Ra vs Osiris

Slot Overview

Ra vs Osiris is a video slot from Pragmatic Play played across 5 reels, 5 rows and 15 paylines. Its defining point is the choice between two game modes, each running on its own maths. Ra mode carries an RTP of 96.53% and high volatility, while Osiris mode sits marginally higher at 96.54% and shifts into very high volatility, so wins there arrive less often but land with more weight behind them. Stakes begin at €0.10 per spin and reach €250.00, leaving room for cautious play and heavier bets alike. The maximum payout is 25,000x the bet, available in either mode.

Slot Theme

The artwork takes ancient Egyptian mythology as its starting point, and the two modes each get their own backdrop and symbol set. Ra mode places a temple among pyramids, washed in red and lit by fire pits, with gold 10-A figures joined by scarabs, pythons, birds, lions and Ra. Osiris mode redraws the same scene in neon green, with sky portals and drifting ghosts overhead. The 10-A figures stay, and the higher symbols become scorpions, snakes, crocodiles, wolves and Osiris. Each mode carries a soundtrack matched to its visuals.

Slot Bonuses & Features

Mode Selection: The mode chosen changes how the bonus performs. Ra mode triggers the Free Spins feature more often but returns less on average per round. Osiris mode reverses that trade: the feature arrives less frequently, though the average round pays more when it does.

Wild Symbols: Wilds land on any reel and stand in for every symbol other than the Scatter.

Expanding Wilds With Multiplier: These also land on any reel, in the base game and in Free Spins alike. If expansion would produce a win, the symbol stretches vertically over the full reel and takes on a random multiplier.

The available values are 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x, 15x, 20x, 25x, 50x, 100x, 250x, 500x and 1,000x. That multiplier is applied to every combination the Wild helps form, and when more than one Wild contributes to the same win, the multipliers are added together.

Free Spins: Hitting 3, 4, or 5 Scatter symbols triggers the feature with 6 Free Spins. The count of Scatters sets a minimum random multiplier of 2x, 4x or 8x respectively, applied to any Expanding Wild that hits during the round. Players may take the current value and begin, or gamble first for something higher.

The gamble spins a wheel that settles on a win or a lose position. A win pushes the minimum multiplier to the next value on the list, while a lose forfeits every Free Spin and closes the round. The gamble runs only as far as a 100x minimum multiplier, and the chance of winning each step is shown in the game beneath the wheel. Play begins once the current minimum is collected or the maximum has been reached.

Inside the round, every Expanding Wild doubles as a Walking Wild. It expands, draws its random multiplier, and the game respins, with the Wild stepping one reel to the left on each respin as it works towards reel 1. The multiplier assigned on the first landing travels with it. Reaching reel 1 sends the Wild off the grid and ends its respins. When several are on screen at once, respins continue until the last of them has gone.

Similar to the base game trigger, hitting 3, 4, or 5 Scatters during the round retriggers the feature for 6 more Free Spins. Each retrigger also advances the minimum multiplier by 1, 2, or 3 positions on the list, matching the number of Scatters. After the minimum reaches 1,000x, later retriggers deliver the 6 spins alone and the minimum stays put.

Special Bets: A bet multiplier is available in either mode, and each option changes how the game runs.

Ra Mode:

• Super Spin 1 Ra (20x). One Expanding Wild with a random multiplier is guaranteed on every spin, landing in a random position and expanding provided at least one winning combination results. It can turn into a Walking Wild. Theoretical RTP: 96.55%.
• Super Spin 2 Ra (100x). One guaranteed Wild per spin, this time with a random multiplier of x8 or better, expanding on the same condition. It can randomly become a Walking Wild, with respins continuing until it exits through reel 1, as in the Free Spins round. Theoretical RTP: 96.55%.
• Super Spin 3 Ra (1,000x). The guaranteed Wild carries a random multiplier of at least x100 and behaves as above. Theoretical RTP: 96.51%.

Osiris Mode:

• Super Spin 1 Osiris (40x). One guaranteed Wild per spin with a random multiplier, expanding if at least one winning combination results, with the option of becoming a Walking Wild. Theoretical RTP: 96.58%.
• Super Spin 2 Osiris (200x). The guaranteed Wild carries a minimum of x8, can become a Walking Wild, and the game respins until it leaves through reel 1. Theoretical RTP: 96.54%.
• Super Spin 3 Osiris (2,000x). The guaranteed Wild carries a minimum of x100 and follows the same respin behaviour. Theoretical RTP: 96.52%.

Buy Feature: The Free Spins round can be bought straight from the base game, with separate prices per mode.

Ra Mode:

• Standard Free Spins at 100x the total bet, RTP 96.55%
• Super Free Spins at 250x the total bet, all Expanding Wilds given a minimum multiplier of 8x, RTP 96.51%

Osiris Mode:

• Standard Free Spins at 200x the total bet, all Expanding Wilds given a minimum multiplier of 2x, 4x or 8x, RTP 96.54%
• Super Free Spins at 500x the total bet, all Expanding Wilds given a minimum multiplier of 8x, RTP 96.52%

Conclusion

Ra vs Osiris runs on two separate maths models, so the trade between how often the bonus lands and how much it returns is left to the player. Expanding Wilds carry multipliers as high as 1,000x and add together when several form part of the same win, while Free Spins turn them into Walking Wilds that respin across the reels. A gamble wheel sits ahead of the round, with six Super Spin options and four purchase prices across the two modes. The top payout is 25,000x the bet.