Book of Brawlers (Endorphina) – Review & Demo Play

Endorphina: The Slot Provider Behind Book of Brawlers

Endorphina has long stood out for high-quality slots and engaging gameplay. As someone who spins daily, Book of Brawlers feels like a proper showcase of their fair, reliable approach. The theme blends mythical warriors with modern fight energy, and the studio’s polish is evident from spin one. I see their global player base reflected here: sharp visuals, tight maths, and features that actually matter. It’s a solid example of Endorphina pairing immersive themes with mechanics that keep me pressing spin.

Book of Brawlers Slot Specifications: RTP, Volatility, Max Win & Theme

Book of Brawlers runs on a 5-reel, 3-row layout with 10 paylines. Bets range from 0.01 to 50 per spin, so I can test lines cheaply then step up. The RTP sits at 96.05%, with volatility reading medium to high on most meters. That balance suits my session goals: steady base play with chances for bigger hits. The engine keeps the pace brisk while still leaving room for feature spikes, which is how I like a ten-line setup.

Max win reaches 5,000x, which puts proper weight behind the features. The theme leans into MMA energy and close-quarters combat, backed by vibrant visuals and punchy audio. On mobile, the interface scales cleanly and keeps controls straightforward, so quick sessions are easy. I’ve had no issues switching between portrait and landscape. Overall specs read familiar for a book-style slot, but the presentation and timing make it feel lively rather than stale.

Exciting Features of Book of Brawlers Slot Explained

Wilds are marked WILD and substitute in the base game. Free Games with Expanding Symbols land from 3+ Scatters, awarding 10 spins. A special expanding symbol is picked at the start and can cover reels when a win is possible. During this mode, the chosen symbol pays in adjacent and non-adjacent positions, which is where the slot opens up. This is the heart of Book of Brawlers, and my better rounds have come from solid mid and premium expansions.

Retriggers are in play, so extra Scatters during Free Games bring more spins and more shots at full-screen moments. If I want in straight away, Bonus Pop lets me buy 10 Free Games, which is handy when I’m chasing a run of expansions. The feature timing feels fair for the volatility bracket; dry spells happen, but the upside sits there waiting for the symbol pick to line up across the grid.

After any win, the Risk Game gives a punt: pick one of four face-down cards; if mine beats the Dealer, the payout doubles. I can repeat up to ten times, but I treat it as a light press rather than a habit. It’s a tidy way to squeeze extra value from smaller hits, though I cap attempts when I’ve met my target. For me, disciplined use keeps the bankroll rhythm steady.

Book of Brawlers Paytable and Symbols

The paytable follows a book-style spread. The Scatter/Wild pays up to 500x for five, while the top premium reaches 200x for a five-of-a-kind, with 0.5x for two. Mid symbols top out at 75x, and lower royals pay up to 10x, with typical steps at 2.5x and 0.5x. There are 10 fixed paylines, paying left to right. During Free Games, the chosen expanding symbol pays in non-adjacent positions, which is where I’ve seen the grid swing from modest lines to board-filling payouts.

Book of Brawlers Symbols and Paytable

Symbol	Quantity	Payout
	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
	5	x10
	4	x2.5
	3	x0.5

Comprehensive Review: Book of Brawlers Slot

Book of Brawlers carries a sharpened combat vibe: brawler portraits, bold colour, and audio hits that match the action. The interface is tidy, so I can track lines, bets, and feature states without faff. I like how the expanding symbol animation holds a beat before the payout count; it gives that small adrenaline kick when three or more are on show. The whole package feels energetic without clutter, which helps long sessions.

Maths-wise, it’s a balanced model with proper swings. Base play holds interest with wild connections, but the real step-up sits in Free Games, especially when retriggers drop. Bonus Pop is a direct route if I’m time-short. The 5,000x ceiling is enough to keep me leaning in during a dry patch. On mobile or desktop, the pacing stays crisp. If you like ten-line books with a fight theme, this one earns a place in the rotation.