Return to player (RTP)
96.53%
Minimum bet
0.10
Game category
Video Slots
Volatility
High
Number of reels
5
Progressive jackpot
No
Popularity
Maximum bet
250
Game Provider
Pragmatic Play
Bonus features
Yes
Paylines
15
Theme
Ancient Egypt
Ra vs Osiris Online Slot Review
Pragmatic Play revisits its god-versus-god format with Ra vs Osiris. The game is due to arrive in September 2026, and its structure may seem familiar to anyone who has played Zeus vs Hades. In Evan Carrington’s Casino Ideal review, Ra is presented as the high-volatility option, while Osiris is for players prepared for even more extreme swings.
Ra vs Osiris Slot Overview
| Provider | Pragmatic Play |
|---|---|
| Release Date | September 2026 |
| RTP | 96.53% (Ra Mode) / 96.54% (Osiris Mode) |
| Volatility | High (Ra Mode) / Very High (Osiris Mode) |
| Max Win | 25,000x the bet |
| Structure / Ways to win | 5 reels with 15 fixed paylines |
| Betting range | 0.10 EUR to 250 EUR |
Ra vs Osiris Slot Theme and First Impressions
Pragmatic Play makes the two modes feel distinctly different. The god-battle concept is more coherent here than in Zeus vs Typhon, where the presentation could feel cluttered. Ra mode gives the screen a red-and-gold desert look, while Osiris shifts it to a neon-green underworld. Each mode has its own music too.
Top Casinos for Ra vs Osiris:
How Ra vs Osiris Plays – Base Game
The base game features 15 fixed paylines across 5 reels. Winning symbols must match from left to right, starting on reel #1. The paytable for a 1 EUR bet is as follows:
| Symbol | 5 Matches | 4 Matches | 3 Matches |
|---|---|---|---|
 | 20.00x | 10.00x | 2.00x |
 | 20.00x | 10.00x | 2.00x |
 | 20.00x | 10.00x | 2.00x |
 | 10.00x | 5.00x | 1.00x |
 | 10.00x | 5.00x | 1.00x |
 | 10.00x | 5.00x | 1.00x |
 | 10.00x | 5.00x | 1.00x |
 | 5.00x | 2.50x | 0.50x |
 | 5.00x | 2.50x | 0.50x |
 | 5.00x | 2.50x | 0.50x |
 | 5.00x | 2.50x | 0.50x |
 | 1.00x | 0.50x | 0.10x |
 | 1.00x | 0.50x | 0.10x |
 | 1.00x | 0.50x | 0.10x |
 | 1.00x | 0.50x | 0.10x |
 | 1.00x | 0.50x | 0.10x |
 | 1.00x | 0.50x | 0.10x |
 | 1.00x | 0.50x | 0.10x |
 | 1.00x | 0.50x | 0.10x |
 | 1.00x | 0.50x | 0.10x |
 | 1.00x | 0.50x | 0.10x |
Ra vs Osiris Slot Bonus Features
On paper, Ra vs Osiris has plenty to offer: mode selection, expanding wilds, a gamble wheel, special bets and Bonus Buy. However, the review says most of its 400 spins were spent in the base game rather than feature rounds.
Ra Mode vs Osiris Mode
You choose your mode before the first spin, and that choice genuinely changes how the game works:
- Ra Mode: Free spins trigger more often, but typical payouts are lower. Theoretical RTP: 96.53%.
- Osiris Mode: The bonus can be hard to trigger, but its payouts may be stronger when it does. Theoretical RTP: 96.54%.
The review records 200 spins in each mode: Ra triggered the bonus twice, while Osiris did not trigger it. Since the RTP difference is negligible, the real choice is between tolerating long dry spells and taking the more punishing option.
Expanding wilds with multipliers
A VS wild can expand to cover an entire reel, but only if doing so contributes to a winning combination.
Once it expands, a brief battle animation between Ra and Osiris plays. Each god receives a random multiplier from x2 to x1000, and the winning god’s multiplier applies to every win on that line.
If more than one expanding wild contributes to the same win, their multipliers are added together.
The review says this feature accounted for most of the session’s bigger wins. An x1000 multiplier sounds dramatic and is technically possible, but most observed results were between x2 and x10.
Free Spins & Gamble Wheel
Landing 3, 4, or 5 Scatters triggers 6 free spins. The number of Scatters sets the round’s minimum wild multiplier: x2, x4 or x8.
Before the free spins begin, a gamble wheel gives you the option to risk the entire feature to increase that minimum multiplier as high as x100. If the wheel lands on red, you lose the bonus.
During free spins, expanding wilds stay in place and move one reel to the left after each spin. They trigger respins until they leave the screen, and their multiplier remains active throughout.
The review had mixed results with the gamble wheel. The first feature was played conservatively and paid 8.60x the bet; the gamble was taken on the second, and the entire feature was lost.
Special Bets (Super Spins)
If you want a feature right away and accept the additional cost, you can select one of the Super Spins:
- Super Spin 1: Guarantees one expanding wild for x20 the bet in Ra or x40 in Osiris.
- Super Spin 2: Guarantees a wild with a minimum x8 multiplier for x100 in Ra or x200 in Osiris.
- Super Spin 3: Guarantees a wild with a minimum x100 multiplier for x1,000 in Ra or x2,000 in Osiris.
The review says Super Spin 3 was tried three times, costing close to 3,000 EUR in total and returning around 1,900 EUR. Paying for a wild does not ensure it lands in a useful position, so the reviewer considered this a substantial risk with an uncertain result.
Bonus Buy
For players who would rather not wait for Scatters, there is also a direct way to enter the feature:
- Free Spins: 100x the bet in Ra mode or 250x in Osiris mode for the standard feature.
- Super Free Spins: 250x the bet in Ra mode or 500x in Osiris mode for a feature with a minimum wild multiplier of x8.
The reported 100 EUR Ra-mode purchase returned x191.30, while a 250 EUR Super Bonus purchase returned just x111.40. A guaranteed multiplier does not guarantee that the right symbols will appear, and the review’s disappointing result may differ from another player’s session.
What to expect when playing
The review played 200 spins in each mode at 1 EUR per spin. Free spins triggered twice in Ra, with the better round paying 8.60x; in Osiris, the bonus did not appear during 200 spins.
The base game can run through a balance quickly. The review encountered Ra-mode dry spells lasting 20 to 30 spins and Osiris spells lasting up to 50.
The session’s biggest win, 319.20x, came from the base game rather than a bonus. It was triggered by two expanding wilds on reels 2 and 3 with x10 and x7 multipliers.
This game is best suited to players with a substantial bankroll and plenty of patience. The review warns that a major hit may take a long time to arrive.
Win potential and volatility
Ra vs Osiris lists a maximum win of 25,000x the bet, higher than Zeus vs Hades at 15,000x and Zeus vs Typhon at 10,000x.
The stated RTPs are 96.53% for Ra and 96.54% for Osiris, slightly above the 96% often quoted for comparable slots. Over time, this implies a somewhat lower theoretical house edge, not a guaranteed return in any session.
Volatility is extreme. Your balance may drop spin after spin without a return, before a single expanding wild dramatically changes the outcome.
The review says it began with 100,000 EUR. After 200 spins in each mode at 1 EUR per spin, the reported balances were 100,211.70 EUR in Ra and 100,068.60 EUR in Osiris.
Mobile performance
The review describes a quick Chrome session on mobile as fast, without lag and with responsive touch controls. The reels fit reasonably well in portrait view, though multiple multipliers make the text harder to read. The bright red and green colours may also feel harsh on a small screen, so reducing brightness could help.
How Ra vs Osiris Compares with Other Slot Titles
The review sets it alongside two Greek-themed slots from the same developer.
| Game | Provider | Volatility | Max Win | Special Features |
|---|---|---|---|---|
| Ra vs Osiris | Pragmatic Play | High / Very high | 25,000x the bet | Mode selection, expanding wilds (up to x1000), free spins with walking wilds, gamble wheel and Bonus Buy. |
| Zeus vs Hades: Gods of War | Pragmatic Play | High | 15,000x the bet | Mode selection, expanding wilds (up to x100), free spins with sticky wilds and Bonus Buy. |
| Zeus vs Typhon | Pragmatic Play | High | 10,000x the bet | Split grid with wins both ways, random combined multipliers, Super Free Spins with a progressive multiplier and Bonus Buy. |
Ra vs Osiris has the biggest advertised top prize, with a high win cap and x1000 wild multipliers. Players who want more frequent action may prefer Zeus vs Typhon, which features 2,048 paylines and pays both ways.
Zeus vs Hades sits between the two, keeping the dual-mode structure but using sticky wilds in free spins that do not expand as dramatically.
Verdict – Is Ra vs Osiris Worth Playing?
Ra vs Osiris stands out because the base game can deliver big wins without reaching the bonus. Its toughest drawback is the possibility of losing an entire free-spins feature if the gamble wheel lands on red, despite its +60% chance of winning.
This slot targets experienced high-volatility players who understand the risks. Those who need regular wins to stay engaged may be better off with another game.
Evan Carrington brings more than 12 years of experience in the iGaming industry, with a focus on reviewing online casinos, assessing slot games and examining player safety. Their work covers casino licensing, RTP, volatility, bonus terms and withdrawal policies. Drawing on practical testing and independent research, Evan provides clear, evidence-based reviews to help players understand gambling platforms, their features and possible risks.
