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A cartoon lion flexes in posing trunks while a synthwave beat kicks in. Beast Mode slot opens with an animated cutscene that sets the tone for everything that follows. 1980s Muscle Beach filtered through Relax Gaming’s house art style, complete with cop cars, neon gym signs, and a colour palette lifted straight from a VHS rental store. Underneath the visual swagger sits a 6-reel cascading game with three distinct free spins modes, a 500x multiplier ceiling, and a 25,000x max win.
Every winning combination destroys its symbols, and new ones fall in from above to fill the gaps. The cascade continues as long as new wins form. Multiple matching symbols on the same reel multiply payouts together, and the cascade chain is where most of the value builds during both regular play and free spins.
Triggers unpredictably during any non-bonus spin. When it fires, at least one mystery symbol is guaranteed to land. All mystery symbols on the grid reveal as the same paying symbol after each cascade, and the spin continues as long as wins keep forming (excluding wins made entirely of mystery symbols). After each cascade, the revealed mystery symbols reset, and new ones can appear. It’s a pacing feature more than a win generator, but it breaks up the rhythm of regular spins and can occasionally spark longer cascade runs.
Bonus symbols collect into a star meter. Three symbols trigger normal free spins. Four symbols skip straight to the upgraded variants. With three symbols, you also get a 50/50 gamble option to upgrade before the round begins. If the gamble fails, you return to the main game with any wins from the triggering spin intact.
All three modes play on the same 6×4 grid with cascading wins. The differences are in what happens around the cascades.
Six starting spins. Mystery symbols land on reels 2 through 5 and persist between spins, dropping to the bottom of the reels each time. After each cascade, every mystery symbol on the grid reveals as the same random paying symbol, then reverts for the next cascade. An Expand Bomb symbol on reel 6 opens an additional row on the four middle reels and awards 3 extra spins. The grid can grow to 7 rows high on reels 2 to 5, pushing the ways count to 38,416. Extra Spins symbols can land on any reel, adding 2 spins each. The upgraded version starts with 4 mystery symbols already placed on the grid.
Eight starting spins. A multiplier ladder runs above the reels from 1x up to 500x. The multiplier advances one step for every new spin after the first and for every cascade within a spin. At certain milestones, extra spins are awarded: 3 at 15x, 1 at 20x, and 2 at each of 50x, 100x, and 500x. Extra Spins symbols can land on any reel for 1 additional spin. The upgraded version starts with 9 spins instead of 8.
Seven starting spins. Wild symbols appear on reels 2 through 5 and expand downward, filling every position below them on the same reel. Every wild on the screen increases the global multiplier by 1x. Extra Spins symbols award 3 additional spins each. The upgraded version begins with a 10x starting multiplier instead of 1x.
Available during non-bonus play for 80x the bet. Takes you directly to the free spins selection screen with normal variants and the option to gamble for upgrades.
The default RTP for Beast Mode is 96.32% in regular play and 97.00% when using the Buy Feature. Some operators use adjusted settings, with 90.00% at the low end. The in-game help screen shows which RTP is active at the site you are using.
Four rows on six reels with a grid that can grow to seven during Mystery Symbol free spins gives Beast Mode a shifting architecture that most ways-to-win slots don’t offer. Wins form by matching symbols on adjacent reels from left to right, starting from the leftmost reel. Vertical position doesn’t matter. If the same symbol appears anywhere on consecutive reels, it counts. When multiple copies of a symbol land on the same reel, their contributions multiply together.
The stake window spans 0.10 to 40 per spin. The volatility sits at the extreme end, rated 5 out of 5 on Relax Gaming’s own scale. The hit frequency is 32.39%, meaning roughly one in three spins produces some kind of return, though most of those returns will be small relative to the bet. The max win caps at 25,000x total stake.
The table below is calibrated to a 1.00 total bet. Returns shift proportionally at any other stake level.
| Symbol | 6 Matches | 5 Matches | 4 Matches | 3 Matches |
|---|---|---|---|---|
| Lion | 25.00 | 10.00 | 4.00 | 1.00 |
| Boombox | 10.00 | 5.00 | 2.00 | 0.80 |
| Dumbbell | 7.50 | 4.00 | 1.50 | 0.70 |
| Roller Skate | 5.00 | 3.00 | 1.20 | 0.60 |
| Kettlebell | 2.50 | 1.50 | 1.00 | 0.50 |
| A / K / Q / J / 10 | 1.00 | 0.50 | 0.20 | 0.10 |
The Lion is the highest-paying symbol, returning 25x the bet for a full six-reel connection, but the real weight of the paytable comes from the cascading system. If multiple copies of the same symbol land on one reel, their payout is multiplied. Two Lions on a single reel within a six-reel connection do not just double the win, they increase the multiplied total. Wilds substitute for all regular symbols and can land on reels 2 to 6.
Beast Mode is the kind of slot that introduces itself with a roided-up lion and then actually backs up the attitude with depth. Three free spins modes with meaningfully different risk profiles, a cascading system that rewards extended chains, and a multiplier ladder that stretches to 500x. The visual commitment to the Muscle Beach theme ties it together without becoming a distraction. Relax Gaming and CasinoGrounds built something with replay value here.
Beast Mode loads with an animated cutscene. A cartoon lion in posing trunks, flexing against a backdrop of palm trees and police lights. It’s ridiculous, it’s committed, and it immediately signals that this game doesn’t take itself too seriously. The throwback electro soundtrack reinforces that atmosphere without becoming grating, and the graffiti-styled card symbols fit the Muscle Beach setting naturally.
During our review session, hits came at a reasonable pace. The 32.39% hit frequency means something lands roughly every third spin, though most of those wins are small cascade chains returning a fraction of the bet. The Random Mystery Spin fires occasionally and guarantees at least one mystery symbol on the grid, which can kick off longer cascade sequences. It acts as a pacing tool more than a win generator, but it breaks up the rhythm enough to keep attention locked.
The three free spins modes are where Beast Mode separates itself from the crowd. Each one plays differently enough that the choice feels real. Mystery Symbol mode trades lower starting spin counts for an expanding grid that can push to 38,416 ways. Multiplier Ladder mode offers a climbing multiplier that compounds with every cascade. Expanding Wild mode drops wilds that grow downward and boost a global multiplier with every wild on screen.
We bought into the bonus at 80x the bet and selected Expanding Wilds. The grid shifted to a nighttime scene. Seven spins. The result was 52.20 in returns on an 80-unit purchase. That’s the volatility contract laid bare. A 500x multiplier ceiling and 25,000x cap mean the feature can pay enormously, but the distribution is punishing. Most bonus rounds will underperform. A handful will overperform spectacularly.
The upgraded variants add meaningful edges. A starting multiplier of 10x in Expanding Wild mode changes the numbers on every cascade. Four pre-placed mystery symbols in the upgraded Mystery mode give that variant a running start. These aren’t cosmetic upgrades. They shift the expected value of each round noticeably. The 50/50 gamble to reach them from a 3-symbol trigger adds another decision point that most free spins triggers don’t offer.
Visually, the illustrations are crisp. The Lion, Boombox, Dumbbell, and Roller Skate icons read clearly at any grid size, which matters because the Mystery Symbol mode can expand the playing area considerably. The nighttime shift during free spins reinforces the transition into the feature without cluttering the screen. This was developed with the CasinoGrounds community, and the attention to small details shows throughout.
The demo provides full access to all three free-spin modes, the buy feature, and the Random Mystery Spin. Enough free play to form a clear opinion on which mode suits your style and whether the volatility profile fits your bankroll.
Skip the base game and go straight to free spins for 80x your bet.
Start now, or gamble for a x10 starting multiplier, a choice that changes the shape of the whole round.
A 52.20 return from an 80x buy-in is a fair example of how high volatility looks before the stronger rounds appear.