Ra vs Osiris - Demo & Slot Review

Ra vs Osiris uses a 5×5 grid with 15 fixed paylines. The highest RTP is 96.53% with Ra and 96.54% with Osiris, with lower versions also available. Volatility is high with Ra and very high with Osiris, the hit frequency is 14.79%, and the maximum win reaches 25,000x the bet. Bets range from 0.10 to 250.

The main mechanic is the VS Expanding Wild, which can cover a full reel and carry a multiplier of up to 1,000x. Free Spins turn these into Walking Wilds that move left through respins, while a pre-bonus gamble can increase their guaranteed minimum multiplier. Ra offers the more frequent route into the features, while Osiris trades frequency for heavier potential.

Ra vs Osiris

Before playing, you choose between Ra and Osiris.

Ra uses high volatility and triggers Free Spins more frequently, but the average bonus win is lower. Osiris increases the volatility to very high, with rarer bonuses but stronger average payouts.

The maximum win stays at 25,000x in both modes, so Osiris does not hide a bigger top prize. It simply takes a much rougher road toward it.

VS Expanding Wilds

A VS Wild can appear on any reel and substitute for regular paying symbols. If expanding it would create a win, it grows to cover the entire reel.

Two multiplier values between 2x and 1,000x are then revealed and battle against each other. The winning value sticks to the expanded Wild reel and applies to every win involving it. If several expanded Wilds contribute to the same win, their multipliers are added together.

The little VS battle is mostly presentation, but it fits the theme perfectly. Watching 500x square up against 4x also creates exactly the kind of unnecessary stress these reveals are good at.

Free Spins

3, 4 or 5 Scatters trigger 6 Free Spins with the following guaranteed minimum VS Wild multipliers:

• 3 Scatters triggers Free Spins with minimum 2x VS Wild multipliers.
• 4 Scatters triggers with minimum 4x.
• 5 Scatters triggers with minimum 8x.

Before the bonus begins, you can accept the multiplier or gamble it. Each successful gamble moves the minimum multiplier one level higher, potentially reaching 100x. Lose once and the whole Free Spins feature disappears.

During the bonus, expanded VS Wilds become Walking Wilds. They keep their multiplier and move one reel left on every respin until walking off reel 1. Respins continue while at least one Walking Wild remains on the grid.

Another 3, 4 or 5 Scatters award 6 extra Free Spins and raise the guaranteed minimum multiplier by 1, 2 or 3 levels. It can eventually climb all the way to 1,000x.

Special Bets and Feature Buy

Ra and Osiris have separate prices for their Super Spins and bonus buys.

With Ra:

• Super Spin 1 costs 20x
• Super Spin 2 costs 100x
• Super Spin 3 costs 1,000x
• Free Spins costs 100x
• Super Free Spins costs 250x

With Osiris, the same options cost 40x, 200x, 2,000x, 200x and 500x respectively.

The Osiris side gets expensive very quickly, but at least the higher volatility remains consistent all the way into the purchase menu.