Beast Below slot
Beast Below is a Hacksaw Gaming slot played on 5 reels, 4 rows and 14 paylines, set in the deep sea where a giant creature keeps watch over sunken treasure. Sirens carry the base game as wilds that stretch upwards with a multiplier attached. Of its two free spins rounds, Down Below sends Wild Divers along the reels on a limited supply of oxygen.
Editorial note: this guide explains how Beast Below works. Rules, features and payout figures are set by the studio and can differ between operators and game versions, so check the game’s information panel before you play. Slots are games of chance, and nothing here predicts results. Availability at Fortune Games can change.
Play Beast Below and similar games · 18+
New to Fortune Games? Join today and see our welcome offer for new players.
18+. New players only. Welcome offer and T&Cs.
Beast Below: key facts
| Studio | Hacksaw Gaming |
|---|---|
| Reels and paylines | 5 reels, 4 rows, 14 paylines |
| Maximum win | 10,000x stake |
| Top line payout | Anchor wild: 20x stake for five on a payline |
| Expanding Sirens | Wilds that expand to the top of the grid when part of a win, each with a 2x to 200x multiplier; multipliers in the same win are added together |
| The Sirens’ Call Bonus | Three FS symbols in the base game: 10 free spins with Sirens landing more often |
| Pink Sirens | In The Sirens’ Call, stay where they expanded with a 2x to 200x multiplier and shift one row each free spin until they leave the reels |
| Down Below Bonus | Four FS symbols in the base game: 10 free spins with Wild Divers |
| Wild Divers | Cover a whole reel with a multiplier of up to 200x; up to three on the reels at once, multipliers added together |
| Oxygen | Each Diver starts with three charges and uses one to move to a neighbouring reel; it leaves the reels at zero |
| Extra spins | Down Below: two FS symbols add 2 spins, three add 4. The Sirens’ Call: two FS symbols add 2 spins |
| Autoplay and turbo | Not available at sites licensed in Great Britain; UK rules require at least 2.5 seconds between the start of one game cycle and the next |
| Stakes | UK rules cap online slot stakes at £5 a spin, or £2 if you are 18 to 24 |
| RTP | Shown in the game’s information panel |
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
How Beast Below plays
Wins are counted along 14 fixed lines across the 5x4 grid, so this is a paylines game rather than one built on ways or clusters. The anchor wild pays the most of any symbol for a full line of five, and every Siren is wild too.
The base game belongs to the Sirens. A Siren is a wild, but it only grows when it is part of a winning line: then it stretches up its reel to the top of the grid and brings a multiplier with it. If two or more Sirens touch the same win, their multipliers are added together before the payout is applied. FS symbols do the work of a scatter, and how many of them land decides which of the two bonus rounds begins.
The Sirens’ Call Bonus
Three FS symbols in the base game open The Sirens’ Call with 10 free spins. Sirens turn up more often here than on ordinary spins, and the round adds Pink Sirens. Once a Pink Siren has expanded it does not vanish after the spin; it keeps its multiplier and moves one row along the reel with each free spin, staying in play until it slides off the grid. Two more FS symbols during the round add 2 spins.
Down Below Bonus
Four FS symbols in the base game lead to the Down Below Bonus, also with 10 free spins. Here the Wild Divers take over. A Diver always fills its whole reel and carries a multiplier, and up to three can be on the reels together, with their values added when they share a win. Each Diver starts with three Oxygen charges. At the start of a spin it can move to a neighbouring reel, using one charge, and its multiplier can change as it goes. With no oxygen left, it swims away. Two FS symbols add 2 spins and three add 4.
Beast Below compared with Wanted Dead or a Wild
Wanted Dead or a Wild is the Hacksaw game whose expanding wilds come closest to the Sirens. It runs on a taller 5x5 grid with 15 lines, and its VS symbols open into full wild reels that each carry a multiplier, much as the Wild Divers do here. The difference is where they turn up: Beast Below keeps its full-reel Divers for the Down Below round and gives its base game Sirens that only grow upwards as part of a win. Its maximum win is lower than that of the frontier game.
| Game | Grid and lines | Expanding wild | Maximum win |
|---|---|---|---|
| Wanted Dead or a Wild | 5x5, 15 paylines | VS symbols become full wild reels with a multiplier | 12,500x stake |
| Beast Below | 5x4, 14 paylines | Sirens expand upwards as part of a win, with a multiplier | 10,000x stake |
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
Beast Below at Fortune Games
Beast Below appears in the slots part of our lobby (18+), under the same name the studio gives it. The UK caps in the table apply to every player. There is no autoplay or turbo mode, as at every site licensed in Great Britain. Fortune Games has an app on the App Store and Google Play.
Frequently asked questions
What is the Beast Below slot?
It is an undersea adventure from Hacksaw Gaming that asks what beasts lurk below the murky depths, with a creature guarding sunken treasure at the heart of the story. Sirens are the wilds of the base game and of The Sirens’ Call, while the Wild Divers only appear in the Down Below Bonus, each one fully expanded to cover its reel.
How do the FS symbols decide which bonus round starts?
The count in the base game settles it. Three FS symbols lead to The Sirens’ Call, which builds on the multiplier Sirens of ordinary spins and makes them land more often. Four lead to Down Below, which swaps them for full-reel Divers that can travel from reel to reel. Both rounds start with 10 spins.
How long does a Wild Diver stay on the reels?
Its oxygen sets the limit. A Diver arrives with three full Oxygen Charges, and at the start of a spin it may move across to a neighbouring reel, which uses up one charge. The Diver vanishes once its oxygen reaches zero. Its multiplier, worth up to 200x, may also change when it moves.
Related guides
Checked on 3 November 2026 against Hacksaw Gaming’s game pages for Beast Below and Wanted Dead or a Wild, the SlotCatalog records for both games, the Casinos.com record for Beast Below, and the Gambling Commission’s stake-limit guidance and remote technical standards. How we research and check our guides: our editorial policy.