Beast Below Slot Review

Introducing Beast Below Video Slot

When I first sat down with Beast Below, it pulled me straight into its murky sea world. Hacksaw Gaming has gone for a 5x4 layout with 14 fixed paylines, packed with spiky sea creatures, anchors, sirens and a lurking beast in the background. Bets range from 0.10 to 100 per spin, and wins land when three or more matching symbols hit from the left across a line, so the structure feels familiar yet nicely tense.

The maths has that typical Hacksaw bite. Beast Below runs on a medium to high volatility model in standard play, with a default RTP of 96.29%, though operators can set lower versions. The headline win is 10,000x your bet, carried by Expanding Siren Wilds, the Siren’s Call free spins, the Down Below Diver bonus and a four-option Bonus Buy menu in permitted markets. It feels like a darker cousin of their other multiplier slots.

Theme & Design in Beast Below

Beast Below leans hard into its deep-sea horror theme, and it works. The reels sit over a grim seabed with twisted wreckage and faint shapes moving in the gloom, while the symbols mix card ranks with glaring mutant fish and a hulking Kraken scatter. The soundtrack uses eerie pads, bubbling effects and ghostly siren chants, so once the multipliers start dropping, the whole thing feels like a tense night dive where anything can surface.

Symbols & Payouts in Beast Below

Symbol-wise, Beast Below keeps things clear. The low pays are 10 to A, paying around 2x to 3x your bet for five-of-a-kind, while the strange sea creatures form the premium set and pay 5x to 10x your stake for five on a line, with the angler fish on top. The Anchor is the regular Wild symbol, appearing on all reels, substituting for standard icons and paying 20x your bet if you manage to line up five anchors on a payline.

On top of that you have the real stars. Turquoise Sirens in the base game and Pink Sirens in the Siren’s Call bonus are Expanding Wilds with multipliers from 2x up to 200x. They stretch upwards only when they help a win and you can have one Siren per reel, with their multiplier values added together when more than one connects. In Down Below, the Diver symbol becomes a full-reel Wild multiplier with three oxygen charges, also ranging from 2x to 200x, and you can see up to three of these reels working together.

Symbols and Paytable

Symbol	Quantity	Payout
	Wild
	5	x20
	5	x10
	4	x5
	3	x1.5
	5	x7.5
	4	x3.5
	3	x1
	5	x7.5
	4	x3.5
	3	x1
	5	x5
	4	x2.5
	3	x0.5
	5	x5
	4	x2.5
	3	x0.5
	5	x3
	4	x1.5
	3	x0.3
	5	x2.5
	4	x1
	3	x0.2
	5	x2.5
	4	x1
	3	x0.2
	5	x2
	4	x0.5
	3	x0.1
	5	x2
	4	x0.5
	3	x0.1
	Scatter

How to Play Beast Below Slot Machine

Getting started on Beast Below is straightforward. I set my stake with the arrow controls, anywhere between 0.10 and 100 per spin, then hit the main spin button to send the five reels whirring. There is an autoplay function for longer sessions, plus a menu where you can adjust sound, toggle turbo modes and open the paytable. That paytable is worth a quick scan, as it shows exactly how the Sirens, Divers and scatters behave.

From a gambling point of view, I treat Beast Below like any other medium to high volatility slot. I prefer a stake that lets me ride out quiet spells, because the game often feels base-heavy until a strong Siren hit or free spins land. If I am testing a new strategy, I run some sessions in demo first, looking at how often the Sirens appear and how the multipliers line up, then move to real money once I am comfortable with the swings.

Bonus Features in Beast Below

The whole slot orbits around Expanding Sirens. In the base game, turquoise Sirens act as Wilds that expand upwards if they can be part of at least one win, then reveal a multiplier between 2x and 200x. If two or more Sirens join the same line, their multipliers are added before applying to the payout. Hit three Kraken scatters and you move into the Siren’s Call bonus, starting with 10 free spins and a higher Siren hit rate.

During Siren’s Call, Pink Sirens join the pool. A Pink Siren lands already expanded, sticks on its reel and nudges one position upwards on each following free spin until it leaves the grid, carrying a multiplier that can also reach 200x. The regular turquoise Sirens still show up as expanding Wilds as well, and any mix of them can stack additive multipliers. Extra scatters here award +2 or +4 spins, so good setups can hang around for a while.

The Down Below bonus is where things get wild for me. Four scatters award 10 free spins and unlock Diver symbols. Each Diver expands to cover its reel as a Wild multiplier, starts with three oxygen charges, and may move to an adjacent reel at the start of a spin, using up one charge and rolling a fresh multiplier between 2x and 200x. Up to three Diver reels can sit on the grid together, with their values added on shared wins. Where allowed, a Bonus Buy menu lets you pay 3x, 50x, 120x or 200x your bet for Bonushunt spins, Siren spins, straight entry to Siren’s Call or direct access to Down Below.

Max Win, RTP, & Variance in Beast Below

On the numbers side, Beast Below hits a sweet spot for volatile play. The default RTP comes in at 96.29%, though casinos can run lower settings like 94.27%, 92.25% or 88.28%, so I always check the info screen before committing. Volatility sits around medium-high in the base game but spikes into very high territory with most Bonus Buy options. The maximum win is capped at 10,000x your stake, with hit rate estimates around one such win in eleven million spins.

Beast Below Online Slot - Final Verdict

After a lot of sessions, Beast Below has earned a permanent place in my rotation. The atmosphere is spot on, the Expanding Siren multipliers can explode out of nowhere, and both free-spin modes feel distinct. I like that the biggest multipliers appear in the base game as well as in bonuses, so you are never just waiting on scatters. Those 2x to 200x additive multipliers can turn a small line into a proper score.

The trade-off, as always with Hacksaw, is volatility and variable RTP. On the highest setting the game feels fair for its style, but lower configurations blunt the edge, so I avoid them. When I can access the Bonus Buy, I lean towards Down Below for the roaming Diver reels and stacked multipliers, though Siren’s Call has its moments too. If you enjoy darker slots with expanding Wild multipliers and real hit-or-miss swings, Beast Below is well worth a serious session.

From a grinder’s perspective, I treat this slot as a high-risk, high-reward option rather than a casual time-killer. It shines when you hit overlapping Sirens or Divers, especially on the early reels, and dead patches can be long. That said, when Beast Below wakes up, it has the power to rescue a session in a single spin, which is exactly the kind of edge-of-the-seat gameplay I look for in a Hacksaw release.

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