Ra vs Osiris Slot (Pragmatic Play)

The Ra vs Osiris slot is played on 5 reels, 5 rows and 15 paylines. Winning combinations are awarded when 3, 4 or 5 identical symbols appear on adjacent reels, beginning from the leftmost reel and across any of the 15 paylines. Only the highest win on each payline will be won. 

The minimum bet is 10p a spin, with the highest bet at £5 a spin for UK players (or up to £2 if under 25). Outside the UK, the max bet is £250 per spin. Non-UK players can also use 2 Turbo Mode settings and Autoplay (up to 1,000 auto spins).

The Ra vs Osiris RTP rate is 96.53% for Ra mode and 96.54% for Osiris mode, which is in line with other Pragmatic Play games but higher than the 96% slot game average. You may also encounter alternative RTP versions at slot sites so check within the Paytable at your chosen site. For context, below is the number of expected spins before you run out of money based on a £20 balance and playing at 10p a spin:

• 96.54%/96.53%: 5,752/5,735 spins
• 95.54%/95.53%: 4,462/4,452 spins
• 94.53%/94.52%: 3,639/3,632 spins

In terms of volatility there is a dual setup: Ra mode is high volatility whilst Osiris mode is very high volatility. With a winning combination every 1 in 6.76 spins, the hit frequency rate is 14.79%. To trigger the Free Spins feature, it will take 204.76 spins on average.

Finally, Ra v Osiris offers 25,000 x bet max win potential, with the max win probability at 1 in 7,250,580 spins. Winning 1,000 x your total bet or higher will take 1 in 23,309 spins, on average.

With an ancient Egyptian theme, the Ra vs Osiris slot is an epic ancient battle between Ra (the supreme sun god) and Osiris (god of the underworld, the afterlife and resurrection). When you fire up the game, you need to choose between the Kingdom of Ra and the Kingdom of Osiris.

The Kingdom you choose will have a bearing on the volatility level (high for Ra and very high for Osiris) as well as the graphics as Ra is dominated by red and Osiris by green. In both Kingdoms, you’ll see pyramids in the background. The soundtrack is identical in both modes.

On the reels, you’ll see A, K, Q, J and 10 royals in both modes. In the Ra mode, you’ll see scarab beetles, snakes, Bennu birds, lioness goddess Sekhmet and Ra. In the Osiris mode, there are scorpions, snakes, jackals, the crocodile Sobek and Osiris. Ra and Osiris are the best-paying symbols, awarding 20 x your total bet for 5 in combination.

With a Wild symbol that appears on all reels and substitutes for all paying symbols, Ra vs Osiris comes with VS Expanding Wilds with multipliers and Sun or Moon Scatters.

Ra vs Osiris Mobile

With HTML5 used, Ra vs Osiris is compatible with desktop, tablet and mobile devices: if playing on the latter, you can access the game using an iOS or Android smartphone. For the full visual experience, a laptop or PC is recommended.

With 2 modes, Ra vs Osiris focuses on VS Expanding Wild symbols with multipliers up to 1000x. In the Free Spins feature, expanded wilds act as walking wilds with respins and multipliers up to 1000x. Retriggers award more free spins and increase the minimum multiplier too.

Expanding Wild with Multiplier

Like in Eastern Fury, there is a VS Expanding Wild symbol. Substituting for all paying symbols, they can land on all reels. Paying up to 20 x bet, they expand if there would be any win after expansion.

Expanding to take over the whole reel, 2 multipliers between 2x and 1000x battle it out to reveal a winner. The winning multiplier applies to all winning combinations involving the wild multiplier reel. If multiple VS Expanding Wild symbols appear and are part of the same win, the multiplier values are added together.

Free Spins

In either mode, landing 3 or more Scatters will trigger the Free Spins feature with 6 free spins: 3, 4 or 5 Scatters will reward you with a minimum random multiplier for the VS Expanding Wild symbol of 2x, 4x or 8x, respectively.

Prior to the feature beginning, you can gamble to increase the minimum multiplier up to 100x for the expanding wilds or collect the current multiplier. Your odds of a successful gamble are highlighted on the screen. Losing the gamble will result in reverting back to the base game.

Once in, all expanding wilds act as walking wilds, shifting left with each respin until moving off reel 1. If more expanding wilds land, respins continue until all have left the reels. Landing 3, 4 or 5 Scatters will result in 6 additional free spins: every retrigger increases the minimum multiplier by 1, 2 or 3 levels, respectively, up to 1000x.

Super Spin & Bonus Buys

As with most slot games these days, you have Super Spin and Bonus Buy options. There are 3 Super Spin and 2 Bonus Buy options for each mode:

• Ra Mode Super Spin 1: costing 20 x bet, you are guaranteed expanding or walking wilds. RTP is 96.55%.
• Ra Mode Super Spin 2: costing 100 x bet, you are guaranteed expanding or walking wilds with a minimum 8x multiplier. RTP is 96.55%.
• Ra Mode Super Spin 3: costing 1,000 x bet, you are guaranteed expanding or walking wilds with a minimum 100x multiplier. RTP is 96.51%.
• Ra Mode Free Spins: costing 100 x bet, you enter the Free Spins feature. RTP is 96.55%
• Ra Mode Super Free Spins: costing 250 x bet, you enter the Free Spins feature with a mimum multiplier of 8x. RTP is 96.51%
• Osiris Mode Super Spin 1: costing 40 x bet, you are guaranteed expanding or walking wilds. RTP is 96.58%.
• Osiris Mode Super Spin 2: costing 200 x bet, you are guaranteed expanding or walking wilds with a minimum 8x multiplier. RTP is 96.54%.
• Osiris Mode Super Spin 3: costing 2,000 x bet, you are guaranteed expanding or walking wilds with a minimum 100x multiplier. RTP is 96.52%.
• Osiris Mode Free Spins: costing 200 x bet, you enter the Free Spins feature. RTP is 96.54%.
• Osiris Mode Super Free Spins: costing 500 x bet, you enter the Free Spins feature with a mimum multiplier of 8x. RTP is 96.52%.

Ra vs Osiris Slot

Rating: 4.2/5

Ra vs Osiris is similar to Zeus vs Hades – Gods of War but has an ancient Egyptian theme and swaps sticky expanded wilds in the free spins for walking wilds with respins for up to 25,000 x bet max wins.

Chris Taylor

Following other games such as Zeus vs Hades – Gods of War and Zeus vs Hades – Gods of War 250, the Ra vs Osiris slot takes you to ancient Egypt as opposed to ancient Greece. The first thing you need to do is choose between the 2 modes, with the volatility being high or very high with a slight difference in RTP and graphics.

With a focus on VS Expanding Wilds with multipliers, the gods battle it out for a multiplier up to 1000x. Things get interesting in the Free Spins feature as expanding wilds become walking wilds with the expanded VS wild shifting left with each respin until it walks off reel 1. If you see multiple expanding wilds on the same free spin, this is where the bigger wins will come from, especially if you get multipliers of 100x or higher.

With 25,000 x bet max wins, the Osiris mode is more lucrative than the Ra mode but your chances of winning decreases as a result. The max win figure can be achieved in both modes though. For non-UK players, the cost of the super spin and bonus buy options is double in Osiris mode compared to Ra mode so that should tell you where the bigger winning potential is.

When comparing to Zeus vs Hades – Gods of War and the ‘250’ version, Pragmatic Play has replaced sticky expanding wilds with walking wilds with respins. That said, Ra vs Osiris is a good game that swaps ancient Greece for ancient Egypt and tweaks the mechanics in the free spins from sticky expanding wilds to walking wilds with respins.

If you like the Expanding Wild with Multiplier feature, Hacksaw Gaming has a DuelReels mechanic that is similar and features in games such as Wanted Dead or a Wild. If it’s ancient Egyptian-themed slots you’re after, my guide looks at the top 10 games including Play ‘n GO’s Book of Dead, IGT’s Cleopatra and Hacksaw Gaming’s Hand of Anubis.

The Ra vs Osiris slot review was written by Chris Taylor from our OLBG Expert team who has written over 10,000 slot game reviews in an iGaming career spanning over 2 decades.

Chris Taylor

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Chris Taylor is an industry veteran originally from Gibraltar. Having worked in the online gambling industry since 2004, Chris loves slots and has reviewed over 10,000 online slot games. Running a slots-focused website for 13 years, Chris is the go-to guy for everything slots-related.