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Beast Below (Hacksaw Gaming) – Review & Demo Play
Beast Below from Hacksaw Gaming play free demo version ▶ Casino Slot Review Beast Below ✔ Return (RTP) of online slots on August 2026 and play for real money✔
Introducing Beast Below Video Slot
Beast Below by Hacksaw Gaming places you in murky waters with a 5x4 layout and 14 paylines. Base play centres on Expanding Sirens that rise to the top if they can form a line, carrying additive multipliers from 2x to 200x. Anchors act as wilds and pay 20x for five. The mood is eerie yet playful, with spiky creatures and a lurking menace. Stakes span 0.10 to 100 per spin, and volatility sits around medium‑high, though feature selections can push the swings further.
Two free spins modes are on offer: The Sirens' Call with extra Sirens and a Pink Siren that nudges upward each spin, and Down Below with roaming Diver reels that carry multipliers and oxygen charges. FeatureSpins and full bonus buys are on offer where permitted, including BonusHunt, Siren FeatureSpins, The Sirens' Call, and Down Below. The headline potential reaches 10,000x your stake, so the game can hit hard when multipliers stack across a tidy payline.
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Theme & Design: Beast Below's Mysterious Underwater Adventure
The presentation in Beast Below is dark and cartoony, set around wrecks and shadowy shapes. Glowing eyes peer from the gloom, and the reel set feels like a porthole into unfriendly water. It's atmospheric without going full horror, helped by slick animations when Sirens expand and divers appear. Even routine line hits feel tense thanks to the soundscape and the way symbols quiver as wins tally. Background details flicker between bubbles and debris, keeping the sea bed alive without clutter.
Audio lands well too, with haunting melodies, piano touches, and bubble cues that rise during feature moments. The whole package ties theme to mechanics, so expanded wilds and roaming reels feel part of the same undersea tale rather than an afterthought. It's easy to settle in for a session because presentation feels consistent from the base game to both free spins. Nothing jars or breaks immersion when Sirens stretch or a Diver shifts position.
Symbols & Payouts in Beast Below
In Beast Below, 10 to A card ranks are the low pays, returning 2x to 3x your bet for five of a kind. Five sea creatures make up the highs, paying 5x to 10x for five. The Anchor is a standard wild and pays 20x for five on a line. Sirens are wilds that can expand and carry multipliers, with Yellow appearing in base play and Pink in free spins. Divers act as full‑reel wild multipliers in Down Below. Kraken scatters trigger features.
Symbols and payouts
| 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 |
How to Play Beast Below Slot Machine
Set a stake between 0.10 and 100 and spin the 5x4 grid with 14 fixed paylines. Wins land left to right from the first reel, needing at least three matching symbols on adjacent reels. You can use autoplay for a set number of spins and quick controls keep pace snappy. Check the paytable and feature pages to see how Expanding Sirens, Pink Sirens, and Diver reels work, plus how scatters trigger each free spins mode and how multipliers are added.
Bonus Features in Beast Below
Expanding Sirens in Beast Below act as wilds that stretch upwards to the top of their reel only when they help a win. Each shows a multiplier from 2x to 200x, and if more than one applies to the same line, the values are added first, then applied. Only one Siren can sit on a reel at once. This mechanic appears in base play and both free spins, with frequency rising in The Sirens' Call.
Three scatters start The Sirens' Call with 10 free spins. Here, Sirens land more often and the Pink Siren arrives already expanded, then nudges up one row on each spin until it leaves the grid, carrying multipliers up to 200x. Land two scatters for +2 spins or three for +4. Four scatters start Down Below with 10 free spins and Diver reels that expand, hold three oxygen charges, and may move to an adjacent reel, spending a charge as they shift.
Up to three Divers can be active, and their multipliers add together when part of the same win. Where allowed, the Buy Bonus menu offers four options: BonusHunt FeatureSpins at 3x your bet with a fivefold chance to hit a bonus; Siren FeatureSpins at 50x for at least two Sirens; The Sirens' Call at 120x; and Down Below at 200x. Top‑end RTPs for these sit around 96.27% to 96.32% depending on choice.
Max Win, RTP, & Variance in Beast Below
Beast Below runs a headline RTP of 96.29% in standard play, with alternative settings such as 94.27%, 92.25%, and 88.28% also used by some venues. Variance sits high to medium‑high, shifting further when you pick FeatureSpins or full buys. The max win is 10,000x your bet, achievable when multipliers stack cleanly across a paying line, either via clustered Sirens or a tidy mix of Diver reels and sticky Pink Sirens in free spins.
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Gallery of video and screenshots of the game
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All our content is written by our editorial team and checked before publication. We play the games ourselves, verify licences and withdrawal terms, and update every review as soon as something changes.
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