Return to player (RTP)
96.53%
Minimum bet size
0.10
Game category
Video Slots
Volatility
High
Number of reels
5
Progressive jackpot
No
Popularity
Maximum bet size
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 scheduled to arrive in September 2026, and its structure may seem familiar to anyone who has played Zeus vs Hades. In Evan Carrington’s Al Buraq Regina review, Ra is framed as the high-volatility option, while Osiris is for players willing to face even harsher 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 |
| Grid / 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 gives the two modes a distinct feel. The god-battle concept comes across more clearly here than in Zeus vs Typhon, where the presentation could seem cluttered. Ra mode brings a red-and-gold desert setting; Osiris shifts the screen to a neon-green underworld. Each mode also has its own soundtrack.
Top Casinos to Play Ra vs Osiris:
How Ra vs Osiris Plays – Base Game
The base game has 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 packs in plenty: mode selection, expanding wilds, a gamble wheel, special bets, and Bonus Buy. However, the review says it spent most of its 400 spins in the base game rather than in bonus rounds.
Ra Mode vs Osiris Mode
You choose a mode before the first spin, and that choice meaningfully changes how the game plays:
- Ra Mode: Free spins appear more often, but typical payouts are lower. Theoretical RTP: 96.53%.
- Osiris Mode: The bonus can be hard to trigger, but its hits may be stronger when it does appear. Theoretical RTP: 96.54%.
The review logged 200 spins in each mode: Ra triggered the bonus twice, while Osiris did not trigger it at all. With the RTP difference effectively negligible, the choice comes down to whether you prefer to endure long dry spells or take the harsher route.
Expanding Wilds with Multipliers
A VS wild may expand to cover an entire reel, but only if the expansion 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 multiple expanding wilds contribute to the same win, their multipliers are added together.
According to the review, this feature generated most of the session’s larger wins. An x1000 multiplier is technically possible, but the recorded results were mostly between x2 and x10.
Free Spins & Gamble Wheel
Landing 3, 4, or 5 Scatters triggers 6 free spins. The number of Scatters collected sets the feature’s minimum wild multiplier: x2, x4, or x8.
A gamble wheel appears before the free spins begin. You can risk the entire feature to raise its minimum multiplier as high as x100, but landing on red forfeits the bonus.
During free spins, expanding wilds stay in place and move one reel to the left after each spin. They create respins until they leave the screen, keeping their multiplier active the whole time.
The review’s gamble-wheel attempts had mixed results. The first was played safe and returned 8.60x the bet; the second was gambled, and the entire feature was lost.
Special Bets (Super Spins)
For an immediate feature at an extra cost, players can choose one of the Super Spins:
- Super Spin 1: Guarantees one expanding wild at x20 the bet in Ra or x40 in Osiris.
- Super Spin 2: Guarantees a wild with a minimum x8 multiplier at x100 in Ra or x200 in Osiris.
- Super Spin 3: Guarantees a wild with a minimum x100 multiplier at x1,000 in Ra or x2,000 in Osiris.
The review reports trying Super Spin 3 three times, spending close to 3,000 EUR in total and getting around 1,900 EUR back. Paying for a wild does not ensure it lands in a useful position, so the reviewer saw this as a significant risk with an uncertain outcome.
Bonus Buy
The game also offers a direct way into the feature for players who do not want to wait for Scatters:
- 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 the 250 EUR Super Bonus purchase returned just x111.40. A guaranteed multiplier does not guarantee useful symbols, and results in another player’s session may differ from the review’s poor outcome.
What to expect when playing
The review played 200 spins in each mode at 1 EUR per spin. Free spins triggered twice in Ra mode, with the better round paying 8.60x; in Osiris mode, the bonus did not appear in 200 spins.
The base game can deplete a balance quickly. The review experienced Ra-mode dry spells lasting 20 to 30 spins and Osiris stretches of up to 50.
The session’s biggest win, 319.20x, came from the base game rather than a bonus. Two expanding wilds on reels 2 and 3 carried x10 and x7 multipliers.
This slot is aimed at players with a substantial bankroll and considerable patience. The review cautions 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 RTP is 96.53% in Ra mode and 96.54% in 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 particular session.
Volatility is extreme. Your balance may drop over many spins with no return, followed by one expanding wild that dramatically changes the result.
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 mode and 100,068.60 EUR in Osiris mode.
Mobile performance
The review describes a short session on Chrome mobile as fast, with no lag and responsive touch controls. Reels fit reasonably well in portrait mode, though multiple multipliers make the text harder to read. The bright red and green colors may feel harsh on a small screen; lowering the display brightness could help.
How Ra vs Osiris Compares – 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 pays both ways, random multipliers that combine, Super Free Spins with a progressive multiplier and bonus buy. |
Ra vs Osiris leads on advertised top prize, with its high maximum win and x1000 wild multipliers. Players looking for more frequent action may prefer Zeus vs Typhon, which has 2,048 paylines and pays both ways.
Zeus vs Hades sits between the two, retaining the dual-mode structure but using sticky wilds in free spins rather than wilds that expand as dramatically.
Verdict – Is Ra vs Osiris Slot Worth Playing?
Ra vs Osiris’ biggest strength is that the base game can produce large wins without a bonus. Its toughest feature is the chance of losing the entire free-spins round on the gamble wheel—even though the review describes a +60% chance of winning—if it lands on red.
This game is intended for experienced high-volatility players who understand the risks. Players who need frequent wins to stay engaged may want to choose another slot.
Evan Carrington brings more than 12 years of experience in the iGaming industry, specializing in online casino reviews, slot game analysis, and player safety assessments. Their expertise includes casino licensing, RTP, volatility, bonus terms, and withdrawal policies. Combining hands-on reviews with independent research, Evan provides clear, evidence-based coverage to help players understand gambling platforms, their features, and possible risks.
