also not so complicated that it’s difficult to use. In what follows, we’ll show you what you need to know to get started:
- Five reels and three horizontal rows set up the game’s board of symbols.
- Players get a maximum of 10 paylines. You can change this number to a variety of options. However, it’s best to keep this set to 10, and we’ll show why further down below.
- All wins on paylines run from left to right only. Additionally, they have to start on the far left reel.
- You can choose from a variety of coin sizes that range from €0.01 to €1 apiece. You can also wager on one to ten paylines. Additionally, your wager can be multiplied several times over.
- The end result is that, with all paylines activated, your minimum bet size is just €0.10 per spin. However, the maximum size will depend on which casino you’re playing with.
With all of the above said, there are two other things you should know. First, to keep everything simple and straightforward, we’ll be discussing wins as a multiple of the total amount you’re wagering. This avoids the confusion and complication that can come with discussing them in terms of line bet wagers.
Second, this title has a medium volatility. The swings aren’t particularly low, but they aren’t particularly high either. Additionally, this game has a slightly higher hit-rate than average for medium-volatility titles. This information is important for players who like to adjust their bet sizes accordingly.
Gameplay and Features
The feature set for the Book of Oil video slot is pretty solid. It offers a few different ways to get paid outside of the regular pay table. It’s also important to point out that the gamble feature is atypical and should always be checked out. We’ll get into why that’s the case and how to play it further down below.
Wild Book of Oil Symbols
The purple book symbol shows up on each of the five reels. It has a valve attached to it as a part of the purple and gold design. This plays into the oil theme pretty well. Additionally, this is a wild symbol that gives some pretty solid payouts on its own. Lining up wilds on a given payline can give you the following prizes:
- Five of a Kind – 500x
- Four of a Kind – 100x
- Three of a Kind – 10x
- Two of a Kind – 1x
Each individual payline is evaluated from left to right. Along these lines, the wilds will give the best payouts on a per-line basis. That means that a single wild can substitute for different symbols on the same spin.
Scattered Book Payouts
This wild book symbol also gives scatter payouts. The scatter payouts in the Book of Oil online slot are calculated separately from the line-based wins. They give you payouts of the following:
- Five of a Kind – 200x
- Four of a Kind – 20x
- Three of a Kind – 2x
You have a few things you need to know here. First, these scatter wins pay no matter where the symbols are located on the board. Second, the same symbols that give a line win can give a scatter win. Finally, these wilds substitute for anything in the entire game.
Free Spins With Special Expanding Symbols
When you’re able to pick up three or more of the book symbols on the game board, you trigger a free spins feature. No matter how many scatters are used to start the feature, you always start with 10 free spins.
During this free spins mode, a random symbol is selected at the beginning. It becomes a special expanding symbol. After wins are calculated, if enough expanding symbols are on the board to warrant a payout, they’ll expand to cover the whole board. What’s more is that these symbols pay no matter the position, so they don’t have to be on adjacent reels from left to right like all of the other wins. Note that the wilds cannot substitute for these expansions.
Three or more scatters during the feature will add 10 more free spins to your total.
How to Win at Book of Oil
A key game mechanic to know in this title has to do with the gamble feature. In most online slots, you can completely ignore this feature. However, doing so in this game will actually hurt your RTP percentage.
What you should do is always check to see which card you have showing. If you have a 2, 3, 4 or 5 showing, then you should always play. However, with a 9, 10, J, Q, K or A showing, you should not play. When facing a 6, 7 or 8, it’s break even to play, so you can choose to play if you’d like.
Outside of this, you should simply choose a bet size that you’re comfortable with and go from there. No betting adjustments are necessary outside of that because this game has a medium volatility.
Payout Structure for Book of Oil
The businessman pays 500x for five of a kind, which is the same as the wild. You can also earn 200x for five of the oil rig. Five of a kind combinations of the drums and stacks of money each pay 75x. Note that for all four of these symbols, as well as the wild, payouts begin with two of a kind or more. For all of the other symbols in this game, you need at least three.
That brings us to the purple A and orange K symbols. They each pay out at 15x for five of a kind combinations. Finally, the yellow Q, blue J and red 10 symbols all give you 10x wins for lining up five on a payline. It’s important to note how balanced this pay table is with plenty of wins at all different levels. The hit-rate is also higher than you’d expect from a medium-volatility title.
Overview
We truly like how the visual appeal gives slot fans an overwhelmingly immersive play style compared to just being an unimportant aspect of the slot. We also want to point out that a variety of bonus features are used in this title, and that is something we can’t say for a lot of the competition.
This slot is an excellent part of this company’s overall offering of online slots because of its visual appeal and gameplay, and when compared to other slots that utilize related overall concepts, this online slot is different in a few ways compared to only being one of the sub-genre. Additionally, the play style with this game offers a tremendous amount of fun.
FAQ
Which online casinos have Book of Oil?
Use the list of Book of Oil casinos to see all online casinos that have Book of Oil. We filter the casino top list to only show Book of Oil casinos that accept players from your location.
What is the Return to Player (RTP) for Book of Oil?
The Book of Oil RTP is 96.05%. An RTP of 96.05% puts Book of Oil among slots with an average Return to Players. To be a high RTP slot it would have to be 98% or more.