Series
Emerald series
Emerald King series and its Irish bonus formula
The Emerald King series is Reel Kingdom's high-volatility Irish-fruit franchise, built on a 5x3, 20-payline frame, leprechaun imagery and wild-led features. Emerald King established the model in 2020 with energy collection, random or additional wilds and a 20,000x maximum, concentrating its identity in the base-game wild system rather than a long list of bonus modes.
Ranked by Slot Score
| Game | Year | RTP | Volatility | Slot Score |
|---|---|---|---|---|
 Emerald KingReel Kingdom | 2020 | 95.51% | High volatility | 64 |
 Emerald King: Rainbow RoadLatestReel Kingdom | 2021 | 95.66% | High volatility | 77 |
Emerald King: Rainbow Road expands the feature layer without enlarging the grid or raising the win cap. The 2021 follow-up adds scatters, free spins, multipliers and a pick-object bonus game while retaining 20 paylines, high volatility and the 20,000x maximum. RTP moves only from 95.51% to 95.66%, so the meaningful sequel upgrade is access to more structured bonus play, not a different mathematical ceiling.