River of Styx Slot Review

⭐ 6.5/10
Create by: Pragmatic Play
Review by:
Posts by Michael White
Updated: December 1, 2025

River of Styx is a Above average volatile slot from Pragmatic Play with an RTP 96.6% and up to x21100 maximum win. Play demo for free.

River of Styx Slot Demo

Software
Release Date
2024-05-18
RTP
96.6%
Max Win
x21100
Volatility
Above average
Bet Range ($,€,£)
0.20 - 125
Number of Reels
6
Features
Bonus Bet, Bonus Buy, Cascading Reels, Gems, Multiplier, Scatter Pays

The River of Styx Slot Game

When I first loaded River of Styx, I was thrown straight into ancient Greece, right on the banks of the underworld river that cuts through Hades’ territory. A ghostly boatman glides beside the 6 by 5 reels, his craft piled with glowing skulls, and the whole scene feels ominous without being overdone. The controls sit beneath the grid in that familiar Pragmatic layout, so I could settle in quickly and focus on the action.

I kept the soundtrack on, because the eerie music and background effects helped sell the idea of crossing a river of dead souls. Visually, River of Styx looks clean and sharp on both desktop and mobile, with clear symbol art and smooth tumbles when wins land. It is not the most complex setup I have seen, yet the scatter pays system gives it a punchy style that suits longer grinding sessions.

River of Styx slot screenshot

Symbols and Payouts in River of Styx

Once I headed to the paytable, River of Styx laid out a straightforward set of 10 symbols built around gemstones, underworld trinkets, and the boat that ferries souls. Instead of paylines, the slot uses scatter pays, so symbols pay anywhere on the grid. As long as I hit at least eight matching symbols at the end of a spin, the game awarded a prize based on my total stake for that round.

The low paying end of River of Styx is made up of Purple, Green, Blue, Turquoise, and Red gemstones. Landing eight or more of a kind across the reels paid up to 2x, 4x, 5x, 8x, and 10x my bet in that order, which felt fair for a scatter system. They pop up often enough during base play that I could keep the balance ticking over while waiting for bigger hits.

The premium symbols in River of Styx are an Oil Lamp, an Hourglass, a Ring, and Persephone, the Queen of the Underworld. With eight or more matched, these can reach 12x, 15x, 25x, or a chunky 50x the total bet, so a full screen of Persephones during a hot streak really gets the heart racing. There is no wild symbol, but the Boat scatter pays up to 100x and opens the main feature.

Symbols and Paytable

Symbol Quantity Payout
icon 1 12+ x50
10+ x25
8+ x10
icon 2 12+ x25
10+ x10
8+ x2.5
icon 3 12+ x15
10+ x5
8+ x2
icon 4 12+ x12
10+ x2
8+ x1.5
icon 5 12+ x10
10+ x1.5
8+ x1
icon 6 12+ x8
10+ x1.2
8+ x0.8
icon 7 12+ x5
10+ x1
8+ x0.5
icon 8 12+ x4
10+ x0.9
8+ x0.4
icon 9 12+ x2
10+ x0.75
8+ x0.25
icon 10 6 x100
5 x5
4 x3
icon 11 Wild

River of Styx Slot Bonus Features

River of Styx uses a tumble feature after every winning spin. Any paying symbols vanish, the remaining icons slide down, and fresh ones fall from above to fill the gaps. These cascades can run for a while on a good board, and each new drop is treated as part of the same paid spin. I enjoyed seeing a modest trigger suddenly snowball into several extra wins without placing another wager.

The free spins round in River of Styx starts when at least four Boat scatters land anywhere, awarding 10 spins and another five whenever three or more scatters appear during the feature. In these rounds, multiplier symbols drop in, each with a random value between 2x and 100x applied to the tumble sequence. There is also an ante bet that raises the stake from 20x to 25x, plus a separate buy feature.

How to Win at River of Styx Slot

To win on River of Styx, I only had to focus on stacking symbols anywhere on the 6 reel, 5 row grid rather than chasing fixed lines. Any spin with eight or more matching icons paid, and the tumble mechanic could turn that into a long chain without extra cost. Stakes range from 0.20 to 125 per spin, controlled through the usual plus and minus buttons, with single spin, autoplay, and turbo options on hand.

River of Styx Slot RTP & Volatility

RTP in River of Styx sits in that variable bracket developers like to use, with figures quoted between 96.49 percent and 96.60 percent depending on setup. That puts it slightly above many standard releases and felt fine across longer sessions. Volatility is described as medium to high, and from my experience that rang true, with patches of dead spins offset by bursts of tumbles and the odd chunky free spins payout.

With a stated maximum win of around 21,100 times the stake, River of Styx has enough punch for bonus hunters who like chasing that one big hit. In practice, most of my better results came when several multiplier symbols landed together in the free spins and stacked on a strong tumble. This is not a slot that showers small wins every spin, so I prefer to bring a balanced bankroll and some patience.

River of Styx slot screenshot

The Concluding Verdict on River of Styx

My verdict on River of Styx is mixed yet positive overall. The base game can feel bare bones, as you are mostly leaning on regular scatter wins and the tumble mechanic while waiting for scatters to line up. Free spins change the mood sharply, though, especially when multipliers drop in and pile up across a good cascade. Combined with solid visuals and that eerie theme, it kept me engaged despite the swingy variance.

Screenshots

River of Styx slot screenshot 1
River of Styx slot screenshot 2
River of Styx slot screenshot 3
River of Styx slot screenshot 4
River of Styx slot screenshot 5
River of Styx slot screenshot 6
River of Styx Final Ratings
Theme & Symbols








Sounds & Music








Bonus Features








RTP (96.6%)








Max Win (x21100)








Originality








FAQs About River of Styx

Can I play River of Styx free slot?

Absolutely! You can enjoy River of Styx for free on our website without registration. Our partner casinos of Pragmatic Play also usually offer demo mode access.

Can I win real money on River of Styx slot?

Yes, to win real money in River of Styx, you'll need to create an account at a licensed casino site. You can then play for real and win up to x21100.

Can I play River of Styx slot on mobile phone?

Yes, River of Styx is fully optimized for mobile devices and runs smoothly on any devices.

Compare River of Styx With Other Slots

Slot Rating Software Release Date Volatility RTP Bet Range Max Win Number of Reels Number of Betways
River of Styx 6.5 Pragmatic Play 2024-05-18 Above average 96.6% 0.20 - 125 x21100 6
Starlight Princess Pachi 5 Pragmatic Play 2024-05-20 High 96.04% | 95.04% | 94.04% 0.20 - 250 x5000 3 27
Heroic Spins 6.3 Pragmatic Play 2024-05-23 High 96% | 95.4% | 93.99% 0.20 - 240 x10000 5 20
Revenge of Loki Megaways 8 Pragmatic Play 2024-05-30 High 96.51% | 95.50% | 94.49% 0.20 - 240 x10000 6 117649
The Green Sun 6.5 Pragmatic Play 2024-06-02 High 96.50% 0.20 - 125 x5000 6
Sweet Bonanza 1000 8.8 Pragmatic Play 2024-06-03 High 96.53% | 95.52% | 94.51% 0.20 - 240 x25000 6
Wildies 6.5 Pragmatic Play 2024-06-06 High 96.01% | 95% | 94% 0.25 - 250 x7500 5 25
To Peiratiko Multihold 6.5 Pragmatic Play 2024-06-12 High 96.06% 0.20 - 100 x9000 5 20
Medusa’s Stone 7 Pragmatic Play 2024-06-13 High 96.46% | 95.54% | 94.50% 0.20 - 240 x7000 5 20
Buffalo King Untamed Megaways 8.7 Pragmatic Play 2024-06-20 High 96.02% | 95.01% | 94% 0.20 - 240 x10000 6 86436
Puffers Vs Sharks 6.5 Pragmatic Play 2024-06-22 High 96.07% 0.10 - 100 x15000 5 15
Mahjong Wins 2 7.5 Pragmatic Play 2024-06-24 High 96.50% 0.20 - 240 x100000 5 2000
Hand of Midas 2 7.7 Pragmatic Play 2024-06-27 High 96.07% | 95.05% | 94.06% 0.20 - 240 x8000 5 20
Rise of Pyramids 6.5 Pragmatic Play 2024-05-16 Average 95.97% | 95% | 94% 0.20 - 250 x5000 6
Mr Tain’s Fury: Wild Wild Gladiator 6 Pragmatic Play 2024-05-15 High 96.77% 0.25 - 150 x4600 5 576
Dwarf & Dragon 6.5 Pragmatic Play 2024-05-13 High 96.59% | 95.54% | 94.53% 0.20 - 240 x14000 5
The Conqueror 7 Pragmatic Play 2024-05-10 High 96.07% 0.10 - 100 x5000 6
Heart of Cleopatra 8.7 Pragmatic Play 2024-05-06 High 96.48% | 95.50% | 94.50% 0.20 - 240 x10000 7
Fruity Treats 6.5 Pragmatic Play 2024-05-02 High 96.05% | 95.07% | 94.04% 0.20 - 240 x5000 7
Monkey King Rush 6.5 Pragmatic Play 2024-05-02 High 96.50% 0.20 - 100 x5000 7
Candy Blitz Bombs 6.3 Pragmatic Play 2024-04-29 Average 96.49% | 95.53% 0.20 - 240 x5000 6
Release the Bison 6 Pragmatic Play 2024-04-25 High 97.49% | 96.54% | 95.48% 0.20 - 240 x3000 5 20
Rise of Montezuma 6.5 Pragmatic Play 2024-04-20 High 96.08% 0.20 - 240 x10000 6
Barnyard Megahays Megaways 7.5 Pragmatic Play 2024-04-18 High 97.50% | 96.50% | 95.50% 0.20 - 240 x10000 6 117649
Ice Lobster 6.5 Pragmatic Play 2024-04-11 High 96.06% | 95.06% | 94.03% 0.20 - 240 x5000 5 20
Spirit of the River Scientific Gaming 2021-08-31 High 96.7% 0.20 - 50 x5000 4
River Queen 6 Greentube 2015-08-15 Average 95.26% 0.50 - 100 x1421 5 50
Hades River of Souls 7 Fantasma Games 2020-06-09 High 96.56% 0.20 - 50 x5000 5 10
Black River Gold ELK Studios 2020-05-05 High 96.1% 0.2 - 100 x5000 6 4096