Beast Below Slot Review
Free demo, RTP, volatility and max win
8.1Value score · Very good · how it works
Beast Below review: Hacksaw Gaming's underwater payline slot with expanding Sirens and Divers, four RTP versions from 96.29% to 88.28%, 10,000x max win.
- #559by value of 3,708 slots
- #8by value of 36 Hacksaw Gaming slots
- #1237by RTP of 3,708 slots
Play Beast Below free: demo, no sign-up
Free play money from Hacksaw Gaming's official demo. 18+. No deposit and no account; a demo does not predict real results.
Basic information
| Software | Hacksaw Gaming |
|---|---|
| Release year | Not published |
| RTP | 96.29% | 94.27% | 92.25% | 88.28% |
| Volatility | Not published |
| Max win | x10,000 |
| Hit frequency | Not published |
| Reels and rows | 5 × 4 |
| Win system | Paylines, 14 paylines |
| Features | Bonus buy, Free spins, Ante bet, Paylines |
| Named in the rules | EXPANDING SIRENS, THE SIRENS' CALL BONUS GAME, DOWN BELOW BONUS GAME |
| Game type | Slot |
| Data verified | 2026-09-28 |
Source: Hacksaw Gaming game page; RTP database by toolsgambling.com (CC BY 4.0); image: Hacksaw Gaming promotional image from the official game page. How we collect data · Report a mistake
Beast Below review
The studio frames this one as a dive to the sunken treasure guarded by a beast. The game itself is a four-row, five-reel payline slot whose character is set by wild multipliers. Sirens expand up the reel, and in the two bonus rounds either a stronger Siren or an expanding Diver takes over. The part that deserves the most attention is the catalogue entry, which records four different RTP versions.
Four rows, five reels, 14 lines
Wins pay on 14 predefined lines, from the leftmost reel to the right, on adjacent reels. The same rules apply in the bonus games unless the studio says otherwise. Anything beyond that, such as symbol values, is in the paytable and not in the data we hold.
Expanding Sirens
Sirens are wild symbols. A Siren expands upward to the top of the reel, but only when the expanded symbol would be part of at least one winning combination. Each expanded Siren shows a multiplier that applies to the wins it is part of. If a win includes several Sirens, their values are added first and the total is then applied to the win.
Only one Siren can be on each reel at a time. In the base game only the Yellow Siren appears, which keeps the main game simpler than the bonuses.
Two bonus games, picked by scatter count
The number of free spin scatters landing together decides which round opens. Both start with 10 free spins.
The Sirens' Call
Three scatters trigger it. Sirens land more often than in the base game, and a Pink Siren joins in. Expanded Pink Sirens stay on their reel, but move up one row on every following free spin until they are gone. Their multipliers start at 2x and the list the studio shows runs past 25x, up to at least 50x.
Down Below
Four scatters trigger it. An expanding Diver turns a whole reel into a wild multiplier and stays for a limited number of later spins. Each Diver begins with 3 Oxygen Charges and is removed at the end of the spin in which its oxygen reaches 0.
Ante and bonus buy
The game offers an ante-style option and four bonus-buy choices. The studio text we hold does not state their prices, because they are filled in by the game at run time, so we do not quote any. If you use them, check the price on the buy screen first.
Four RTP versions
Our catalogue lists RTPs of 96.29%, 94.27%, 92.25% and 88.28%. The studio's rules page carries only a placeholder instead of a concrete figure, so the catalogue is our only source here. The headline is 96.29%.
The difference matters in money. The house edge goes from 3.71% to 5.73%, 7.75% and 11.72%. Per $1,000 wagered the average cost is $37.10 at the best version and $117.20 at the lowest. Across 100 spins at $1 that is $3.71 against $11.72, and at $5 it is $18.55 against $58.60. Volatility is not published. The max win is 10,000x the bet, or $2,000 at $0.20 and $50,000 at $5.
We cannot tell from the data which version a given site runs, so check the game's own information screen for the figure in use.
Similar games
Close matches on max win include Chaos Crew at 96.3%, Mighty Masks at 96.3% with High volatility, Eye of the Panda at 96.26% and Densho at 96.4% with High volatility. All of them list a 10,000x cap.
Pros
- Siren multipliers are added together when several land in one win
- Two distinct bonus games, each starting with 10 free spins
- Top RTP of 96.29% with a 10,000x max win
Cons
- Four RTP versions, with the lowest at 88.28% and an 11.72% house edge
- No volatility label is published
- Buy and ante prices are not stated in the data we hold
- No official free demo is listed in our catalogue
Verdict
Beast Below is a compact payline slot where the interest lies in wild multipliers and two bonus rounds. Everything depends on which version you play. At 96.29% the house edge is 3.71%, at 88.28% it is 11.72%, and no volatility is published, so the size of the swings is unclear. If you play, look for the RTP shown in the game itself and keep stakes modest.
Sources: Hacksaw Gaming official game page; RTP, volatility and max win from the open Slot RTP Database.
Slots like Beast Below
Beast Below RTP versions
4 RTP versions of Beast Below are recorded. Casinos choose which one to run, so the number you get depends on where you play. Each bar shows what that version keeps on average per $1,000 wagered.
- 96.29%Highest $37.10 lost per $1,000
- 94.27% $57.30 lost per $1,000
- 92.25% $77.50 lost per $1,000
- 88.28%Lowest $117.20 lost per $1,000
Cost of 100 spins
| Bet | Wagered | Average cost at 96.29% | At 88.28% |
|---|---|---|---|
| $0.20 | $20 | $0.74 | $2.34 |
| $1 | $100 | $3.71 | $11.72 |
| $5 | $500 | $18.55 | $58.60 |
Averages computed from the published RTP; real sessions vary widely around them. RTP calculator
Beast Below max win, volatility & stats
- Value score
- 8.1 / 10
- Lost per $1,000 (average)
- $37.10
- Max win at $1 bet
- $10,000
- Wins on average
- –
Percentiles compare this game with the 3,708 games in the catalogue. Max win: 10,000×.
