River of Styx (Pragmatic Play) – Review & Demo Play

The River of Styx Slot Game

Pragmatic Play sends me across ancient Greece in River of Styx, a 6x5 scatter pays slot where wins land anywhere from 8 or more matching symbols. The set-up feels eerie, from the ferryman on the right to the glowing skulls, and the soundtrack fits the ride. Tumbles carry the base game, clearing winners and dropping fresh icons. There are no wilds. The buy feature and an ante option sit by the reels, and stakes run from 0.20 to 125 for a wide testing ground.

Symbols and Payouts in River of Styx

River of Styx lines up ten symbols that feel on-theme. The lows are Purple, Green, Blue, Turquoise, and Red gemstones worth up to 2x, 4x, 5x, 8x, and 10x the stake for 12 or more. High pays step up with the Oil Lamp at 12x, Hourglass at 15x, the Ring at 25x, and Persephone at 50x for top clusters. Values reflect the total bet, so scaling your stake shifts the table in a very direct way.

The pays-anywhere system runs the show in River of Styx, paying when at least eight identical symbols appear, with improved awards at 10 and 12 plus. There is no wild to stitch wins together. The Boat scatter is present on all reels and does heavy lifting, as four, five, or six in view pay 3x, 5x, or 100x the bet whilst also triggering the bonus when four or more land during a single spin.

River of Styx Symbols and Paytable

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

River of Styx Slot Bonus Features

The tumble feature fires after every winning spin in River of Styx. Paying symbols disappear, remaining icons drop down, and new ones fall from above to fill the gaps. These cascades can chain for as long as fresh wins keep arriving. It gives the base game its tempo, with bursts of hits followed by lulls, and it pairs well with the pays-anywhere maths where wide spreads of the same icon can turn a modest start into a tidy return.

Free spins carry an extra layer in River of Styx thanks to the multiplier symbol. When it lands, it holds a random value from 2x up to 100x and stays present for the length of the current tumble sequence. If more arrive, their values add together. After the cascades finish, the game multiplies the total sequence win by the sum of every multiplier on screen, which can escalate a routine screen into a head-turner if the timing lines up.

I found the feature set focused yet punchy in River of Styx. The base relies on tumbles and scatter pays without side modifiers, so momentum basically comes from those avalanche chains. The bonus round is where things open up, with that multiplier package doing the heavy lifting. When multipliers stack and drop at the right time, screens that looked ordinary suddenly matter. If they don’t, it can feel dry, which is typical for medium to high variance builds.

Free Spins in River of Styx

Four or more Boat scatters trigger 10 free spins in River of Styx. During the bonus, three or more scatters add a flat +5 spins each time they land. The special multiplier symbol becomes active here, dropping values between 2x and 100x, sticking for the length of each tumble, and adding together before applying to the full sequence win. Special reels are in play, so symbol distribution feels a touch different compared to the base rounds.

Ante Bet and Bonus Buy in River of Styx

The ante bet in River of Styx nudges the stake model from the usual 20x to a 25x bet multiplier. In return, scatter frequency rises, making natural bonus entries more common during standard play. It does not change symbol pays. I tend to flip it on for sessions where I’m chasing bonus data, then switch it off if I want a purer base experience. It cannot be active at the same time as the purchase option.

The buy feature in River of Styx costs 100x the total stake and takes you straight into free spins. It is handy when testing strategies or checking volatility bands without waiting on scatters. When the buy is active, the ante bet is disabled, and vice versa, so you need to pick your path. I used both during my time with the slot, but for balance I preferred the ante switch whilst grinding and the buy for quick sampling.

River of Styx Slot RTP and Volatility

River of Styx ships with variable RTP, published at 96.49% to 96.60%, and a medium to high volatility profile. The top win reaches 21,100x the stake, so the ceiling is there, but the ride can feel swingy as the maths leans towards bonus-driven peaks. On my runs, the base delivered stretches of small rolls with occasional lifts, then the free spins decided the session. Factor in your bankroll, as bet steps from 0.20 to 125 can tempt overreach.

The Concluding Verdict on River of Styx

My feelings on River of Styx sit in the middle. The base game is fairly bare, leaning on cascades and scatter pays to keep things moving, which can be fine for spins on the sofa but won’t thrill every time. Once the free spins land, the multiplier game gives it teeth, and that is where I saw the slot shine. Stacks of 2x to 100x values cleaning up a long tumble can rewrite a screen in style.

The presentation is tidy and the payout model feels fair for a medium to high build, though big hits did not drop often for me. If you fancy scatter pays with proper headroom, this is well worth a punt. I’ll keep it in rotation when I want a Greek backdrop with sharp multipliers and simple play. Newcomers can learn the ropes fast, while experienced players will squeeze the most out of ante sessions and timed buys.