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Ra vs Osiris (Pragmatic Play) Slot Review & Demo

Pragmatic Play
4.0/5
VistaGamble Score
RTP
96.53%
Return to Player
Volatility
High
Variance
Max Win
25,000x
Per Spin
Paylines
15
Ways to Win

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Game Details

RTP
96.53%
Volatility
High
Max Win
25,000x
Min Bet
0.10
Max Bet
250
Paylines
15
Reels
5
Release Date
Sep 3, 2026
Updated 03 Sep 2026

Review

๐Ÿ—๏ธ Key Takeaways

  • Ra vs Osiris is a Pragmatic Play slot on a 5x5 grid with 15 lines, and before a single reel turns, it asks you to pick a side, with each god running the same game at a different pitch of risk.
  • Two clashing expanding wilds sit at the heart of every spin, and when more than one lands, their multipliers do not simply stack; they combine before the win is counted.
  • 3, 4, or 5 scatters open a six-spin bonus, but a gamble wheel stands between you and the round, offering to raise your starting multiplier or take everything away.
  • Inside the feature, the wilds stop expanding and start walking, dragging their multiplier across the grid spin after spin, and the round can climb toward a ceiling few base-game slots reach.
  • Two buy menus and three special bets shift their prices depending on which god you chose, so even the shortcuts wear the colours of your pick.
  • The maximum win is 25,000x the total bet, and the walking wilds are the engine built to chase it.

Two gods face each other across a burning grid, and the game will not begin until you choose between them. On one side, Ra blazes in gold and fire, a sun-crowned hawk wreathed in flame.

On the other, Osiris glows a sickly, beautiful green, the lord of the dead lit by underworld light. Above the reels their names lock together in a single word, VS, and the whole machine waits on your decision.

Pragmatic Play builds Ra vs Osiris around that choice, a five-reel slot where the player selects the volatility before playing. Pick Ra and the game runs at High volatility, triggering its bonus more often for smaller average wins.

Pick Osiris and it shifts to Very High, handing out the feature less often but paying more when it lands. The reels, the rules and the maths underneath stay the same, but the temperature changes completely.

The base soundscape is all tension and dust, deep ambient synth pads over echoing desert winds and a low rumbling drone that keeps the air thick with ancient threat. Then the mode you pick colours it.

Ra warms the mix with blazing, sun-soaked brass and rapid string swells, a sound of divine daylight and fiery aggression. Osiris darkens everything into a hypnotic, heavier tone laced with eerie choral undertones and minor-key arpeggios, the chill of the green underworld.

When the reels reward Ra, the hawk lets out a low growl.

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๐ŸŒ… First Impressions

The premium symbols are the gods themselves, a hawk-headed Ra and a green-skinned Osiris sharing the top tier, with a fiery lioness and a blue jackal just below. Then come a blue ibis and a snarling crocodile, twin cobras, and a scarab-and-scorpion pairing to round out the premiums, each redrawn to match whichever god you are playing.

The wild is a golden hieroglyphic tablet that substitutes for everything except the scatters and lands on every reel. Alongside it sit the two expanding wilds, a red VS for Ra and a green VS for Osiris, and these are the symbols that make the game move.

There are two scatters as well, a blazing sun and a green eclipse, and three of them are all it takes to open the door to the bonus.

โš”๏ธ Choosing Your God

The volatility choice is the game's defining idea, and it is genuinely a choice rather than a cosmetic toggle. Ra mode runs at High volatility with a base RTP of 96.53%, giving up the bonus more readily for steadier, smaller feature wins.

Osiris mode runs at Very High with a base RTP of 96.54%, holding the feature back but paying more heavily when it finally arrives. What does not change is the machinery.

Both modes share the same paytable, the same wilds, the same scatters, the same six-spin bonus, and the same walking-wild engine inside it. The differences are the skin, the trigger frequency, the average bonus win, and the prices on the buy and special-bet menus.

Everything mechanical is identical, so the decision is purely about how you want your risk served: warm and frequent, or cold and rare.

๐Ÿ”ด Ra: The Warmer Path

Ra is the god of the sun, and his mode plays like it. The grid burns red and gold, the score lifts into blazing brass and rapid string swells, and the maths behind the fire is High volatility with a base RTP of 96.53%.

In practice that means the bonus arrives more readily and the average feature win is smaller, so a session under Ra tends to move at a steadier pace with fewer brutal dry spells. His buy and special-bet prices are the cheaper of the two, the free spins costing 100x the bet and the super free spins 250x, which keeps the shortcuts within reach for a wider range of bankrolls.

Ra is the side to pick when you want the feature to keep coming, and you would rather not stake a fortune to reach it.

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๐ŸŸข Osiris: The Colder Path

Osiris rules the underworld, and his mode is built for patience. The screen shifts to a chilling green, the music drops into a hypnotic, minor-key hush threaded with eerie choral undertones, and the maths sharpens to Very High volatility at a base RTP of 96.54%.

The bonus comes less often here, but when it does the average win runs heavier, so Osiris rewards a deeper bankroll and a colder nerve. His prices climb to match, the free spins costing 200x and the super free spins 500x, with the special bets scaling up in kind.

Osiris is the side for players who can absorb the longer gaps between features in exchange for the bigger payouts waiting at the end of them. The clever part is that these are not two separate games.

The same reels, wilds, scatters, gamble and walking-wild engine sit beneath both, so switching sides changes the rhythm and the price of your session without asking you to relearn a thing.

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๐Ÿ”ฎ Expanding Wilds and Their Multipliers

The two VS symbols are the expanding wilds, and they appear on every reel in both the base game and the bonus. Whenever one lands and would form part of a win, it expands to fill its whole reel vertically, and the Ra-versus-Osiris clash decides its multiplier.

Two competing values are shown, one on Ra's side and one on Osiris's, and whichever god wins at random hands its value to the wild, drawn from a ladder running 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x, 15x, 20x, 25x, 50x, 100x, 250x, 500x, or 1000x. That multiplier applies to every winning combination the wild is part of.

The detail that gives the game its ceiling is what happens with more than one. If two or more expanding wilds join the same winning combination, their multipliers add together before boosting the win, so a pair of mid-ladder wilds can combine into something far larger than either alone.

๐Ÿ“Š RTP and Volatility

The headline figure depends on your god. Ra returns 96.53% and Osiris 96.54% in normal play, both a shade above the industry average, with the various buy and special-bet routes returning between roughly 96.51% and 96.58% depending on mode and option.

No entry path carries a meaningful penalty. The volatility ratings, High for Ra and Very High for Osiris, are backed by an unusually informative set of published frequencies.

The base game hits once every 6.76 spins, the free spins land at 1 in 204.76, the odds of a win above 1000x sit at 1 in 23,309, and the absolute maximum arrives just once in 7,250,580 spins. Those numbers tell the whole story: a base game that pays regularly enough to sustain a session, with the enormous outcomes locked deep inside the bonus.

For a sense of what a fraction of a percent really costs across a long session, our RTP guide breaks it down, while the volatility guide unpacks the gap between High and Very High, and the hit frequency guide puts a figure like 1 in 6.76 into practical terms.

๐Ÿ’Ž Symbols and Payouts

All values below are shown at a 1.00 base bet, and every payout is a multiple of that stake. Each symbol lists its return for five, four and three of a kind in that order.

High Paying:

  • Ra and Osiris: 20.00 / 10.00 / 2.00
  • Lioness and Jackal: 10.00 / 5.00 / 1.00
  • Ibis and Crocodile: 10.00 / 5.00 / 1.00
  • Cobras: 5.00 / 2.50 / 0.50
  • Scarab and Scorpion: 5.00 / 2.50 / 0.50

Low Paying (Card Royals):

  • A, K, Q, J, 10: 1.00 / 0.50 / 0.10 each

Special Symbols:

  • Wild (Golden Tablet): Substitutes for all symbols except the Scatter. Appears on all reels. Pays 20.00 / 10.00 / 2.00.
  • Expanding Wilds (Red VS and Green VS): Appear on all reels, expand the full reel and take a random multiplier from 2x to 1000x. Multiple wild multipliers add together.
  • Scatters (Sun and Green Eclipse): Land 3, 4 or 5 to trigger the bonus with a minimum multiplier of 2x, 4x or 8x respectively.

๐Ÿ’ฐ Betting and Wins

Bets run from 0.10 to 250 per spin, with the total built on a 10x multiplier of your chosen base value. The maximum win is capped at 25,000x the total bet across both the base game and the bonus, and reaching it ends the round on the spot, pays the win in full and forfeits anything remaining.

The route to that ceiling runs almost entirely through the wilds. The premiums top out at 20x for five gods, so four-figure and five-figure outcomes depend on stacked expanding-wild multipliers and, above all, the walking wilds inside the bonus.

The max win probability of 1 in 7,250,580 places the true top firmly in ultra-rare ground, but the combining multipliers keep the climb visible far more often than that figure alone suggests.

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๐ŸŽ Bonus Features

The whole game funnels toward one bonus round, but two things stand guard over it, a gamble that can raise your reward or wipe it out, and a walking-wild engine that turns the round into a moving chase. Here is how each works.

โ˜€๏ธ Triggering the Free Spins

Landing 3, 4, or 5 scatters awards 6 free spins and sets a minimum multiplier for the expanding wilds during the round of 2x, 4x or 8x respectively. That minimum is the floor every wild in the round is guaranteed to meet or beat, so the more scatters you land, the stronger the round starts.

๐ŸŽก The Gamble

Before the spins begin, a gamble wheel appears, split red and green, and offers a decision. You can collect the current minimum multiplier and start the round safely, or gamble to push it one rung higher up the ladder.

The gamble starts automatically from 8x and can be climbed toward a ceiling of 100x, with the live win chance for each step written on the screen. A winning gamble lifts the minimum a rung; a losing one costs you the entire round, so it is a genuine risk-and-reward moment rather than a formality.

๐Ÿšถ The Walking Wilds

Inside the round the expanding wilds change character. When one lands it still expands and takes a random multiplier, but it then becomes a walking wild, keeping that multiplier and moving one reel to the left on every subsequent respin, marching toward reel 1.

Each move triggers a fresh respin, and once a walking wild reaches reel 1 it leaves the grid. When several are present at once, respins continue until every one of them has walked off the screen.

Landing three or more scatters again during the round retriggers it for six more spins and raises the minimum multiplier further, climbing toward a 1000x ceiling across repeated retriggers.

๐Ÿ†š The VS Duel

The clash in the title is not just decoration, it plays out live on the reels. When the versus symbol resolves in the bonus, two competing multiplier values are shown, one on Ra's side and one on Osiris's, and the two gods duel to decide which applies.

Whichever god wins, at random, hands its multiplier to the win and to the walking wild that carries it across the grid. It means the same landing can resolve into a modest boost or a huge one depending on which deity prevails, keeping the god rivalry mechanically alive rather than purely thematic.

๐Ÿ’ณ Buy Feature and Special Bets

The shortcuts wear the colours of your chosen god. In Ra mode the standard free spins cost 100x the bet and the super free spins, with a walking-wild multiplier minimum of 8x, cost 250x.

In Osiris mode those same two buys cost 200x and 500x, reflecting the mode's heavier average payout. Every buy returns close to the base RTP, so the price reflects the mode's variance rather than a worse edge.

Three special bets sit alongside normal play and also shift by mode, each guaranteeing an expanding or walking wild on every spin. In Ra mode they run at 20x, 100x and 1000x the bet, with the higher tiers guaranteeing minimum multipliers of 8x and 100x.

In Osiris mode the same three tiers cost 40x, 200x and 2000x. Whichever god and tier you choose, the effect is a base game that never stops producing wilds, at a price scaled to the guarantee.

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๐Ÿค” Is This Slot For You?

Which god you kneel to comes down to how you play. Ra suits players who want frequent action and a gentler ride on the bankroll, the more forgiving pick for shorter sessions and smaller stakes.

Osiris rewards the opposite temperament, a deeper bankroll and the patience to sit through longer gaps for heavier feature wins. Newcomers are usually better starting under Ra to learn the rhythm cheaply, then crossing to Osiris once the appetite for bigger swings sets in.

Fans of Egyptian slots will feel at home, and if the setting draws you in, our Fury of Anubis review covers another of the studio's Egyptian slots built around a climbing multiplier and a bonus gamble. It is less of a fit for players who want a single settled maths model and would rather not be asked to choose, or for anyone who prefers a calmer base game, since both modes lean high and the all-or-nothing gamble asks a nerve not everyone enjoys.

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๐ŸŒŸ VistaGamble's Honest Assessment

Ra vs Osiris takes a familiar Egyptian multiplier slot and builds a genuine decision into its foundation, then backs it with a walking-wild engine strong enough to justify the theatre. Most of it lands cleanly, though a couple of the choices ask real nerve of the player.

โž• The Positives

  • Volatility as a choice: Letting the player pick High or Very High up front is a genuinely fresh idea, and it makes the two modes feel like distinct games rather than a single build with a slider.
  • Combining wild multipliers: Expanding-wild multipliers adding together rather than merely stacking gives the base game real spike potential from a single spin.
  • The walking-wild engine: Wilds that carry their multiplier across the grid spin after spin turn the bonus into a moving chase with escalating pressure.
  • The VS duel: Tying the win multiplier to a live Ra-versus-Osiris clash keeps the god rivalry mechanically alive instead of purely cosmetic.
  • Committed presentation: The red-Ra and green-Osiris skins, each with its own orchestral mood, give the game two distinct atmospheres from a single machine.

โž– The Negatives

  • The gamble bites: A single losing gamble before the round forfeits the entire bonus, which stings after working up to a strong starting multiplier.
  • Thin base paytable: The premiums pay little on their own, so a dry run without wilds can feel flat, especially in Osiris mode.
  • Choice can intimidate: Being asked to pick a volatility before understanding the game can overwhelm a newcomer who just wants to spin.
  • Steep Osiris buys: The 500x super buy in Osiris mode is a heavy outlay, and the top special bet at 2000x is firmly high-roller territory.
  • Bonus-weighted drama: With the biggest outcomes locked inside the walking-wild round, base play can feel like a waiting room between features.

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๐Ÿ”’ Conclusion

Ra vs Osiris is one of Pragmatic Play's more thoughtful Egyptian releases, taking a well-worn setting and giving it a real decision at its core. The choose-your-volatility hook is more than a gimmick, it genuinely reshapes the session, and the walking-wild engine gives both modes a bonus worth chasing.

The VS duel and the combining multipliers keep the god rivalry alive in the maths, not just the artwork. The rough edges come bundled with the ambition, an all-or-nothing gamble, a thin base game, and a decision some players will not want to make.

None of them undercut a slot that is polished, distinctive and mechanically sharp. For players who enjoy shaping their own risk and watching a multiplier march across the reels, this one repays a serious session, whichever god you kneel to.

The gods are waiting on your decision, so try Ra vs Osiris free in demo mode here on VistaGamble to test both sides without risk, then head to one of our partner casinos to pick your deity for real money. You will find the studio's wider catalogue on our Pragmatic Play provider page.

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Frequently Asked Questionsโ“

What is the RTP of Ra vs Osiris?

The base RTP is 96.53% in Ra mode and 96.54% in Osiris mode, with the buy and special-bet options returning roughly 96.51% to 96.58% depending on mode. The figures sit just above the industry average.

What is the difference between Ra and Osiris modes?

Ra mode plays at High volatility, triggering the bonus more often for smaller average wins, while Osiris mode plays at Very High, triggering less often but paying more. Only the skin, the odds, the average bonus win and the buy prices change, the mechanics are identical.

What is the maximum win in Ra vs Osiris?

The game caps at 25,000x your total bet, with a published probability of 1 in 7,250,580. Reaching the cap ends the round immediately and forfeits any remaining spins.

How do you trigger the free spins in Ra vs Osiris?

Landing three, four or five scatters awards six free spins with a minimum wild multiplier of 2x, 4x or 8x respectively. A gamble before the round can raise that minimum toward 100x, and retriggers during the round push it toward 1000x.

How do the walking wilds work?

During the bonus, each expanding wild takes a multiplier and becomes a walking wild, moving one reel to the left on every respin while keeping its multiplier. Each move triggers a respin, and the wild leaves the grid once it reaches reel 1.

Can you buy the bonus in Ra vs Osiris?

Yes, and the price depends on your mode. Ra mode offers the free spins for 100x and the super free spins for 250x, while Osiris mode offers them for 200x and 500x.

How we rate Ra vs Osiris (Pragmatic Play) Slot Review & Demo

4.0/5
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VG Rating 4.0
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Written By

Senior iGaming Auditor

Senior iGaming Auditor at VistaGamble, specializing in real-money stress tests and payout verification. A former consultant for Tier-1 operators, Kelia uses her deep data expertise to protect players from predatory terms and "stalling" tactics.