Book of Oil Slot Review

Book of Oil Slot Game Review

I first sat down with Book of Oil as soon as Endorphina released it, drawn by that mix of black gold glamour and classic book mechanics. You get a 5x3 layout with 10 adjustable paylines, an RTP around 96.05%, and medium‑leaning volatility. Stakes start low and can climb quite high, so I could mess around in demo mode before committing a bigger bankroll to chase those bigger wins.

What struck me straight away was how tightly the theme hangs together. The background shows rigs and a city built on oil money, while the reels are packed with tycoons, pumpjacks, barrels and cash. The soundtrack mixes woodwind and synths in a funky loop that fits long sessions well. It feels like a modern take on the classic book slot, only dressed up in black and gold.

Gameplay of Book of Oil

Book of Oil keeps the core gameplay very straightforward, which suits me fine. Wins pay left to right on active lines, and you can tweak both line count and stake from the panel under the reels. I like starting with fewer lines and smaller bets while I test the hit rate, then moving up to the full ten lines once I have a feel for how the balance is flowing.

The information button in Book of Oil is where I always head first. That is where the paytable, details on the dual wild and scatter book, free games rules and gamble feature all sit in one place. Turbo and autoplay are there for quicker sessions, but I still prefer manual spins, especially when I am watching for those books landing in teasing two‑scatter hits across the grid.

Book of Oil RTP and Variance

RTP figures matter a lot to me, and Book of Oil sits at about 96.05%, which is solid for an online video slot. The volatility feels medium overall, though long play sessions can throw in some high‑variance stretches where the balance dips before a decent feature hit. I usually manage my bankroll with that in mind, pacing spins and avoiding big jumps in stake during quieter patches.

Book of Oil Symbols & Paytable

Symbols in Book of Oil lean hard into the oil industry fantasy. At the top sits the Oil Tycoon, followed by rigs, barrels and cash, all drawn with a glossy finish that fits the high‑life theme. Then you have the card ranks from ten to ace, styled to match the rest of the set. As usual, premium icons carry the real punch, while the royals keep smaller hits ticking over.

On the paytable, the Oil Tycoon symbol pays 1x, 10x, 100x and 500x your line bet for two, three, four and five of a kind. Oil Rigs pay up to 200x, while Barrels and Cash share a top award of 75x. Among the lower symbols, aces and kings rise to 15x for five, with queens, jacks and tens paying up to 10x but hitting far more often in real play.

The real engine, though, is the book symbol itself. In Book of Oil it pulls double duty as both wild and scatter, which I always enjoy. As a wild it stands in for other symbols to complete lines, and as a scatter it pays anywhere and triggers the free games. Three or more books drop you into the feature and also bring a tidy payout on their own.

Symbols and Paytable

Symbol	Quantity	Payout
	5	x500
	4	x100
	3	x10
	2	x1
	Scatter, Wild
	5	x200
	4	x20
	3	x2
	5	x200
	4	x40
	3	x4
	2	x0.5
	5	x75
	4	x10
	3	x3
	2	x0.5
	5	x75
	4	x10
	3	x3
	2	x0.5
	5	x15
	4	x4
	3	x0.5
	5	x15
	4	x4
	3	x0.5
	5	x10
	4	x2.5
	3	x0.5
	5	x10
	4	x2.5
	3	x0.5
	5	x10
	4	x2.5
	3	x0.5

Book of Oil Slot Features

Feature‑wise, Book of Oil sticks close to the classic book format but adds a couple of twists. Hit three or more book scatters and you get 10 free games, with a special expanding symbol chosen at the start. When enough of that symbol land, they expand to fill their reels and pay on any position across active lines. This is where I have seen the slot fire its biggest wins.

After any regular hit in Book of Oil you can jump into the gamble feature, a simple card pick where you try to beat the dealer and double your last win, up to ten times in a row if the streak holds. If I feel impatient, I sometimes use Bonus Pop to buy straight into the free games instead, though that option may depend on where you are playing.

Mobile-Optimized Gameplay in Book of Oil

I have played Book of Oil on both desktop and mobile, and the experience holds up nicely across formats. The controls shrink cleanly onto smaller screens, with spin, autoplay and bet settings easy to hit even on a phone. The graphics keep their sharp look in portrait mode, and the soundtrack loses none of its punch, so it is a good choice for a few quick spins on the go.

Book of Oil Review

After plenty of sessions, Book of Oil has earned a spot in my regular rotation when I fancy a classic book slot with a different skin. The medium volatility means I can grind along on smaller bets without the balance falling off a cliff, yet the expanding symbol feature still gives enough punch to chase those headline wins. The dual wild and scatter book also keeps the base game from feeling flat.

It is not the most complex release from this studio, but that is exactly why I keep coming back to it. When I want free games with a high‑impact symbol, a slick oil‑themed setting and the option to gamble a few wins, Book of Oil does the job. I would happily recommend it to anyone who likes the book style and wants something that plays smoothly with modern visuals.

Screenshots