Thinking about giving Rainbow Ray a spin? We tested it thoroughly so you know what to expect. Developed by Endorphina, Rainbow Ray arrives with medium low volatility and an RTP of 96.04%. Top wins are capped at 5,000x your stake, a healthy ceiling worth chasing. You get 5 reels and 30 paylines, all built around a st. patrick's day and irish theme. So does it deliver? Let's get into it.
Written by Emma Roberts · Last updated: January 2026
This release, Rainbow Ray, is the work of Endorphina, dressed up with a st. patrick's day and irish theme. It runs on a 5-reel grid running 30 paylines with medium low volatility, and 96.04% RTP.
Where Rainbow Ray earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. Thanks to its medium low variance, wins come often enough to suit casual, lower-risk play. Overall it's a well-rounded release that knows what it is.
The RTP of 96.04% is right around the industry average of ~96%. This represents a fair return that's in line with what most modern slots offer.
Medium-low volatility offers a good balance of regular wins with occasional larger payouts. Expect frequent hits with modest amounts, suitable for casual players who want low-risk entertainment.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Rainbow Ray features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
3.0 / 5 — Good
Rainbow Ray by Endorphina is a solid offering that delivers good entertainment value. The 96.04% RTP combined with medium low volatility creates a well-balanced gaming experience.