Rosh Immortality Cube Megaways is a highly volatile slot game powered by GameArt. It boasts up to 117,649 ways to win and plays out on a 6x7 grid. The game features cascading reels and comes with a variety of mystery features and bonus round modifiers. Here are the features and mechanics of the game:

Cascading Reels:
- Winning symbols explode to make room for new winning chances dropping from above
- This continues as long as you keep landing winners

Mystery Features:
- Land 3 Rosh scatters anywhere on the reels to trigger 1 of 3 mystery features
- Mystery Multiplier: Get up to 100x multiplier after a win
- Mystery Cubes: Randomly placed cubes transform up to 12 symbols into matching symbols
- Mystery Ways: Get 3 free respins where the number of ways increase significantly per spin

Free Spins Bonus Round:
- Triggered by landing 4 Rosh scatters on the same spin
- Get 8, 10, or 12 spins when you land 4, 5, or 6 scatters, respectively
- Plays out on a 5x7 grid, with the 6th reel locked (it takes a scatter to unlock it)
- Land mostly multipliers, blanks, and a 2+ extra spins symbol
- Multipliers are collected and summed up on the top right-hand side

Mystery Cube Bonus Round:
- Land a Mystery Cube during the bonus round to activate 1 of 3 features
- Mystery Double: Doubles all the existing multiplier values
- Mystery Collect: Starts with a random multiplier value up to 100x, and then absorbs the sum of all multiplier values you land on each spin into its own
- Mystery Removal: Removes all lower value multipliers from the screen

The RTP of Rosh Immortality Cube is undisclosed, but the game has the potential to payout up to 30,000x your stake. Overall, Rosh Immortality Cube Megaways is a thrilling and action-packed slot game that is sure to captivate players with its unique features and mechanics.