| 👑 Provider | Endorphina |
|---|---|
| 💥 RTP | 96.05% |
| 🎁 Bonus game | Yes |
| 💎 Free spins in the game | Yes |
| ✅ Automatic play | Yes |
| 🎰 Playing field | 5×3 |
| 💵 Minimum bet | $1.0 |
| 💰 Maximum bet | $5 |
| 📅 Date of issue | 23.09.2021 |
| 💳 Paylines | 10 |
Now may be your turn to make a fortune off the black gold. As the name suggests, Endorphina built the Book of Oil slot around oil production. Along with the unique and stimulating theme, features like Gamble, Free spins and Bonus Pop make it possible to bag the highest payout of 10,000x.
Many millionaires around the world built their wealth off black gold. That makes the oil-investment-themed slot a unique and great idea. Your ultimate goal should be to become an oil tycoon and land five wealthy-looking oil man icons to win 500x your bet.
The first noticeable visual appeal of the Book of Oil is the desert landscape in intense hues. Overall, the developer successfully depicts modern oil exploration settings that have barrels and pump jacks with the oil man as the main icon. The funky sound complements the immersive graphics perfectly.
The game is presented on 5 columns and 3 rows, offering up to 10 paylines. Set the coin value from $0.01 to $10. It implies that you can make a total stake of up to $100. After that, hit the spin button to spin once. Alternatively, hit the autoplay button to activate up to 100 continuous spins simultaneously.
| Symbols | 2 | 3 | 4 | 5 |
|---|---|---|---|---|
| Oil man | 1x | 10x | 100x | 500x |
| Pump Jack | 0.5x | 4x | 40x | 200x |
| Book | - | 2x | 20x | 200x |
| Barrel, Dollar Bill | 0.5x | 3x | 10x | 75x |
| A, K | - | 0.5x | 4x | 15x |
| Q, J, 10 | - | 0.5x | 2.5x | 10x |
Next, we will look at the best bonus feature on the Book of Oil.
Free games are the main highlight feature of the Book of Oil slot. Landing three scatter symbols is all you need to trigger the bonus round.
Another notable feature of this slot is the expanding symbol, which will expand across the reel. You get to select the symbol at the start of the game.
The game gives you ten chances to double your wins if you beat the dealer by guessing one of the four face-down cards.
Immerse yourself in the fascinating theme and exciting gameplay of Book of Oil. With average volatility, decent RTP and excellent features, the slot appeals to all types of players. Though a free version is available, have a shot at the max prize of 10,000x playing for real money at our site.